Paradoxia0
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| posted on 18/3/07 at 01:20 PM |
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Rover V8 and no oil pressure - Update!
A brief update on my previous thread for all those interested...
Used the bashed tubing tool as suggested by Mark and it worked a treat. After a few seconds I felt it "tighten up" and the oil light went
out and the gauge gently raised to 30psi where it seemed to stop. Kept the drill going for a bit until I could see oil slowly forming on the rockers
so I know oil ws getting through.
Put the dizzy back in and fired it up again and the gauge lifts to just above 0psi and the light stays on...
Any more suggestions or is this sounding like an engine rebuild is in order? (I really hope not!)
Mark
There is no replacement for displacement...
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flak monkey
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| posted on 18/3/07 at 01:27 PM |
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Is the drive in the bottom of the dizzy engaging properly with the oil pump?
Sera
http://www.motosera.com
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Paul (Notts)
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| posted on 18/3/07 at 01:28 PM |
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seems strange the drill produces oil pressure but not the dizzy drive.
are you sure the dizzy is properly engaged onto the pump tooth. mine is a right pane to line up.
is the female end of the dizzy properly attached to the dizzy so that it does not slip.
Hope its something simple to sort out.
if it is a rebuild I have just finished ( but not fired it up yet ) one and its been the best bit of the build!! Have some tools you may need to
borrow if so.
Paul
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Paradoxia0
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| posted on 18/3/07 at 01:29 PM |
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99% certain it is.
When you go to fit the dizzy it won't go in properly unless you get drive gear lined up with the oil pump drive. (it stops with about an 8mm gap
if the drive and pump are misaligned).
Mark
There is no replacement for displacement...
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wilkingj
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| posted on 18/3/07 at 02:12 PM |
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Sounds like you have the oil primed OK now.
What oil have you got in there?
I use good old 20/50. Forget these modern oils.
eg Duckhams 20/50 or similar, not the 10/40 15/40 modern stuff.
Its a 1950's design engine, and needs ordinary oil, as the tolerances are NOT like modern engines.
EDIT:
Last minute thought...... There are two types of oil pump drive, and require the correct bottom end on the Dizzy to match. A quick look with a torch
down the hole, and at the bottom of the Dizzy will tell you if you have a mismatch.
Also when you get it running have you bled the air from the tube to the oil pressure gauge if its a capillary type?.
This doesnt apply to Electrical sender type oil gauge.
[Edited on 18/3/2007 by wilkingj]
1. The point of a journey is not to arrive.
2. Never take life seriously. Nobody gets out alive anyway.
Best Regards
Geoff
http://www.v8viento.co.uk
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Andy S
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| posted on 18/3/07 at 05:29 PM |
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No need to bleed a capillary - pressure is pressure the air just gets compressed the oil does not- reads just the same.
Bear in mind that the pump is driven 1/2 engine speed - a standard drill does about 2000RPM same as the engine at 4000 RPM- Rover idles at about 750 -
so a drill speed of 375 is needed to recreate it.
The Rover is a low pressure high volume design even with the oil light on there should be masses of oil pouring from the rocker holes.
Do you have a standard or remore oil filter?
Have you checked for air leaks from the oil pick up pipe - any bubbles in the oil from the rocker supply holes
Cheers
Andrew
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mark chandler
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| posted on 18/3/07 at 05:36 PM |
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Sounds like the drive from the diff is duff, if the distributor is not fully down then you have trubs, as its aligned as the engine runs just loosen
the clamp, gently push down on the distibutor and turn the engine over slowly, it will then drop in place.
The drive is merely pinned to the bottom of the distrubutor sheer the pin and loose oil pressure.
Early p6 has a different drive, anything SD1 of later range rovers are all the same.
Regards Mark
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