Thread: Discussion Model Diesel Engines
View Single Post
Old Mar 15, 2011, 01:51 PM
Gluehand is online now
Find More Posts by Gluehand
Registered User
Gluehand's Avatar
The windy west coast of Sweden
Joined Sep 2008
3,114 Posts
I just had to check it out....

A few years ago this Irvine Mills 75 was liberated from the attic of a retired hobby dealer who was selling off.....

It is still unused/untouched. The engine has yet to be "de-petrified".....in fact it is "factory petrified", as it was obviously run before leaving Irvine.

A quick ocular check for excentricity tells that...mm...yes, a little...
The hawk-eyed viewer will see that the crankshaft pokes just slightly upwards.

This divergence doesn't feel large enough to worry me though....I guess a thorough check of all old P/B diesels wouldn't leave us too many 100% true examples......in fact, judging by the outline of the casting doesn't tell us too much about the true angular precision - which may well be perfect internally....the eye may be mislead by the rough casting...it's the machining that counts...



Gluehand is online now Find More Posts by Gluehand
Last edited by Gluehand; Mar 15, 2011 at 02:42 PM.
Reply With Quote