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spike jones
United Kingdom
10 Posts |
 Posted - 14/09/2015 : 17:24:04
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Got a bit of a problem guy's whilst having a play in the dale's lost all oil pressure ... there must have been a little bit left as I have and aux oil pressure light fitted as well and that didn't come on .. limped back home and did all the usual checks I even put a couple of washers behind the oil pump spring .... nothing now even the oil light comes on and that goes out at 4lbpsi .... any ideas
Spike |
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George Eagle
United Kingdom
3238 Posts |
Posted - 14/09/2015 : 17:52:02
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Hello Spike
Welcome to the Triple-M Register, sorry to read you have problems with the J2's oil pressure - you are certain to receive good advice from our many very experienced Triple-M members.
Perhaps the problem lies with the oil pump, could it be the drive has sheared although I doubt this will be the case as you were able to limp home. If it had been the main bearings you would have heard them knocking.
Perhaps the pressure release valve in the oil pump has stuck partly open?
Regards
George
Hon Sec |
Edited by - George Eagle on 14/09/2015 17:53:02 |
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Simon Johnston
United Kingdom
6127 Posts |
Posted - 14/09/2015 : 17:53:33
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After having had my engine expensively rebuilt by one of the 'leading' Triple-M engine specialists I lost oil pressure without warning shortly after taking delivery of the car. Turns out that despite fitting lots of expensive new parts they didn't bother replacing or checking the oil suction pipe from the sump to the pump. (Oddly enough they did replace every other oil pipe!) It had a hairline crack which, once the engine was well warmed up by the drive to Liverpool docks, opened up sufficiently to prevent the pump reliably drawing oil. Worth checking yours I would think.
Simon J
J3437 |
Edited by - Simon Johnston on 14/09/2015 17:55:10 |
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Nick Feakes
USA
3372 Posts |
Posted - 14/09/2015 : 17:57:52
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Spike
Welcome to the Triple M website. Assuming there is oil in the sump? Either the inlet is blocked, the outlet is blocked or there is a major leak (which you would probably have noticed). I would disconnect the outlet pipe from the oil pump and turn the engine over on the starter ( take out the plugs), no oil from there would indicate a blocked strainer in the sump or the pressure control valve stuck open. Oil from there would point to a blocked filter or possibly the internal main bearing feed has failed.
Nick |
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JohnE
United Kingdom
373 Posts |
Posted - 14/09/2015 : 18:05:42
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I think it is quite safe to take the plugs out and turn the engine over on the starter to see how much oil appears at the pressure gauge tap hole. If there is a lot of air in the oil that emerges, it would point to a suction problem. Only other place that oil can disappear to unexpectedly is into the clutch housing via the end plug, but you would know about that by now.
JohnE |
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spike jones
United Kingdom
10 Posts |
Posted - 14/09/2015 : 18:29:26
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| I have stripped the pump fitted new suction pipe removed and cleaned the sump filter .. ???? still no pressure |
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Blue M
United Kingdom
1472 Posts |
Posted - 14/09/2015 : 21:24:56
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| Have you tried another gauge? |
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Peter Green
United Kingdom
1682 Posts |
Posted - 15/09/2015 : 00:05:29
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Ray,
As you have removed the sump, changed the suction pipe and stripped the oil pump, the pump will need priming to enable it to suck oil from the sump - have you done that?
Peter |
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spike jones
United Kingdom
10 Posts |
Posted - 15/09/2015 : 15:25:34
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| Now then Peter I never thought of that ..... How do you prime the pump ??? |
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Peter Green
United Kingdom
1682 Posts |
Posted - 15/09/2015 : 16:35:36
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Ray,
Give me a call on 01753 643468 and I will explain what I do.
Peter |
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George Eagle
United Kingdom
3238 Posts |
Posted - 15/09/2015 : 20:05:25
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I have primed the oil pump by putting the car in gear, taking the plugs out, jacking up the rear and had someone turn the rear wheels backwards whilst I used an oil can to prime the pump.
George
L2023. |
Edited by - George Eagle on 15/09/2015 20:06:05 |
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Richard Hardy
United Kingdom
2159 Posts |
Posted - 20/09/2015 : 13:26:05
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Far far easier way to prime the pump.
Slightly loosed the feed pipe union to the hex head on the strainer. Undo the union on the other end of the pipe, which screws into the top of the pump.
Unhook the pipe out of the top of the pump and swing it down below the oil level in the sump so oil starts to come out of the end. Pop your finger over the end of the pipe, swing it back quickly into position on the pump and tighten the union. Remember then to tighten up the strainer union!
The oil pump is then fully primed to deliver and only takes a couple of mins, working every time. With the other way, it is a far longer faff and you are initially drawing in air for the pump to then start pulling in oil. There is an easier option!
Rich
Vintage MG Parts |
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