I have a main knock :(
09-19-2000, 12:08 AM
#1
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I have a main knock :(
Well guys I was informed that I had a main knock on cylinders 3 or 4. I knew I had it because at times I can actually hear it. They estimate only about 20k miles left in it before it lets go. Does that sound about right???
------------------
TPI 305,
Gutted airboxes,
gutted MAF,
K&N filters,
Corvette Servo.
14.9@93mph
"Speed kills, wanna live forever, drive a Ford."
------------------
TPI 305,
Gutted airboxes,
gutted MAF,
K&N filters,
Corvette Servo.
14.9@93mph
"Speed kills, wanna live forever, drive a Ford."
09-19-2000, 08:25 AM
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Check the timing chain. Make sure it is not slapping around the timing chain cover. That makes a nice knocking sound. I had that similiar problem a few years ago.
09-19-2000, 01:32 PM
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Car: 1991 Formula Firebird
Engine: 2001 LS1 Modded
Transmission: 2001 4L60E Yank SS3600 TC
You might want to consider a heavier weight oil as well. It will help cushion the knocking if it is a journal bering.
If you have an oil pressure guage unusually low oil pressure is also indicitive of a worn bearing.
Good luck.
09-19-2000, 03:55 PM
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I do have low oil pressure at times. Sometimes it is about 15 then other time it runs at a constant 25 or so. My mechanic said there was a short in the guage which caused that. As soon as I nail it thought the oil pressure goes up to 60.
------------------
TPI 305,
Gutted airboxes,
gutted MAF,
K&N filters,
Corvette Servo.
14.9@93mph
"Speed kills, wanna live forever, drive a Ford."
------------------
TPI 305,
Gutted airboxes,
gutted MAF,
K&N filters,
Corvette Servo.
14.9@93mph
"Speed kills, wanna live forever, drive a Ford."
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