Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Morgan 4/4 1971 Ford Kent oil pressure

Suggestions well accepted ;-)
Thanks to all of you!

Could you suggest me how ro buy a rebuilt exchange engine in UK?
Regards

Try
http://www.thekentlives.com/thekentengine.htm

or:

Burton Power.

The pressure relief valve is built into the oil pump body - I suspect you'll have to take the pump off the car.

Before doing so, is the end cover of the pump flat (smooth) or does it have indentations? If the former, it is the vane type pump and it may be worth changing it for the later rotor (gear) pump.

Unfortunately, I can't find any drawings showing the oil pressure relief valve. I can recommned however: "Rebuilding and Tuning Ford's Kent Crossflow Engine" by Peter and Valerie Wallage, published by Haynes, ISBN 1-85010-938-9 - should be available from Amazon, if only for background information - you don't have to tune your engine

Cheers,

The Haynes manual for the Mk.2 Escort has an exploded diagram for both types of oil pump. I've not got a scanner available at the moment but the manuals are easy to pick up cheaply on eBay.

I knew there had to be one somewhere. In two manuals I have identical pictures, neither of which show the pressure relief valve...
I'll look forward to seing your scanned image (and posibly adding it to one, or both, manuals!).

Cheers,

I'm afraid the best I can do is a photo, but I think you'll get the gist.

Howdy,

Please dont exchange your motor yet!

The oil pressure relief is located in the oil pump housing just forward and below the right hand engine mount. Where the oil filter is mounted.

Troubleshooting:

Air in the line will not cause a low pressure indication. Air will compress at what ever the pressure is. Sort of like the pound of feathers vs. a pound of lead. Its still a pound, in this case 25 pounds.

I would start with another oil pressure gauge. Get a cheap universal oil pressure gauge. Then simply remove one of the oil galley plugs or just use the line from the orginal. The point is to eliminate the possibility of a faulty gauge. It would be crazy to rebuild an engine for no reason.

If the gauge confirms the reading, the next simplest test is to replace the oil pump. Doing this your changing both the pump and the pressure regulator. There are only 3 bolts that hold it on. Again, even if you try a used pump with known pressure you should be OK. The point is to isolate and to be able to reproduce the fault.

When you do this, remember to fill a new filter with oil and to flood the pump as well.

Lastly, if the pressure is still low, I would then remove the oil pan and inspect the main and con-rod bearings. This is easy, but messy because of the oil. You will be able to put eyes on the machined surfaces. It should be obvious if there is a problem.

If you have any questions or I was unclear about something, please, please PM or email me.

Excellent post Leo!

Thanks for the photo tmg513 - I'll be adding that to both my Morgan and Kent manuals...

Cheers,