Engine rebuild with no former experience........

Hi Jim,

Chapeau, you are doing a great Job.

Hello,

did you got a brake bleeding vacuum bottle?
Valve test with vacuum shows much better if the seat is sealing or not.
You need just a plug or a flat iron/ alloy piece and plug the related channel.

Then you see which seat are good to go which one need more grinding work.

Nevertheless the valve and seats should seal good after the cutting job even before final grinding.

Kind regards

JP

Today I finished lapping the second head, quite a time consuming job.



I then took them up to the motorbike engine builder, very local, only 5 minuets away. He tested them with petrol in the intake runners and exhaust ports, the were a couple of ports with a very tiny slow weep. He said he would not do any further work on them and would be more than happy. He was amazed that the new guides had gone in so well and maintained concentricity. He had expected that the seats would have had to be re-cut, the workshop had a full set of Nuway cutters but he advised not to do it.

He had a very interesting workshop, and was rebuilding a racing engine with titanium valves......

Next I plan to go through the 80 or so plastic bags with parts in them and remove, clean and catalogue all the nuts and bolts and decide which to replace, re-plate or reuse.

Kim getting ready to do some cataloguing.

[img]hhttps://www.racediagnostics.com/gallery/_data/i/upload/2020/12/08/20201208194900-e70e7edd-la.jpg[/img]

This pile will probably be scrapped, may change my mind when I find out the replacement cost.



Parts to be plated.





Parts to be cleaned.





Now for a bit of excel and to check prices here.

www.belmetric.com/88-yellow-zinc-plated-...u9tjr71q50dt072v8f83

Jim, Clean it in Kerosin, bag it and store it away under your work bench.
Rudiger

Hi Jim,

don't send the cylinder head bolts for plating! They are Nickel coated for low friction coefficient!
Otherwise you have a risk of damage the treads in the crankcase.

Regrads Martin