Mechanics

THE AUTO SHOP HAD A PROBLEM AFTER CHANGING OUT MY TIMING BELT THAT CAUSE THEM TO REPLACE THE HEADS ON MY ENGINE.

1988 Lexus GS 400 • 250 miles

Can the problem with the timing belt cause a hair line crack in my number 5 cylender. Before going to the shop, the car did not smoke or backfire. The took the car to the shop because it would idle itself down from time to time but not constant.
Avatar
Lou Hill
September 24, 2012.



Were the valves bent?

Roy

ASEMaster6371
Sep 24, 2012.
How do you know there is a hairline crack and where is it in the cylinder?

KHLow2008
Sep 24, 2012.
I was told by the shop that the valve in the number 1 cylinder was bent. The hairline crack in cylinder number 5 - when facing the car from the front is at 3 oclock.

Tiny
Lou Hill
Sep 24, 2012.
Could the problem with the timing belt also effect cylinder number 5?

Tiny
Lou Hill
Sep 24, 2012.
Bent valves indicates the timing belt installation was not done correctly but it should not cause any cracks, especially if it is on the cylinder liners.

You have the cylinder heads off?

KHLow2008
Sep 24, 2012.