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Old 07-31-2014, 01:30 PM   #1
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Unhappy interference head?

does the 94' bonnie 3800 3.8l motor have an interference or non- interference head? sure would like to know before she goes I already did subframe issues repair and many others and more to go,especially hard 1st to 2nd and 3rd shifting problems. she got about 186k on her already.what should I do?...besides junk her.oh I forgot to mention she is an se.,if that matters.

Last edited by MeticulousMike; 07-31-2014 at 01:33 PM. Reason: forgot to add a spec.
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Old 07-31-2014, 01:36 PM   #2
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does the 94' bonnie 3800 3.8l motor have an interference or non- interference head? sure would like to know before she goes I already did subframe issues repair and many others and more to go,especially hard 1st to 2nd and 3rd shifting problems. she got about 186k on her already.what should I do?...besides junk her.oh I forgot to mention she is an se.,if that matters.
what does 'posts like a ricer type-r' under my screen name mean? I just noticed that and the fact that I'm a junior member.
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Old 07-31-2014, 02:14 PM   #3
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the more you post the nicer the labels get.

as far as the head, are you worried about the chain breaking? or stretching? the chain design will last a good 3-400 thousand before you should worry about that
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Old 08-01-2014, 01:16 PM   #4
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thanks for the reply...so it has a chain instead of a belt,huh?..but what if the chain snapped or skipped a tooth or two,is it an interference head? I don't need to have to worry about another thing going wrong.
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Old 08-01-2014, 08:41 PM   #5
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you dont have to worry at your mileage
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Old 08-02-2014, 02:04 PM   #6
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thanks for the reply.ok so now I'm not worried about it as much but I would still like to know if it is free running or interference.i checked gates and there was no listing for a belt. so I googled my question and at w-body.com one member said that they have both.how stupid does this sound when I specifically typed in 94' bonnie 3.8L 3800 v-6 se.pissed off I just went to get my Haynes manual from the car and it shows a chain.
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Old 08-02-2014, 02:16 PM   #7
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thanks for the reply.ok so now I'm not worried about it as much but I would still like to know if it is free running or interference.i checked gates and there was no listing for a belt. so I googled my question and at w-body.com one member said that they have both.how stupid does this sound when I specifically typed in 94' bonnie 3.8L 3800 v-6 se.pissed off I just went to get my Haynes manual from the car and it shows a chain.
P.*...btw I do own a 98' toy camry 4cyl but don't drive it it'* mom'* old lady car(lol!) it has over 100k and runs like a top. that has a belt and is a free running motor in case somebody wanted to know. So... I guess I do sound like a 'posts like a ricer type',lol!....
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Old 08-02-2014, 04:56 PM   #8
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I can't even recall. I think it is an interference motor though.

But I can't recall any timing chain failures in stock form. There has been some chain tensioner issues on occasion on abused and neglected engines, but that usually results in unholy noises from the chain slapping against the timing cover.
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Old 08-03-2014, 09:43 AM   #9
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there is no belts on any of the 3.8'*, and like he said even if neglected it will go to 300 before it starts stretching enough to cause issues but they dont break or skip a tooth, they just get loud and might start messing with the timing.
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