Arghhh! No oil pressure AGAIN.

Arghhh! No oil pressure AGAIN.

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Discussion

Boosted LS1

21,187 posts

260 months

Sunday 23rd July 2017
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^ Stevie, I had a problem once with the oil seal on the pickup pipe either not seating properly or being a bit to squidgy. It caused erratic oil pressure readings as well as a failure of oil pressure. It was a real ball ache but the conclusion was obvious for that engine. Hence why I asked above if the seal and pipe etc were as supplied by Partsworld. Logically it would seem that the fault was common to both engines. So were any parts common to both?

stevieturbo

17,262 posts

247 months

Sunday 23rd July 2017
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Very possible

Although I thought most crate motors of that type came with sump intact ? if this was changed, pickup pipe changed...there could well be a problem in that area.

And changing parts like that too....could well have a negative effect on any warranty

two identical failures on completely different and standard engines....just seem impossible to blame on the actual engine itself as it really would be beyond unlucky.

globalfish

Original Poster:

394 posts

97 months

Monday 24th July 2017
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robbyd said:
Hopefully if it's a daily driver then 4k miles would be well within a year and some sort of manufactrurer's warranty will apply....
I would hope so, it's only been in the car for two months! It was off the road for a month+ waiting for a new motor, had it back on the road for about two months and looks like it'll be off the road another month again now.

globalfish

Original Poster:

394 posts

97 months

Monday 24th July 2017
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stevieturbo said:
Very possible

Although I thought most crate motors of that type came with sump intact ? if this was changed, pickup pipe changed...there could well be a problem in that area.

And changing parts like that too....could well have a negative effect on any warranty

two identical failures on completely different and standard engines....just seem impossible to blame on the actual engine itself as it really would be beyond unlucky.
I believe engine had sump etc already fitted as Roger seemed to think that would have manifested itself prior to now.
On the original engine, i did 23k trouble-free miles last year before it died. I've been extra cautious with this one, if the oil got too warm, i'd drive it gently until it dropped back down before heading home. It ran a little warmer but that's to be expected i imagine as it'll still be tight. Oil change was done and i was going to do another at 5k just to err on the side of caution but it didn't even get that far!

Boosted LS1

21,187 posts

260 months

Monday 24th July 2017
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OP, did the PW engine come with a monaro sump and oil pick tube already fitted? Plug and play? If not then as I suggested above I'd suggest your issues are where components have been shared between both engines. Oil pick up pipe and pick up 'o' misaligned or squidgy seal spring to mind. It happened to me once. I've learnt with hindsight to always fit a new seal on the pick up pipe and align it properly. They only cost 20p and save such a lot of agro.

Edited by Boosted LS1 on Monday 24th July 23:20

globalfish

Original Poster:

394 posts

97 months

Tuesday 25th July 2017
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Boosted LS1 said:
OP, did the PW engine come with a monaro sump and oil pick tube already fitted? Plug and play? If not then as I suggested above I'd suggest your issues are where components have been shared between both engines. Oil pick up pipe and pick up 'o' misaligned or squidgy seal spring to mind. It happened to me once. I've learnt with hindsight to always fit a new seal on the pick up pipe and align it properly. They only cost 20p and save such a lot of agro.

Edited by Boosted LS1 on Monday 24th July 23:20
As far as I can make out from my conversations with Roger; the sump/oil pick-up was already attached. Monkfish did the work and I've faith in them and they are well aware of the 'O' ring issue, the oil pump relief valve and a couple of other issues I'd not previously read about. They wouldn't be approaching PW if it was their error.

Boosted LS1

21,187 posts

260 months

Tuesday 25th July 2017
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It'll be interesting to hear what it is because things like this can be really frustrating and not always obvious. Like I said, it happened to me once and i was kicking myself afterwards.

Oh, just had a thought. Do you have any external oil lines, oil cooler?

Edited by Boosted LS1 on Tuesday 25th July 08:53

stevieturbo

17,262 posts

247 months

Tuesday 25th July 2017
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globalfish said:
As far as I can make out from my conversations with Roger; the sump/oil pick-up was already attached. Monkfish did the work and I've faith in them and they are well aware of the 'O' ring issue, the oil pump relief valve and a couple of other issues I'd not previously read about. They wouldn't be approaching PW if it was their error.
They need to be aware of the cause before they can appoint error. PWP may want the engine returned back to them untouched so they can have someone inspect for possible cause. If others have already tampered with the engine, it would be quite reasonable for them to refuse any warranty.

ARAF

20,759 posts

223 months

Tuesday 25th July 2017
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stevieturbo said:
globalfish said:
As far as I can make out from my conversations with Roger; the sump/oil pick-up was already attached. Monkfish did the work and I've faith in them and they are well aware of the 'O' ring issue, the oil pump relief valve and a couple of other issues I'd not previously read about. They wouldn't be approaching PW if it was their error.
They need to be aware of the cause before they can appoint error. PWP may want the engine returned back to them untouched so they can have someone inspect for possible cause. If others have already tampered with the engine, it would be quite reasonable for them to refuse any warranty.
It sounds like they are asking for instruction as to how PWP want to proceed, rather than just pointing the finger.

This really is a nightmare.

JohnnieVXR

67 posts

162 months

Tuesday 25th July 2017
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Had a very very similar issue recently on my LS3 engined E3.

Turned out to be the oil pressure relief valve stuck open. Its incorporated in the oilpump. Had VX fit a new one (ex Monkfish via Walkies). No damage done thankfully. Lifetime warranty vehicle and engine done 29,000 miles at 4.5 yrs old.

globalfish

Original Poster:

394 posts

97 months

Tuesday 25th July 2017
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JohnnieVXR said:
Had a very very similar issue recently on my LS3 engined E3.

Turned out to be the oil pressure relief valve stuck open. Its incorporated in the oilpump. Had VX fit a new one (ex Monkfish via Walkies). No damage done thankfully. Lifetime warranty vehicle and engine done 29,000 miles at 4.5 yrs old.
That relief valve issue has affected around 15 variations of GM engines and been going on for years - really needs a solution - I've read of new cars having the issue after just 2k miles in the US.

stevieturbo

17,262 posts

247 months

Tuesday 25th July 2017
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If the relief valve has stuck, it would be a very simple fix ( engine out though...or at least oil pump removed ) and if you shut if off in time, once fixed you should be good to go.

globalfish

Original Poster:

394 posts

97 months

Wednesday 26th July 2017
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stevieturbo said:
If the relief valve has stuck, it would be a very simple fix ( engine out though...or at least oil pump removed ) and if you shut if off in time, once fixed you should be good to go.
Well stevieturbo, it seems I was unlucky to have a pump go again. I spoke to Roger earlier today and he has swapped the pump and full pressure has been restored, appears damage-free so hopefully have it back soon after he's completed testing it. Phew, I really struggle without the VXR8 about, was dreading a month without it.

Boosted LS1

21,187 posts

260 months

Wednesday 26th July 2017
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Well that is good news :-)

stevieturbo

17,262 posts

247 months

Thursday 27th July 2017
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globalfish said:
Well stevieturbo, it seems I was unlucky to have a pump go again. I spoke to Roger earlier today and he has swapped the pump and full pressure has been restored, appears damage-free so hopefully have it back soon after he's completed testing it. Phew, I really struggle without the VXR8 about, was dreading a month without it.
Good stuff, hopefully the pulled the relief valve out of the new pup and ensured it was totally free to move etc.

And well done for stopping too, because many would have driven on until real disaster !

You hear of relief valves sticking on many engines over the years, of all makes, but it's something I've only ever personally seen once on a Subaru engine...which in itself must be a rarity too !

But always good practise when building an engine to pull the pump apart and inspect....even if you really shouldnt need to such as in a new crate engine !

ARAF

20,759 posts

223 months

Thursday 27th July 2017
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Good to hear that you're on the road again soon and well done for stopping as soon as you had a problem. cool

globalfish

Original Poster:

394 posts

97 months

Wednesday 2nd August 2017
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ARAF said:
Good to hear that you're on the road again soon and well done for stopping as soon as you had a problem. cool
All running sweet. Thanks goes out to Monkfish for sorting that out.