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pez
Joined: 04 May 2005
Posts: 68
Location: Hong Kong
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 Posted: Tue Mar 04, 2014 3:55 pm Post subject: Oil Pressure on new build Carrera GT |
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We have engine all together and in car .
Tried to get oil pressure on the starter but would not extinguish oil warning light. I took the sender out and cranked , no oil came out hole.
Started engine for 3 seconds , still no oil out hole. Looks like main bearings are getting oil as assembly paste in oil. Then removed turbo oil feed line from filter housing , attached oil gauge and got over 5 bar. Then shimmed oil pressure relief valve and got 9 bar but still no oil to head !!
Have checked assembly pics , head gasket on correctly.
Only thing I can think now is maybe the raceware studs used are not allowing the oil into the head ?
Any ideas before I pull the engine back out and remove head ?
thx in advance !
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Grenadiers
Joined: 20 Feb 2007
Posts: 3222
Location: Nelson, WI & Prescott, AZ
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| Posted: Wed Mar 05, 2014 2:44 am Post subject: |
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To confirm the confirmation, did you remove the oil filler cap and see if oil was squirting onto the cam lobes?
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Wed Mar 05, 2014 2:59 am Post subject: |
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I wonder if a stuck relief valve (in filter console) would cause this symptom.
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pez
Joined: 04 May 2005
Posts: 68
Location: Hong Kong
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| Posted: Wed Mar 05, 2014 11:09 am Post subject: |
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yes - NO OIL getting to the head.
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vatoisimo
Joined: 31 Aug 2008
Posts: 134
Location: Kent, Wa
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| Posted: Wed Mar 05, 2014 4:09 pm Post subject: |
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I just had this same problem, but my head gasket was in up side down. I was also getting coolant in the oil.  |
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pez
Joined: 04 May 2005
Posts: 68
Location: Hong Kong
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| Posted: Thu Mar 06, 2014 10:45 pm Post subject: |
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yes double checked that with photos taken during the build... all ok gasket on correctly.
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morghen
Joined: 21 Jan 2005
Posts: 9095
Location: Romania
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| Posted: Thu Mar 06, 2014 11:45 pm Post subject: |
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Check oil pump spring/ball thing?
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Fri Mar 07, 2014 1:44 am Post subject: |
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I don't think you would be getting oil pressure at the oil filter console if the OPRV was malfunctioning, but I could be wrong on that. He also indicated they shimmed it, and the pressure shot up to 9 bar.
There has to be something blocking the oil galleries to the head. Did you have the head and the block hot-tanked and flushed before the rebuild?
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Fri Mar 07, 2014 4:09 am Post subject: |
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I was actually wondering about the pressure relief valve in the console.
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Fri Mar 07, 2014 4:49 am Post subject: |
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Yeah, sorry, I was replying to morghen's post.
I checked through FSM but could not find a diagram on how the lubrication system works. I thought there was one floating around.
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morghen
Joined: 21 Jan 2005
Posts: 9095
Location: Romania
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| Posted: Fri Mar 07, 2014 6:09 am Post subject: |
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Might sound stupid but:
-do you have enough oil in it?
-are you loosing the oil somewhere?
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pez
Joined: 04 May 2005
Posts: 68
Location: Hong Kong
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| Posted: Wed Mar 12, 2014 2:07 pm Post subject: |
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yes there is enough oil & not losing any.
All oil ways cleaned out prior to build.
Looks we'll have to strip it down again to find what the issue is......
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MikeDanger
Joined: 21 Nov 2002
Posts: 774
Location: Denver
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| Posted: Sat Apr 05, 2014 2:54 pm Post subject: |
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How much did you shim the relief valve?
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PanamaCarrera
Joined: 13 Mar 2012
Posts: 81
Location: Southport, UK
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| Posted: Wed Jul 30, 2014 8:57 pm Post subject: |
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Pez, did you resolve this? What was the solution?
Regards
Nigel
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pez
Joined: 04 May 2005
Posts: 68
Location: Hong Kong
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| Posted: Fri Aug 22, 2014 12:46 am Post subject: |
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yes.... solved. Meant to post ages ago....
Believe it or not whilst sat in the garage have been fully cleaned out a wasp decided to build a nest on an oil way - don't upi just love nature.
She's now running great.
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