See procedure below for 3.1L and 3.4L in plenty of Chevy, Buick, Pontiac and Oldsmobile models. Malibu,Classic, Lumina, Alero, Regal, Century, cool Prix, grand Am, Montana, Transport, venture van, Silhouette, etc.
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1999 Pontiac 3.4 V6 3400. Question:Top of engine tore down for oil getting in coolant. Gaskets. Found bad at coolantjackets. To replace intake gaskets what is the procedure because that installing correct size push rods inthe best spot and also valve adjustment ~ taking press rods the end of way to acquire gaskets. I am formergm technology years ago, now hefty truck.
Thank you for the generous pointer / Donation. Answer:There is no unique valve adjustments on this motor as was the situation with the larger Chevy smallblock. Rocker eight are just torqued come specs. The most important thing is the the press rods areinstalled correctly. They are various lengths. GM recommends brand-new lower input bolts, and also haveupdated the talk specs top top the rocker arms and also lower entry bolts.
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The intake and exhaust rocker / Pushrods are labeled in the photo below.Exhaust pushrods are longer than intake. Intake valves space closer to the valley of the engine.
Torque spec on rocker eight is:14 NM (124 in.lbs.) plus 30 degreesLower entry bolts:long bolts- 13 NM (115 in. Lbs.)Short Bolts- 25 NM (18 FT. Lbs.)
1- Exhaust rods (Longer) are in this position2- entry rods (Shorter) space in this position
Tip / Donation
Bolt component numbers11588914 long11588915 short
No compression ~ above 3.4 V6 Aztec, changed one cylinder head only yet did remove press rods etcfrom both to change gaskets, additionally turned the engine over without press rods great compression,left overnight tho no compression any one have any ideas i am stumped. Lifters? Sound favor you have the press rods in the dorn order.Check them again using photo above.
I"m functioning on a 3.4l however when i tighten the rockers i have no compression and i have actually push tubein the stimulate they must be can my lifters be negative this car collection for awhile Sitting for a lengthy time will absolutely reason the lifters tobe very hard to pump up. Either they will must bereplaced, or you deserve to run the engine for a if to see ifthey will. To run too long though can cause otherengine damage.
When u open up a valve cover come a 3.1 v6 on one olds cutlass? to be the rocker arms an alleged tobe loose? Well, no they have to not it is in loose. If they room the rockerarm studs may have pulled the threads out of thecylinder head. If that occurred you would have to drilltap and using Helli-Coil to repair.
I simply completed this job, and after assembly car worked and ran fine. Do atest journey of 3-5 miles, Axel indigenous stop and while moving. Drove automobile backhome, idled for a couple of means, then drove a much longer distance. After perhaps 5miles, quit at a red light, and noticed what sounded choose valves tapping,then upon pressing the gas to accelerate, automobile seemed to shed power and"check engine" light started blinking. Is it possible the rocker eight bolts couldhave been improperly torqued? Yes, this sounds like at least one the the rocker studs haspulled that is treads the end of the cylinder head. This is causinga misfire, for this reason the blinking examine engine light. I wouldsuspect that is the one or an ext that were improperlytorqued. Over there is a repair kit to resolve this. That comes with adrill, tap and dye, and insert.
Had a rattle noise in mine 3.4l engine, misfiring on #4 cylinder, removed the valve cover found thatthe treads are stripped the end of the head, execute you think a Hellicoil will be solid enough to repair. Yes, a thread repair kit will do the trick and will actuallybe stronger than the factory setup. Simply make certain whenyou drill and also tap because that the Helicoil, that is that absolutelystraight v the initial hole. Girlfriend don"t come be turn off anywhen taking care of a rocker arm and valve traincomponents. Use some red Loctite top top the object of theinsert before you screw it into place.
while replacing my push rods i mistakenly placed an exhaust rods in an input rods place.. Inoticed if tightening (with 3/8" ratchet)A distinct noise and also bent the push rod. IS over there a wayto understand if i bent the valve or cracked the piston there is no removing the head again? If friend did not start the vehicle, you"re most likely ok andjust bending the push rod. I would install a brand-new correct sizepush rod, and after getting everything tightened backdown, revolve the motor end by hand to make certain there isnothing damaged and also no interference.
I just mounted a rebuilt head and also when i tighten down the #3 one #5 on the 3.4 I have the right to see the intakevalve open which gives me no compression once I check it with air. We don"t recognize why so theirsending me an additional head for my old head once put ago on doesn"t open up the valve thePushrods room correct the talk is proper an ideas why? Some of the valves opening as soon as you tighten down therockers is normal. Which people that open depends ~ above theposition of the camshaft. The component that does no makesense is the they walk not do this ~ re-installing theold cylinder head.
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I did the exact same thing the an earlier poster walk in that i torqued the push rod bolt come 124 FOOTlbs. Stripping the cylinder head. You commented saying that there was a fix kit to deal with this???Where can I uncover this repair kit? Thanks The thread repair kit have the right to be found at any kind of local parts store.