Help! - Oil pressure drops to zero at idle
09-13-2005, 05:43 PM
#17
Intermediate
Join Date: Sep 2005
Location: Somerset UK
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Ohh thank ***! I is doubtful that there would be any damage from that.
Just as another source of knowledge try the Q and A on the JZ Machtec site
http://www.jzmachtech.com/html/frame..._frameset.html
Just as another source of knowledge try the Q and A on the JZ Machtec site
http://www.jzmachtech.com/html/frame..._frameset.html
10-13-2005, 03:38 PM
#20
Burning Brakes
Thread Starter
An Update!
Well its been a while since my last post and I thought i'd update you good folks on the state of my engine. After testing out everything i could think of, or should i say porsche specialists could think of, regarding my low oil pressure at idle problem - like the pressure relief valve & the oil pressure sender it seems i probably have internal oil leaks. I changed the oil pressure sender myself and rather depressingly when i fired it up for the first time it read exactly as it did before.
The car was still fine to drive and still went well, until one day a couple of weeks ago when i fired it up and.....it rattled - exactly what everyone said a big end sounds like! It was a pretty nasty sound so i turned it off again. After a few nervous moments I fired it again to make sure i wasnt hearing things and it was still there. So i think the big end bearing could be knackered. I'm not going to start it again until its been looked at, and that really means the lump has to be taken apart, which pretty much means being rebuilt - top and bottom.
So, i've been ringing around and emailing everybody with a good rep to get quotes and info etc. I have a spreadsheet of quotes for the work from at least 10 companies (if anyone fancies a look - pm me) and they are all fairly similar except for one place that wanted £9k!
Anyway after much thought i've decided to take the car to Colin Belton at 9M up in cheshire - its going the weekend after next. If it is necessary and not something simple that he can solve, I'm going for a standard rebuild with a few of Colins personal touches and a rolling road remap which with luck should see me right for a nice increase from the standard power.
Lets just hope the crank is in good shape!!
The car was still fine to drive and still went well, until one day a couple of weeks ago when i fired it up and.....it rattled - exactly what everyone said a big end sounds like! It was a pretty nasty sound so i turned it off again. After a few nervous moments I fired it again to make sure i wasnt hearing things and it was still there. So i think the big end bearing could be knackered. I'm not going to start it again until its been looked at, and that really means the lump has to be taken apart, which pretty much means being rebuilt - top and bottom.
So, i've been ringing around and emailing everybody with a good rep to get quotes and info etc. I have a spreadsheet of quotes for the work from at least 10 companies (if anyone fancies a look - pm me) and they are all fairly similar except for one place that wanted £9k!
Anyway after much thought i've decided to take the car to Colin Belton at 9M up in cheshire - its going the weekend after next. If it is necessary and not something simple that he can solve, I'm going for a standard rebuild with a few of Colins personal touches and a rolling road remap which with luck should see me right for a nice increase from the standard power.
Lets just hope the crank is in good shape!!
10-13-2005, 03:47 PM
#21
Burning Brakes
Join Date: Jun 2005
Location: Spokane, WA in the USA
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Unfortanate that a rebuild is required. However I envy having the choice of Colin at 9Meister. I don't think you can go wrong.
Good luck, can't wait see the dyno runs afterwards.
Good luck, can't wait see the dyno runs afterwards.
10-14-2005, 05:27 AM
#22
Burning Brakes
Thread Starter
Originally Posted by C4Russ
Unfortanate that a rebuild is required. However I envy having the choice of Colin at 9Meister. I don't think you can go wrong.
Originally Posted by C4Russ
Good luck, can't wait see the dyno runs afterwards.
10-14-2005, 06:22 AM
#23
Racer
Join Date: Nov 2002
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Hi Greg,
I'd be interested to see your list of quotes. Mine's booked in to Jaz in a couple of weeks for a rebuild, mainly to fix the oil leaks (used 2 litres at the Total911 trackday at Goodwood last week) - they're also doing a few minor internal mods such as polishing and so on, and a re-map.
I'd be interested to see your list of quotes. Mine's booked in to Jaz in a couple of weeks for a rebuild, mainly to fix the oil leaks (used 2 litres at the Total911 trackday at Goodwood last week) - they're also doing a few minor internal mods such as polishing and so on, and a re-map.
10-14-2005, 07:11 AM
#25
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I finished the running in period following my rebuild about 3 weeks ago, and i have to say that a 100% functioning engine is marvellous. It does ease the pain of the spend a bit - absolutely cracking!
10-14-2005, 07:28 AM
#26
Blimey - it won't be long before everyone who's a regular at the S.E UK Rennlist meets will have had a re-build!! Hope it's not catching!
10-14-2005, 08:10 AM
#28
True - I can't disagree with any of those points. The real question is : if I did face one of these engine failures, would I rather have the £6K - £7K staying in the bank, or would I be happy to spend it fixing the car?
I have a feeling I'd rather the money stayed in the bank. We'll see - my opinion may be different by next summer and I'm not planning to sell it at the moment.
I have a feeling I'd rather the money stayed in the bank. We'll see - my opinion may be different by next summer and I'm not planning to sell it at the moment.
10-14-2005, 11:48 AM
#29
Burning Brakes
Thread Starter
Dave, unless the crank is knackered the lowest quote i had from a decent specialist for a standard top and bottom rebuild was £3k+vat. Colin is £4k+vat. I was considering a rolling road remap from him too for a further £500+vat. But after explaining exactly what i'm upto to the missis yesterday, that might now have to wait...