L83 rocker arm torque specs.

well im guessing nobody on here knows how much to torque a head down!! Like. Fishie. 304 posts · Joined 2009. #3 · Mar 3, 2012. 35 ft/lb on cylinder head cover. torque sequence is as follows. 3 1 5. 6 2 4.

L83 rocker arm torque specs. Things To Know About L83 rocker arm torque specs.

STICKY STICKY please. TORQUE SPECS FOR 97/2003. Accelerator Control Cable Bracket Bolt 16 Nm (12 ft. lbs.) Balance Shaft Driven Gear Bolt 22 + 70?Nm (16 + 70?ft. lbs.) Balance Shaft Retainer Bolt 30 Nm (22 ft. lbs.) Camshaft Position Sensor Bolt 10 Nm (89 inch lbs.)Alternator Rear Bracket Torque Spec. 18 ft-lbs. A/C Compressor Torque Spec. 37 ft-lbs. 3500 6.0L engine bolt torque specs, common problems and repairs. Cylinder Head Torque specs, timing chain installation, manifolds torque specs, engine assembly.The tables after it contain all torque spec values I could find. Most-used torque settings for Ford Super Duty 3. Part Description Torque (Nm) Torque (ft/lbs) Remarks Applies to; Oil pan: Oil pan drain plug: 23: 17: ... Rocker arm: Intake rocker arm shaft assembly bolts: 20: 15: Stage 2: 6.2L Engine; Rocker arm: Exhaust rocker arm shaft ...Final Words. To summarize and simplify the above information, the lifter tray bolt torque for LS1, LS2, LS7, LS9, and LSA engines is 108 in-lb or 8.3 ft-lb. The lifter tray bolt torque for the remaining LS2, LS3, and LS4 engines is 89 in-lb or 7.4 ft-lb. Also, you can tighten the lifter trays in any sequence you like, and one pass with the ...

4. Now spin the intake pushrod with your fingers while tightening down the rocker arm. When you feel a slight resistance to the turning of the pushrod, you are at "Zero Lash". Turn the adjusting nut down one half to one full turn from that point. Lock the adjuster into position. The intake is now adjusted properly.750 WHP. 3582 GEN2 DBB. 880 WHP. J30-J32-J35 Honda V6/I4 J-Series Torque Specs CYLINDER HEAD V6 J30-J32-J35 & I4 TORQUE SPECS Cylinder Head Stud Bolts: Step 1: 29 ft lbs Step 2: 51 ft lbs Step 3: 72.3 ft lbs Camshaft thrust plate bolt: 16 ft lbs Camshaft sprocket bolts: 43 ft lbs Intake manifold nuts/bolts: 16ft lbs.Object moved to here.

1) Adjust the rocker arm while spinning the pushrod between your fingers, until the pushrod starts to drag. This is zero lash. 2) Torque the bolt down to spec; this should be within 1.5 rotations of the bolt of zero lash or you need to shim the pedastal. When adjusting the rocker arms I use the method described in the book "Mustang Performance ...Listed below are the general torque recommendations for bulk 5-packs and engine/accessory fasteners. Recommended torque is equal to 75% of the fastener's yield strength. Simply read down to the correct fastener size, then across to find the torque value for your application. Always use ARP Ultra-Torque ® and follow the instructions below to ...

Jun 1, 2009 · 7231 posts · Joined 2005. #6 · Jun 1, 2009. Its more of any issue when you have shaft mounted rockers. Stockers you just torque them all down as you go. They are self centering also. Have over 50K on my car with 5 cam swaps of various sizes and all is well. LS3 longblock, LS9 cam, LS9 headgaskets, NW 90mm, APS 5psi = 610 RWHP / 578 RWTQ. Wellerstein joined Quartz members for a conference call on Aug. 20 to discuss his recent article on the state of US nuclear policy, deterrence, and... house cats? America’s nuclear...Alternator Rear Bracket Torque Spec. 18 ft-lbs. A/C Compressor Torque Spec. 37 ft-lbs. 1500 6.0L engine bolt torque specs, common problems and repairs. Cylinder Head Torque specs, timing chain installation, manifolds torque specs, engine assembly.The "lash" spec for hydraulic roller engines is 0 plus 0.020-0.060 in. of preload on the lifters. In other words, after the exact point when you're tightening the rocker arm and achieve zero lash, the plunger in the lifter should get pushed in 0.020-0.060 in. This usually equates to 1/2 to 1-1/4 of a turn on the rocker arm bolt.99-03 7.3L Powerstroke Tech Articles - 7.3L Engine Specs / Torque Specs - Bore and Stroke 4.11 in x 4.18 in Firing order 1-2-7-3-4-5-6-8 Oil pressure 40-70 psi Note: Normal operating temperature @ 3,300rpm Engine type and number of cylinders V-8 Compression Ratio 17.5 to 1...

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The oil pump assembly should be tightened down to the engine block using 18 ft-lbs. The pumps cover bolts can be installed after lubing up the oil pump gear. The oil pump cover bolts torque down to 8 ft-lbs. On the bottom end of the pump the pickup tube can be installed and torqued down to the pump using 8 ft-lbs.

I didn't think any Chevy engines had rockers arms that were tightened down all the way to a specific torque value like Ford or Mopar. We generally tighten the nut enough to remove the valvetrain lash and then tighten an additional 1/2 to 3/4 turn, depending on your preference. If you're referring to the run-on torque, that is the amount …GMC Sierra 1500 5.3L A/C Compressor Torque Specs : 37 ft-lbs. 1500 5.3L engine bolt torque specs, common problems and repairs. Cylinder Head Torque specs, timing chain installation, manifolds torque specs, engine assembly.The 5.3L OHV engine uses 3 different sized head bolts being 6 long ones 4 medium sized ones and 5 small ones. The smaller bolts go on the outer side of the cylinder head and get tightened down to 22 ft-lbs. The long and medium sized bolts go in the center of the cylinder head where the oil can access them.The rocker arms are fastened down with bolts that should be torqued to 45 ft-lbs. Be sure that the engine is at TDC before tightening down the rocker arm bolts to prevent valve damage. After the rockers you can install the glowplugs and hand tighten them and then move to the injectors and torque them in a 2 step process.MIKE91B. 1843 posts · Joined 2015. #2 · Feb 10, 2020. Left head Allen head bolt Is 59 lbft then 90* and the 40*. All the rest are 59lbft then 90* then 60*. Get every little bit of coolant out of the bolt holes or you will break the bolts. 2015 Reg cab, 2wd, 5.3l, On3 single turbo, E85 conversion, 4.10 rear gear, and HP Tuner software.Alternator Rear Bracket Torque Spec. 18 ft-lbs. A/C Compressor Torque Spec. 37 ft-lbs. 1500 6.0L engine bolt torque specs, common problems and repairs. Cylinder Head Torque specs, timing chain installation, manifolds torque specs, engine assembly.The oil pump assembly should be tightened down to the engine block using 18 ft-lbs. The pumps cover bolts can be installed after lubing up the oil pump gear. The oil pump cover bolts torque down to 8 ft-lbs. On the bottom end of the pump the pickup tube can be installed and torqued down to the pump using 8 ft-lbs.

ARP 234-3711 for 5.3 6.2 Gen V LT1 L83 L86 M8 Corner Bolts LS Engine Pro Series High Performance . Cylinder Head Bolts, 12-point, ARP 2000, Black Oxide, with M8 Corner Bolts ... All kits come complete with hardened parallel washers for even load distribution and accurate torque readings. ... LS Series Rocker Arm Instructions;136 n.m [100 ft-lb] Step 3. Rotate 180 degrees. NOTE: Rotate at least two flats, but not more than three flats. Tighten the seven capscrews on the fuel pump side of the cylinder head in the sequence shown. Torque Value: 68 n.m. [50 ft-lb ] Here is the procedure for torquing rocker arms.Rocker Arm Torque Specs : 26 ft-lbs: Lower Assembly Torque's; Timing Cover Torque Spec (larger) 18 ft-lbs: Timing Cover Torque Spec (smaller) 8 ft-lbs: Oil Pickup Tube Torque Spec: 8 ft-lbs: Oil Pan Bolts Torque Spec: 8 ft-lbs: Oil Drain Plug Torque Specs: 11 ft-lbs: Intake Manifold and Fuel Rail Torque Spec; Intake Manifold:Dodge Dakota 2 (1997-2004) Torque Spec Settings. Below you'll find the tightening torques for the Dodge Dakota 2 in both Nm and ft/lbs. The first table contains the most-used torque settings. The tables after it contain all torque spec values I could find.Crankshaft Main Caps Installation. The Ford 6.0L block uses standard main caps that have 2 long bolts and 2 normal bolts per each cap. The main caps should all be installed and finger tightened with oil before torqueing. Once all the caps are installed and slightly tightened you can start from the middle cap and torque the 4 bolts to 76 ft-lbs.The oil pump assembly should be tightened down to the engine block using 18 ft-lbs. The pumps cover bolts can be installed after lubing up the oil pump gear. The oil pump cover bolts torque down to 8 ft-lbs. On the bottom end of the pump the pickup tube can be installed and torqued down to the pump using 8 ft-lbs.

Jul 9, 2023 · The LS rocker arm torque specs are 22 lb-ft or 30 Nm. The sequence is to position cylinder number one at the top dead center of the compression stroke and tighten the exhaust valve rocker arms on the driver’s side cylinder bank and intake valve rocker arms on the passenger side bank. Then, rotate the crankshaft 360 degrees and tighten the ... However, always confirm for your engine's torque specifications using the repair or shop manual for your specific year, make, and model. Part ---- Foot / Inch Pounds Of Torque. Air Injection Reaction (AIR) Pipe-to-Exhaust Manifold Bolts LS1/LS6 15 ft. lbs. ... Ignition Coil Bracket-to-Valve Rocker Arm Cover Bolts LS1//LS2/LS3/LS6/LS7 106 inch ...

Rocker Arm Torque Specs : 26 ft-lbs: Lower Assembly Torque's; Timing Cover Torque Spec (larger) 18 ft-lbs: Timing Cover Torque Spec (smaller) 8 ft-lbs: Oil Pickup Tube Torque Spec: 8 ft-lbs: Oil Pan Bolts Torque Spec: 8 ft-lbs: Oil Drain Plug Torque Specs: 11 ft-lbs: Intake Manifold and Fuel Rail Torque Spec; Intake Manifold:LT1 LT4 L86 L83 & Gen V Engine Guide, Vin Decoder. LT1 LT4 L86 L83 & Gen V Engine Guide, Vin Decoder. My Cart. Checkout. ... Torque to Yield (TTY) Cylinder Head Bolt Size (10) M12 x 1.75, M8 corner bolts ... Rocker Arm Mounting Style: Pedestal:BTR Brian Tooley L83 L86 Stage 3 Truck Camshaft. Fits 2014-2018 5.3L 6.2L L83 L86 L8B Gen V Engines. Specs: 215/233 .540"/.540" 110 LSA +14% fuel lobe. The Stage 3 L83 Camshaft is the perfect mix of power and drivability for those who want to stretch their L83's legs out in the mid-upper RPM band and turn heads in parking lots.L83; Rocker arm: Valve rocker arm bolt: 30: 22: 5.3L Engine; L83; Rocker arm: Valve rocker arm cover bolts: 10: 7: 5.3L Engine; L83; Fuel system: Fuel pump power control …The 454 2 Bolt main is a powerful engine that requires specific torque specs to ensure its longevity and performance. The head bolts should be torqued in three stages, first at 15 lbs-ft of torque, then at 35 lbs-ft, and finally at 50 lbs-ft. The rocker arm should be tightened down to 25lbs-ft while the rod bolts require 45lbs-ft of torque.Camshaft Thrust Bolts Torque spec : 8 ft-lbs: Rocker Arm Torque Specs : 26 ft-lbs: Lower Assembly Torque's; Timing Cover Torque Spec (larger) 18 ft-lbs: Timing Cover Torque Spec (smaller) 8 ft-lbs: Oil Pickup Tube Torque Spec: 8 ft-lbs: Oil Pan Bolts Torque Spec: 8 ft-lbs: Oil Drain Plug Torque Specs: 11 ft-lbs: Intake Manifold and Fuel Rail ...Final Words. To summarize and simplify the above information, the lifter tray bolt torque for LS1, LS2, LS7, LS9, and LSA engines is 108 in-lb or 8.3 ft-lb. The lifter tray bolt torque for the remaining LS2, LS3, and LS4 engines is 89 in-lb or 7.4 ft-lb. Also, you can tighten the lifter trays in any sequence you like, and one pass with the ...Feb 7, 2021 · Ls6 rocker arm installation and torque sequence.This procedure should be used when removing rocker arms so the aluminum threads don't get stripped.Music: htt... NOTE: Do not run the rocker arm with the adjuster bottomed-out. Doing so will result in damage to the rocker arm and other engine components. Step 10: Using pump-style oil can against the oiling hole in the adjuster, pump the handle until oil comes out of the oil passage behind the rocker arm roller tip. Torque Specifications with Oil

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The 390's design varies slightly from most other engines of the time, such as the use of rocker arm shafts rather than pedestal-mounted rocker arms. For this reason, the 390's factory torque specifications should be followed. Spark Plugs. Tighten each of the 390's spark plugs to between 15 and 20 ft-lb of torque. Cylinder Head Bolts.

Drives: 2010 camaro ss. Join Date: Nov 2012. Location: Richmond Hill, GA. Posts: 726. Tighten them all on the base circle of the cam to 22 ft/lbs. If you aren't sure which is what, just rotate the engine 180 degrees four times and repeat the torque procedure.Cylinder Head Torque Specs : 44 ft-lbs + 90° Rocker Arm Torque specs : 14 ft-lbs + 30° Valve Lifter Guide Torque specs : 8 ft-lbs: Valve Cover Torque specs : 8 ft-lbs: Exhaust Manifold to Head Torque specs : 12 ft-lbs: Exhaust Manifold to Pipes Torque : 18 ft-lbs: Exhaust EGR Pipes Torque Spec: 21 ft-lbs: Bottom End Torque's; Main Cap Bolts ...Listed below are the general torque recommendations for bulk 5-packs and engine/accessory fasteners. Recommended torque is equal to 75% of the fastener's yield strength. Simply read down to the correct fastener size, then across to find the torque value for your application. Always use ARP Ultra-Torque ® and follow the instructions below to ... The oil pump assembly should be tightened down to the engine block using 18 ft-lbs. The pumps cover bolts can be installed after lubing up the oil pump gear. The oil pump cover bolts torque down to 8 ft-lbs. On the bottom end of the pump the pickup tube can be installed and torqued down to the pump using 8 ft-lbs. rocker arm torque specs. i need help what arer the torque specs f150 2007 v6 4.2l rocker arm Reply Like. 07-29-2010, 09:15 PM #2 GATORB8. Senior Member . Join Date: Dec 2009. Location: Arlington Heights, IL. Posts: 5,001 Likes: 4 Received 147 Likes on 78 Posts Check with Bucko, my manual doesn't cover the V6 ...7.3 IDI Head Bolt and Stud Torque Sequencing. The 6.9 head bolt and stud has a 7/16″ bolt diameter with 14 threads per inch. The 7.3 bolt/stud has 1/2″-13 threads. ( Note, I have torqued my 7.3 ARP studs down to 150 and 140 ft-lbs, from the advice of R&D IDI Performance. Read the links for more information.)Chevy Silverado 3 (2014-2018) Torque Spec Settings. order_242 from Chile, CC BY-SA 2.0, via Wikimedia Commons. Below you'll find the tightening torques for the Chevy Silverado 3 in both Nm and ft/lbs. The first table contains the most-used torque settings. The tables after it contain all torque spec values I could find.Rocker arm bolts..... 22 ft-lbs Rocker arm cover bolts ..... 106 in-lbs Water inlet housing bolts..... 11 ft-lbs Crankshaft balancer bolt initial seating ..... 240 ft-lbsThe oil pump assembly should be tightened down to the engine block using 18 ft-lbs. The pumps cover bolts can be installed after lubing up the oil pump gear. The oil pump cover bolts torque down to 8 ft-lbs. On the bottom end of the pump the pickup tube can be installed and torqued down to the pump using 8 ft-lbs.Cylinder Head Torque Specs (Long) 46 ft-lbs + 90° Rocker Arm Torque specs : 37 ft-lbs: Valve Lifter Retainer Torque specs : 8 ft-lbs: Valve Cover Torque specs : 8 ft-lbs: Exhaust Manifold Torque specs : 10 ft-lbs: Exhaust Manifold to Pipe Torque : 20 ft-lbs: Bottom End Torque's; Main Cap Bolts Torque Spec : 70 ft-lbs: Connecting Rod Bolts ...The L86 is a Gen. 5, 6.2L, small-block engine powering 2014-present GM trucks and SUVs. They are known as the EcoTec3 6.2L engines. These engines use a longer intake runner than its cousin, the LT1.This helped the L86 produce peak torque 500 rpm sooner than the car version of the 6.2L engine.However, always confirm for your engine's torque specifications using the repair or shop manual for your specific year, make, and model. Part ---- Foot / Inch Pounds Of Torque. Air Injection Reaction (AIR) Pipe-to-Exhaust Manifold Bolts LS1/LS6 15 ft. lbs. ... Ignition Coil Bracket-to-Valve Rocker Arm Cover Bolts LS1//LS2/LS3/LS6/LS7 106 inch ...

In those engines you do have to follow a different path. Ford Inline Six, 200, 250, 4.9L / 300 - Rocker Arm torque specs - Ok this is probably a dumb question but I recently got done putting my engine back together after replacing the head gasket. I need to adjust my rockers so they work correctly. I am not sure of the torque # to set them to.Over 6,000 Automotive Torque Specs. Search Car Torque Specifications by Engine or Model. TorkSpec. How it works; Rides; Projects; FAQ; Sign in or Sign up. Automotive Engine Torque Specs ... L83. GM 5.4L-327ci-V8 SM-BLOCK. GM 5.7L-354ci-V8 PONTIAC. GM 5.7L-346ci-V8 GEN2. GM 5.7L-350ci-V8 SM-BLOCK. GM 6.0L-364ci-V8 L96. GM …When you go to install the engine into the vehicle or if it is already in the vehicle the torque specs for the exhaust manifold to the exhaust pipes or catalytic converter is 26 ft-lbs. The EGR system consists of a series of pipes that range from the manifold to the head. The EGR pipes can be torqued down to 22 ft-lbs.The oil pump assembly should be tightened down to the engine block using 18 ft-lbs. The pumps cover bolts can be installed after lubing up the oil pump gear. The oil pump cover bolts torque down to 8 ft-lbs. On the bottom end of the pump the pickup tube can be installed and torqued down to the pump using 8 ft-lbs.Instagram:https://instagram. idle miner tycoon gold mine Push or use a hammer to tap the number 1 support toward the rear of the engine. Tighten the number 1, 2, 3, and 4 support capscrews to their final torque value. Torque Value: n.m 122. ft-lb ] [90. Check the front and rear assemblies for the correct clearance. Check the support capscrews for the correct torque value.Torque Specs Engine Parts/Bolts Torque: Camshaft Retainer Bolts 18 lb ft Camshaft Sensor Bolt 18 lb ft Camshaft Sprocket Bolts 26 lb ft Connecting Rod Bolts - First Design ... Valve Rocker Arm Cover Bolts: 106 lb in: Water Inlet Housing Bolts: 11 lb ft: Water Pump Bolts (First Pass) 11 lb ft: Water Pump Bolts (Final Pass) 22 lb ft: dylan whetzel stafford va Need torque specs for injectors and rocker arms Cummins ISX 475 serial number 79217155 - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... I need to see if I can get the injector hold down and rocker arm torque specs for a 1995 cummins l10-300 ...All of the torque specs. are listed in the "Service Specifications" section. DDD, Mar 1, 2014 #16. HillJackJDS and stephenw13 like this. Mar 1, 2014 at 5:14 PM #17 #17. Agent Smith Always outnumbered, never outgunned. Joined: Oct 4, 2010 Member: #44197 Messages: 1,018 Gender: Male lexington women's health brannon crossing Oldsmobile Torque Specs. 02-07-2013, 12:56 PM. Oldsmobile Small-Block Engines. Cylinder Head Bolts (1/2in. bolt) 130 ft. lbs. Cylinder Head Studs (1/2in.) 120 ft. lbs. Camshaft Sprocket Bolt 65 ft. lbs. Exhaust Manifold Bolts 35 ft. lbs. Flywheel-to-Crankshaft Bolts 75-85 ft. lbs. Harmonic Balancer-to-Crankshaft Bolt 130 ft. lbs.GM 4.6L-283ci-V8-SM-BLOCK Engine Torque Specs. Over 6,000 Automotive Torque Specs. Search Car Torque Specifications by Engine or Model. TorkSpec. How it works; Rides; Projects; FAQ; ... Rocker Arm Stud To Cylinder Head. 50 Ft-Lbs. 600 In-Lbs. 67.79 N-m. Years: All. Note: Chevy Small Block. Type: Dim: Length: Head: Grade: Spark Plug To Cylinder ... how many quarts is 1 cubic foot of potting soil The LMG engine is a 5.3L Gen. IV iron-block engine used in GM trucks and SUVs between 2007 and 2014. For marketing purposes, it was also known as the Vortec 5300. The information listed here is for a stock LMG engine. Mechanically similar, General Motors’ LS and LS-based Vortec engines wound up on almost every branch of the GM family tree ... doug's auto sales pleasant view tennessee Chevy Impala 3.9L Rocker Arms Torque Spec : 25 ft-lbs Chevy Impala 3.9L Valve Lifter Guide Bolt Torque Spec : 8 ft-lbs ... Rocker Arm Torque specs : 25 ft-lbs: Valve Lifter Guide Torque specs : 8 ft-lbs: Lifter Oil Manifold Bolts Torque specs : 18 ft-lbs: Valve Cover Torque specs : westlakefinancial reviews The 454 2 Bolt main is a powerful engine that requires specific torque specs to ensure its longevity and performance. The head bolts should be torqued in three stages, first at 15 lbs-ft of torque, then at 35 lbs-ft, and finally at 50 lbs-ft. The rocker arm should be tightened down to 25lbs-ft while the rod bolts require 45lbs-ft of torque. sunset seattle wa 521 posts · Joined 2007. #1 · Feb 28, 2011. Rocker Arm / Valve Adjustment. I just installed a new B303 cam in my otherwise stock 302. I've read several instructions on how to adjust the rocker arms. Edelbrock recommends 1/2 turn past zero lash at bottom of cam lobe. The weiend and Chilton's instructions both recommends to torque to 18-25 lbs ...Views: The L83 and L8B are both Gen. 5, 5.3L, small block engines used in GM trucks and SUV's. They are known as the EcoTec3 5.3L engines. These engines are all-aluminum and use Active Fuel Management (AFM), Variable Valve Timing (VVT), and are Flex Fuel Capable (E85). The engines also use direct fuel injection technology, which shoots fuel ... family dollar lexington mi When you go to install the engine into the vehicle or if it is already in the vehicle the torque specs for the exhaust manifold to the exhaust pipes or catalytic converter is 26 ft-lbs. The EGR system consists of a series of pipes that range from the manifold to the head. The EGR pipes can be torqued down to 22 ft-lbs.Rocker Arm Torque Specs : 26 ft-lbs: Lower Assembly Torque's; Timing Cover Torque Spec (larger) 18 ft-lbs: Timing Cover Torque Spec (smaller) 8 ft-lbs: Oil Pickup Tube Torque Spec: 8 ft-lbs: Oil Pan Bolts Torque Spec: 8 ft-lbs: Oil Drain Plug Torque Specs: 11 ft-lbs: Intake Manifold and Fuel Rail Torque Spec; Intake Manifold: 71 north columbus To find out a wheel torque spec, check the vehicle’s manual, industry reference guide or the shop repair manual. Vehicle dealers can also provide an appropriate wheel torque spec. ...Apr 3, 2021 · With an increased valve lift on the exhaust side of the cylinder head, the GM Performance LS3 Rocker Arm delivers improved performance by allowing more air into the combustion chamber resulting in increased horsepower and torque output. Additionally, this rocker arm's unique design prevents excessive wear on your engine components while its low ... great clips trussville alabama The following specs apply to the following Ford Windsor engines: 351W. Fastener Type. Torque Specs. Main Cap Bolts. 95-105 ft.-lbs. Connecting Rod Bolts. 40-45 ft.-lbs. Cylinder Head Bolts. is patty mayo videos real Motor Mount (Engine Side) Torque. 59 ft-lbs. Motor Mount (Frame Side) Torque. 35 ft-lbs. 1500 4.3L engine bolt torque specs, common problems and repairs. Cylinder Head Torque specs, timing chain installation, manifolds torque specs, engine assembly. Apr 3, 2021 / 8 Minutes Read / By Albert. Do changing rocker arms increase horsepower? How tight should rocker arm bolts be? What happens if rocker arms are too loose? …