Recent content by andrew_donaldson1

Did you every find the solution to this? Mine seems to be doing the same thing and its got new exhaust gaskets and problem still there...

Thanks for everyone's help. For continuity of the thread, here's what i did based on the above advice. After an overnight water test and a heat cycle today seems to have worked:- Put a small amount of Jb well high heat on the flat end of a 7mm drill and pressed it into the bottom of the hole...

I see. Appreciate your help.

Great thanks. Can i ask why the new exhaust stud couldn't touch JB weld once its set? Keen to torque the stud down to spec you see...

That's a good idea. A dab of JB weld on the end of the grub screw would also hold the weld in place to cure.

Ok thanks for the info.

Thanks for your response.

Appreciate the detailed response. It's actually one of the exhaust studs on the front of the engine. After a lot of drilling i got the old stud out and re tapped the hole and the new stud fits a treat...but i noticed a tiny trickle of coolant coming out. When inspected closely, where the...

Thanks for that. Makes sense. Yeah ive drained the coolant and used brake cleaner to clean it thoroughly. Maybe a good approach taking gravity into consideration would be to layer up gradually? So dot the tiniest bit in the whole then buld out a few hrs later?

Btw ive fitted the new stud and managed to torque it down to the requirement 20nm and its holds fine...so im guessing my drilling and tapping is sufficient....just the leak to fix i guess...

You mean like a high temp gssket sealant? Would that survive the heat cycles at the exhaust manifold do you think? Guess it would if engine sealant does the same job...

I can see a tiny pin hole right at the bottom of the freshly drilled and tapped hole. Might try a bit of JB weld first as head off is a big job for someone who hasnt done it before. Do you think that would be an engine out job? Appreciate your help.

Thanks. If i went down the jb weld route, guess id have to redrill and tap the hole? Or are you saying just pack the hole and wind in the stud and let it seal and set itself?

Hi experts! Long story short, exhaust stud stuck in engine and drilling out process went a bit off and now a small amount of coolant is leaking out of the freshly drilled hole. 1st question: Im assuming the head now needs replacing? 2nd question: can the head be removed and a new one replaced...