engine knocking
Thread Starter
Instructor
Joined: Jul 2011
Posts: 170
Likes: 1
From: South Haven Minnesota
engine knocking
Hi guy I had a question about my stock 85' it seems to have a knock when on the the gas heavly or at full throtle. I read a thread where a similar guy on this fourm had this problem and he recomended a adjustale fuel presure regulator but I wanted some more advice thanks for reading.
Burning Brakes
Joined: Nov 2011
Posts: 841
Likes: 1
Hi guy I had a question about my stock 85' it seems to have a knock when on the the gas heavly or at full throtle. I read a thread where a similar guy on this fourm had this problem and he recomended a adjustale fuel presure regulator but I wanted some more advice thanks for reading.
Safety Car
Joined: Feb 2000
Posts: 3,771
Likes: 0
From: MANDEVILLE, LA La
Could be detonation (Pinging)? Sounds like marbles rolling around ?
It could be many things.Cheap Gas,Bad Knock Sensor.Timing to high for some reason. Did it set a code? Or Could be an engine issue. Bad main or Rod Brg's,Wrisr Pin, Piston Slap. etc.Let an experienced mechanic listen to it if your not sure.
It could be many things.Cheap Gas,Bad Knock Sensor.Timing to high for some reason. Did it set a code? Or Could be an engine issue. Bad main or Rod Brg's,Wrisr Pin, Piston Slap. etc.Let an experienced mechanic listen to it if your not sure.
Burning Brakes
Joined: Nov 2011
Posts: 841
Likes: 1
Could be detonation (Pinging)? Sounds like marbles rolling around ?
It could be many things.Cheap Gas,Bad Knock Sensor.Timing to high for some reason. Did it set a code? Or Could be an engine issue. Bad main or Rod Brg's,Wrisr Pin, Piston Slap. etc.Let an experienced mechanic listen to it if your not sure.
It could be many things.Cheap Gas,Bad Knock Sensor.Timing to high for some reason. Did it set a code? Or Could be an engine issue. Bad main or Rod Brg's,Wrisr Pin, Piston Slap. etc.Let an experienced mechanic listen to it if your not sure.
We really need to hear it. Could be loose lifter. I'd check the timing. Do you use high octane?
Melting Slicks
Joined: Dec 2004
Posts: 2,954
Likes: 2
From: Obama=death for America
Before you take it to your mechanic and pay him to listen to it, why not fill it up all the way with 93 octane and pour in a bottle of the stuff that displaces water. I forgot the name of that stuff.
Thread Starter
Instructor
Joined: Jul 2011
Posts: 170
Likes: 1
From: South Haven Minnesota
thanks for the info guys, I have a trusted mech. who won't charge me for giveing him a ride to see if he can here something but thanks for the advise anyway but will let everyone know what he says, I don't think it is anything major but more an anoyance.
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Thread Starter
Instructor
Joined: Jul 2011
Posts: 170
Likes: 1
From: South Haven Minnesota
hey guys me again I stoped by my mech. today and gave him a ride and 1 minute in the car and he knew what was wrong THE TIMING IS PINGING he said it is an easy fix so avoided a big problem. MY next question is do any of you know what the stock timing should be for a stock 85' L98 corvette any help would be great, I know it should be some degree but not sure what it suposed to be THANKS.
Burning Brakes
Joined: Nov 2011
Posts: 841
Likes: 1
hey guys me again I stoped by my mech. today and gave him a ride and 1 minute in the car and he knew what was wrong THE TIMING IS PINGING he said it is an easy fix so avoided a big problem. MY next question is do any of you know what the stock timing should be for a stock 85' L98 corvette any help would be great, I know it should be some degree but not sure what it suposed to be THANKS.