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3.4 DOHC timing belt


bobbo

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sorry if this has been asked before, i am a newbie here, just picked up a 1995 Cutlass Supreme 3.4 DOHC, have no idea when the Timing belt was last done so i am going to do it myself....car has 170kms, is there a kit to do this or everything must be purchased separately?

also gonna switch plugs and wires so i have a good 'base' starting point...

any suggestions would be appreciated..my last GM 3.1 V6 i used Bosch platinums for the last 150kms with no probs...

 

Bob

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Don't go with the Bosch's on the 3.4 DOHC. The engine is a bit picky and it will fowl them quickly. The ones in my car lasted around five thousand miles and I've heard similar stories from others on the board. Just go with the regular AC Delco plugs or rapid fires they'll last and they're no more expensive than the BOSCH plugs.

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thanks for the quick replies guys... will propably go with the rapidfires....are there any other 'quirks' that i should know about this engine...or things to look out for? i've heard they are a 'high maintenance' motor !!

also if you have other good links besides this site i would appreciate the info...

 

Bob

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theres a lotta people on here that dont like our pushrodless motor, but they arent bad motors if you dont mind getting you hands dirty. Check for the o-ring to see if its leaking, its under the rear head on the drivers side, pain in the balls to fix if its leaking but thats aout the worst of it.

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Adding to what Jeff said, if your going to do your timing belt you may as well dig in and replace your upper and lower intake gaskets as well since those typically die around the 100k mile mark (160,000 km). If you dig around on the 60degreeV6 site you'll find further instructions for that as well. It will run around $50 for the gaskets, and only add less than an hour or so to the project as opposed to a couple spent doing it at a later time. And while your doing that if the car is leaking oil the o-ring drive seal is probably the culprit. Seal it up good with some silicone or try plopping on a new o-ring if you can. Even if its not leaking yet, and it will, slap some silicone on the general area and hope for the best. Again, good instructions can be found on 60degreeV6.

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