16 replies to this topic

[mini-mad-mark]

My experience from years ago of fitting the oil pump gasket back to front (as you've done) on a new engine resulted in zero oil pressure. As a result, I now always fit the gasket to the block then fit the pump, rather than fit the gasket to the pump first.

Wasn't me, was the engine builder, I just bolted the head onto the block and that onto the box and transfer case but answers my question I think

Edited by mini-mad-mark, 17 January 2025 - 09:19 PM.

[mini-mad-mark]

Arghhh!!!

 

Got everything cleaned up, gallery plugs removed before having the block washed, had crank polished (its been previously balanced and cross drilled, the engine shop doing the work inspected it and pronounced it good)

 

I then re-assembled with new bearings and oil pump (gasket correct way round!) and new oil gallery plugs with a smear of RTV sealant aaaaannnnnddd.......

 

 

Oil gallery plug still leaks at the front and still intermittent oil pressure  -        and other such emotions.

 

 

The first time I spun the engine without plugs to test for oil pressure and leaks I got 45psi reasonably quickly (30 seconds) and didn't see the leak immediately, but then the second time it took absolutely ages to get to 40psi (more than a minute) when I thought it should be more instant once I had oil pressure the first time, and then I found the leak again so I threw down the spanners in a fit of pique and have no real idea where to go now

 

 

So has anyone got any surefire tips for:

 

1) fixing the oil gallery plug leak  - would tapping and fitting a threaded plug be a more certain seal? 

 

2) what could cause intermittent reaching of oil pressure  - I had a centre oil pick up pipe fitted to the gearbox (before the first time I had the problem not since this time) could that cause any problem?