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TR4 puzzler - oil system

To: fot@autox.team.net
Subject: TR4 puzzler - oil system
From: "Jack W. Drews" <vinttr4@geneseo.net>
Date: Thu, 24 Jun 2004 09:33:56 -0500
It seems that when the crank fails, it does so through fatigue, at the 
undercut radius at the rear main. This I understand.

It seems that when a rod fails, it is mostly #2 and / or #3.

What puzzles me about this is that I would think it would be #1, but that 
seldom happens. Why would I think this?

The oil from the pump / filter is piped to the main gallery immediately 
behind the distributor bushing. The bushing bore and the main gallery 
intersect, and the oil pump drive shaft bushing partly blocks the flow to 
main #1. I would think that #1 would have the least flow.

I guess there are some things we mere mortals just aren't meant to understand.

uncle jack 

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