Engines > From Kits/Castings

Borderer Piston valve version

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Team ricky:
Thanks for the heads up ;)

Here’s a little more complete!

Two pistons and one rod, pretty standard stuff but took care to get a close fit and a good ring groove !

I went with Vitron o rings mainly due to having good wear properties and heat resistance is good too , I’ll make the second rod and lower cylinder cover glands - after that lot I’ve pretty much got an engine

One problem I have caught is I had made the lower features of the cross head upside down after I had drilled the fixing hole (M3)

So to re- establish that hole on the other side concentric I have ordered the correct ER20 collet , If that fails I’ll make a new one , hopefully won’t need to tho and learning rescue methods is a good thing ;)

Team ricky:
Starting to feel like an engine now ;) I have finished the cross heads and pins and installed the rods and trunks to test!

All spinning over very well indeed

Team ricky:
Side on

Team ricky:
I made the flywheel and tidied the piston valve housings ;)

Also made and fitted the cylinder trunk gaskets and final fit for those too, A little blue locktite on the screws and span everything over and alls good !

The flywheel is a friction fit and a slip fit if i slightly warm it which is perfect, I’ll use a set screw but that won’t misalign anything as it’s such a close fit ……

Weight wise 1600grams at the mo

Kim:
Your engine is really coming along!   :popcorn: :ThumbsUp:

Kim

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