LOW OIL PRESSURE ,,WHERES IT GOING???
09-01-2008, 02:27 PM
#1
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LOW OIL PRESSURE ,,WHERES IT GOING???
got problem with a cossie having low oil pressure (0@ idle-15 psi @ 3000rpm) so we took off the sump all looked mint replaced bearings and pump anyway but still very little pressure.
removed cam cover and stripped out dizzy and run pump up with a drill and no noticeable oil coming to tappets.
this is checked with the cars own gauge and a proper mechanical test gauage
i know the front left head stud hole is used to carry the oil to the head thought maybe this was leaking but doesn't appear to be
This Engine Has Been Dynoed And Done Miles So It Was Fine When Built
just wondreing if anyone else has had this experiance??
removed cam cover and stripped out dizzy and run pump up with a drill and no noticeable oil coming to tappets.
this is checked with the cars own gauge and a proper mechanical test gauage
i know the front left head stud hole is used to carry the oil to the head thought maybe this was leaking but doesn't appear to be
This Engine Has Been Dynoed And Done Miles So It Was Fine When Built
just wondreing if anyone else has had this experiance??
09-01-2008, 02:33 PM
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Got the same problem with my old engine buddy, cars not tappy, bottom end not knocking, apparently rebuilt 6K ago, bought it off here, at idle 2psi, at 2K 15psi and 22psi @ 3000rpm.
Sounded good
Took the engine out and fitted a spare, it still on my engine stand. dont know what to do with it.
Sounded good
Took the engine out and fitted a spare, it still on my engine stand. dont know what to do with it.
09-01-2008, 03:12 PM
#7
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Originally Posted by Stu @ M Developments
Maybe oil blanking cap blown out behind the auxilliary drive cover.
Seen that before.
Seen that before.
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09-01-2008, 03:13 PM
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could it be a blockage in a oil gallery.try testing the pressure from the cylinder head oil gallery plug, is the oil pump drive rod worn,seen loads of these rounded off,or fitted upside down,long side goes towards the dizzy.
09-01-2008, 03:35 PM
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andrewg
As the Cossie has a simple oil system it can only be a couple of things,
Stock oil cooler? what was the oil pressure on the dyno?
Check bigends for wear,check to make sure the oil pickup gasket is sealing, Check the oil pump clearance to block to make sure there is none as this is the most common fault I see with oil pressure.
Mark
As the Cossie has a simple oil system it can only be a couple of things,
Stock oil cooler? what was the oil pressure on the dyno?
Check bigends for wear,check to make sure the oil pickup gasket is sealing, Check the oil pump clearance to block to make sure there is none as this is the most common fault I see with oil pressure.
Mark
09-01-2008, 03:45 PM
#10
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Originally Posted by lloyd
could it be a blockage in a oil gallery.try testing the pressure from the cylinder head oil gallery plug, is the oil pump drive rod worn,seen loads of these rounded off,or fitted upside down,long side goes towards the dizzy.
think it could be this blanking core plug.
09-01-2008, 03:50 PM
#11
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Originally Posted by Mark Shead
andrewg
As the Cossie has a simple oil system it can only be a couple of things,
Stock oil cooler? what was the oil pressure on the dyno?
Check bigends for wear,check to make sure the oil pickup gasket is sealing, Check the oil pump clearance to block to make sure there is none as this is the most common fault I see with oil pressure.
Mark
As the Cossie has a simple oil system it can only be a couple of things,
Stock oil cooler? what was the oil pressure on the dyno?
Check bigends for wear,check to make sure the oil pickup gasket is sealing, Check the oil pump clearance to block to make sure there is none as this is the most common fault I see with oil pressure.
Mark
09-01-2008, 04:17 PM
#12
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Originally Posted by andrewg
Originally Posted by Mark Shead
andrewg
As the Cossie has a simple oil system it can only be a couple of things,
Stock oil cooler? what was the oil pressure on the dyno?
Check bigends for wear,check to make sure the oil pickup gasket is sealing, Check the oil pump clearance to block to make sure there is none as this is the most common fault I see with oil pressure.
Mark
As the Cossie has a simple oil system it can only be a couple of things,
Stock oil cooler? what was the oil pressure on the dyno?
Check bigends for wear,check to make sure the oil pickup gasket is sealing, Check the oil pump clearance to block to make sure there is none as this is the most common fault I see with oil pressure.
Mark
What about the pump to block you couldnt have put that much oil in it.
Mark
09-01-2008, 04:21 PM
#13
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Originally Posted by Stu @ M Developments
Maybe oil blanking cap blown out behind the auxilliary drive cover.
Seen that before.
Seen that before.
SORTED IT WAS THIS THANKS
09-01-2008, 04:27 PM
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Originally Posted by andrewg
Originally Posted by Stu @ M Developments
Maybe oil blanking cap blown out behind the auxilliary drive cover.
Seen that before.
Seen that before.
SORTED IT WAS THIS THANKS
10-01-2008, 08:29 AM
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Originally Posted by andrewg
Originally Posted by Stu @ M Developments
Maybe oil blanking cap blown out behind the auxilliary drive cover.
Seen that before.
Seen that before.
SORTED IT WAS THIS THANKS
Think that deserves a hot lap or 2 in the new Focus I reckon
What a beast thats gonna be
10-01-2008, 09:56 AM
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Originally Posted by the youth
I know where the aux drive cover is (alloy plate 3 bolts) but whats this blanking plug, anyone got a pic?
And where does the oil go if it comes out of this hole?
well done stu BTW
steve
And where does the oil go if it comes out of this hole?
well done stu BTW
steve
Great job Stu.
10-01-2008, 10:15 AM
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Originally Posted by andrewg
Originally Posted by Stu @ M Developments
Maybe oil blanking cap blown out behind the auxilliary drive cover.
Seen that before.
Seen that before.
SORTED IT WAS THIS THANKS
29-08-2015, 12:48 PM
#28
Does anyone have a picture of the offending item behind the auxiliary pulley ?
I've lost 10 psi oil pressure, and want to investigate if this is starting to fail.
I have high pressure oil pump and now is giving when hot:
18 psi at idle
55 psi when running higher rpm
Thanks
I've lost 10 psi oil pressure, and want to investigate if this is starting to fail.
I have high pressure oil pump and now is giving when hot:
18 psi at idle
55 psi when running higher rpm
Thanks
29-08-2015, 09:54 PM
#29
This recently happens to me ridgy I only had 5 psi of oil pressure even when revving engine, I'd imagine yours would be fine if only lost 10 psi, you don't get any oil to the top end when this pops out so top end gets damaged pretty quick!
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30-08-2015, 09:31 AM
#32
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Unfortunately the picture isn't displayed now, I'd like to investigate this aswell chaps.
Let's hope you don't get flamed for bringing this thread back you did the right thing mate I haven't heard of this cap problem before. Well done stu at MSD top bloke!
Let's hope you don't get flamed for bringing this thread back you did the right thing mate I haven't heard of this cap problem before. Well done stu at MSD top bloke!
01-09-2015, 01:49 PM
#37
Can't see it being the plug with that pressure you lose oil feed to the top end also so engine wouldn't run for long before it would get damaged. Small possibility it's got a small hole but more than likely a weak spring in oil pump I'd take a guess at.
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