I rebuilt my David Brown 990 about 8 years ago. I put the valve cover gasket in dry, and it started to leak on the right side of the engine soon after running it the first time. So I put some silicone on there, gave it plenty of time to set and put the cover on. No problems since. I am about to replace the head gasket and I just looked in my manual and saw where I am supposed to start the engine and let it run for half an hour when I am done and retighten the bolts holding on the head. I don't think I did that last time.
I don't have two gaskets, so I thought I would ask if putting silicone on this gasket is something people do or is there some other sealing material? I may just have to let it leak a little while it runs for that half hour before resetting the head bolts.
Thanks.
I don't have two gaskets, so I thought I would ask if putting silicone on this gasket is something people do or is there some other sealing material? I may just have to let it leak a little while it runs for that half hour before resetting the head bolts.
Thanks.