[TR] Oil Pressure Loss

[davehogye]

Oh, excuse me everyone. I'm mixing TR 4 banger with the 6. I'm not familiar with the 6 design. 

// Dave H. 

----- Original Message -----

From: "david brady" <dmb993 at earthlink.net> 
To: triumphs at autox.team.net 
Sent: Monday, December 26, 2016 12:44:21 PM 
Subject: Re: [TR] Oil Pressure Loss 

Wow, this group is certainly experienced with dumping oil out of live 
engines! I understand it was common practice to do hot engine oil 
changes on irrigation engines. It was to cumbersome to take the engine's 
completely out of service which would require re-priming to get the 
pumps running again; instead, they brought the engines to a slow idle, 
opened a ball valve to drain the sump, spun on a new filter, and 
refilled the sump, then the engine was cranked up to full load. 

I had my self pretty much convinced that even though I dumped three 
quarts out the gauge orifice I never starved the bearings of oil flow. 
Now I'm not so sure. I have an aluminum sump which holds 7 quarts. I 
pumped out three, so now the question is, how deep does the oil pump 
suction inlet go into the sump pan? IOWs, did the oil geyser stop 
because I shut down the engine or did it stop because the oil pump 
started sucking air after pumping three quarts? 

David 
'68 TR250, 
CD8124L 

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