Moved on to the timing cover today, the crank seal retainer had been torn off at some stage leaving the rivets behind:
,
They'll all have to come out as they are only really sealing with the paint, they are all sitting proud on the inside of the cover:
The parts book show small screws hold in the seal retainer, but these don't look like they can be used in place of the rivets, the screw diameter is the same as the rivet hole diameter. Not sure if I am going to try and find some replacement rivets, or thread the holes and use small screws.
All the threads in the head got chased with various sized taps, quite a time consuming job, but judging by the amount of rubbish it removes, well worth it.
The top left manifold thread has been stripped at some stage, so that will need to be "helicoiled". This is a bugger because I was hoping to fit the head today, but I don't want to do this around the rest of the engine while it is being built. Last thing I need is some stray metal getting inside!
Another job that needed doing on the head was fitting the screw in core plug. The first thread had been peened over at some stage making it impossible to thread the new plug in. So some very careful die grinding was in order to tidy up the first thread.
And, core plug in:
I knew the exhaust manifold needed some work, it certainly looks to be in a sorry state!
It got a quick sand blast, more to make handling less messy than anything! The exhaust tube flange revealed a trifecta of sadness, one stripped thread, one broken stud, and one siezed stud!
On closer inspection there is a crack either side of the stripped threaded hole, so I'm on the lookout for a replacement manifold. I'm a bit undecided on whether to fit extractors or not, so any info from the community on that front would be greatly appreciated!
Cheers,


 
					
					 Originally Posted by TimNZ
 Originally Posted by TimNZ
					

 
				
				
				
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