Jasonb's latest activity

It has been a while since I posted a build thread here but thought I may as well show one. It all started when I said in another thread...

Make it from rectangular section material, either off the shelf bar or machined down from something larger. Do the holes first while it...

Pocketing the plate keeps the outside looking the same, this is a larger engine so there was room for screws, and like many fill size...

Mill a shallow pocket and J B Weld in a plate that has had the slots cut into it. I'd make the plate from a slice cut off some cast iron...

Try these people which is where I get mine they go down to 1/4" in imperial or 6mm in metriv. Page 88...

The other option is to change the aluminium pistons for iron and then you don't really have to bother to fit any rings. 1000s of glow...

You really want a finely lapped surface to the bore, even a brake cylinder hone leaves things too rough. I would also avoid using most...

There is no manifold mount at the front of the engine. The pipes just have an oval flange to "match" the casting. It's a Twin pipe one...

The single uses a different arrangement to hold the post as the plug is on the opposite side of the head to where the rocker post and...

Most of the hit & miss engines are fairly low compression. I don't have the 1/3rd scale PMD one that I built but it was possible to...

Sid that would probably be an option just have to make sure the counter bore did not break out the lower face particularly if it needs...

Andrew, I think there may be a note on the original Upshur drawings to do what I suggested. EG a stud that stays loctited into the head...

I've seen a few model IC engines built with Hydraulic tube, the pre honed bore can be used as is and is ideal for anything with a long...

Another option may just be to drill the post with a clearance hole Or do as you say adjusting the end until things line up. But I would...

I see two little fishies 1. The thread into the head is quite shallow so you need to make sure you avoid the spark plug thread and also...