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DOHC noise

general car and site related talk and chat.
badass88gt
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DOHC noise

Post by badass88gt » September 12, 2005

Do dual overhead cam motors tend to produce more valvetrain noise then basic OHV motors? Is this common?
1988 Ford Mustang LX
306ci 5 speed

1990 Isuzu Pickup
2.3 carbed 5 speed 2wd

2000 Yamaha YZ125
125cc 6 speed

badass88gt
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Post by badass88gt » September 12, 2005

the acura I used to have, 1.8 DOHC (1990) had been ran low on oil, and now it ticks. I called up josh (tenchu) he says it could be a knock, since its such a small engine, what I would think of as valve noise on a V8 could actually be a knock. What do you guys think?

sfc
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Post by sfc » September 13, 2005

I think you shouldn't call tenchu for car help ;) Knock sounds nothing like valve noise. You would know if there was knock going on.
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Secret Squirrel
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Post by Secret Squirrel » September 13, 2005

[quote="sfc"]I think you shouldn't call tenchu for car help ]


BUAHHAHAHAH




SS

badass88gt
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Post by badass88gt » September 13, 2005

from every engine that I ever worked with that knocked, it wasn't a constant sound until it was seconds away from blowing. This is a very constant tick tick tick sound, that occurs all throughout the rpm range. Looked under the oil cap with a flashlight, saw the cam was scored, dont know if that makes a difference but I would assume its not good. If it is in the head on the car, any suggestions to what it might be? cam bearings?

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Nikku
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Post by Nikku » September 13, 2005

badass88gt wrote:from every engine that I ever worked with that knocked, it wasn't a constant sound until it was seconds away from blowing. This is a very constant tick tick tick sound, that occurs all throughout the rpm range. Looked under the oil cap with a flashlight, saw the cam was scored, dont know if that makes a difference but I would assume its not good. If it is in the head on the car, any suggestions to what it might be? cam bearings?

there are no cam bearings, you probably just need a valve adjustment
Just call me Dr. Vice.

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tenchu
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Post by tenchu » September 13, 2005

[quote="sfc"]I think you shouldn't call tenchu for car help ]

I guess you don't know how many motors ive blown :roll:.


Take it to AAS bro, they should be able to help ya. :up:
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ls.pwrd.hb.
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Post by ls.pwrd.hb. » September 14, 2005

Secret squirrel wrote:
sfc wrote:I think you shouldn't call tenchu for car help ]


BUAHHAHAHAH




SS
hahahah but really if im pry sure you would be able to tell bye the sound if it was normal or not
low n slow

sfc
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Post by sfc » September 14, 2005

tenchu wrote:
sfc wrote:I think you shouldn't call tenchu for car help ]

I guess you don't know how many motors ive blown :roll:.


Take it to AAS bro, they should be able to help ya. :up:
I do... which is exactly why I told him not to listen to you. Given that you COULDNT FIGURE OUT WHEN THE MOTOR WAS BLOWN IN THE FIRST PLACE.

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tenchu
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Post by tenchu » September 14, 2005

sfc wrote:
tenchu wrote:
sfc wrote:I think you shouldn't call tenchu for car help ]

I guess you don't know how many motors ive blown :roll:.


Take it to AAS bro, they should be able to help ya. :up:
I do... which is exactly why I told him not to listen to you. Given that you COULDNT FIGURE OUT WHEN THE MOTOR WAS BLOWN IN THE FIRST PLACE.
Sure I couldn't thats why I had arangements for replacment as soon as it happened. Thanks ;)

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