I bought another SVX at an auction last week. For that reason, there was no guarantee. Now I'm hearing a noise that sounds as though it's in the bottom of the engine. It does not sound like a ''normal'' rod or main bearing knock, although I can't rule that in or out until I hear from you all. The noise starts at about 2500 RPM whether sitting still or under load. I had thought it went away at higher RPM, but now think it's just masked by all the other things going on. There is no indication of low oil pressure like I think there would be if it had a bad rod or main bearing. Has anyone else ever experienced such a noise in an SVX? If so, what was it?
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Guest Message by DevFuse
Odd engine noise, '95 SVX
Started by
MG McAnick
, Jun 07 2006 05:26 PM
3 replies to this topic
#2
SuBrat84
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- Members
- 1,520 posts
What's REALLY going on???
- Tucson
Posted 07 June 2006 - 05:32 PM
Yes. My 94 is horrible. It got worse after i ran 100 octane in it. now it does it at idle and anything below ~2500 rpms. It used to do it just under 4k rpms.. I'm not 100% on this.. but I think what it is, in the cat converters and / or resonator pipes there is stuff coming loose.. so it's kinda like a metal rattling noise that is affected by how much exhaust pressure there is. i intend to gut my cats and resonators to see if this fixes it. Another slightly more expensive option would be new exhaust. Again, I am not POSITIVE this is the problem... it could have something to do with exhaust valves or ????
#3
MG McAnick
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- Members
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- 38 posts
USMB Regular
- Wichita Kansas
Posted 09 June 2006 - 09:56 PM
I crawled under it today with a stethoscope. I think we can be certain that the noise in not coming from disintegrating catalytic converters, but for the life of me, I can't tell where it is coming from. The oil is coming from the front seal, so it's a candidate for new timing belts at the same time as that job is tackled.
#4
nipper
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- Members
- 17,134 posts
Semi Elite Master of the
- Long Island NY
Posted 09 June 2006 - 10:02 PM
Remove one spark plug wire at a time and see if the noise changes pitch. Is it from the front center or rear of the engine. Does it do it when the engine is cold?
nipper
PS i love svx, looking for one for myself. There is an svx board, but they are sort of useless as far as anything thats not the tranny or the differentials.
nipper
PS i love svx, looking for one for myself. There is an svx board, but they are sort of useless as far as anything thats not the tranny or the differentials.
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