Diesel Place : Chevrolet and GMC Diesel Truck Forums - View Single Post - Variable frequency clacking?
View Single Post
Old 12-28-2019, 03:35 PM   #5 (permalink)
Ex- 6BT Square Body Man
legendman's Avatar
Join Date: Aug 2008
Location: Oakdale, CT
Posts: 9,712

Bent push rod, maybe ?

Compression test? Is there a lot of blow by when you take the oil fill cap off?

If you loosen the injector line on the suspected cylinder does the noise go away?

Can easily hear the clacking in your audio link.

Does this sound the same to you?
This engine ended up having cracked pistons when I ripped it apart.

Originally Posted by Diaric View Post
What your saying happened, should never be able to happen.
Originally Posted by smackzed View Post
I put a chevrolet tailgate on my last truck and it started acting like a girl...love me, need me, want me pay attention to me. Took it off and put the GMC back on (fixed the latch) and it went back to being the same old dirty bastard it used to be
~ Bob
1987 K20 5.7 TBI 700r4 np208
1990 C1500 5.7 700r4 Short stepside
1999 Chevrolet K2500 5.7L Auto
2006 Jetta TDI 5sp

Do yourself a favor and read the 6.2 Diesel Student Training Manual ... lots of good info...it's in PDF format located here >> PDF Manuals
Offline   Reply With Quote