Front Motor Mount Bolt leaks

[C1Nelson]

I have a motor that the front motor mount yoke bolt leaks oil. It is on the left side as you look at the motor. I am going to put some thread sealer on the 1/2 x 13 x 1 1/8” bolt but was surprised when I saw oil.

I am wondering if all if these holes go into the block deep enough to leak? Or has this motor at some time been drilled deeper?

I have had four different motors and never had oil leak behind the bolt.

Has anyone else had this happen.

[BRENT in 10-uh-C]

Originally Posted by C1Nelson

I have a motor that the front motor mount yoke bolt leaks oil. It is on the left side as you look at the motor. I am going to put some thread sealer on the 1/2 x 13 x 1 1/8” bolt but was surprised when I saw oil.

I am wondering if all if these holes go into the block deep enough to leak? Or has this motor at some time been drilled deeper?

I have had four different motors and never had oil leak behind the bolt.

Has anyone else had this happen.

If we are speaking of a Model-A engine, the block does have a hole that goes thru however it is the timing cover that locates the bolt. Thread sealer or teflon tape will suffice but I would think the immediate problem is you ae using an inferior bolt that has undersized threads.

[C1Nelson]

Sponsored Links (Register now to hide all advertisements)

Thanks Brent I will find the correct bolt. I appreciate your help.