MG-Cars.info

Welcome to our Site for MG, Triumph and Austin-Healey Car Information.

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGB GT V8 Factory Originals Technical - Oil press guage/sender

Well, as many of you will be able to tell, I am in the closing stages of my conversion. The mounts are welded on the chassis so, the "small" stuff is being addressed.

I need help with the oil press set-up. I want to keep the stock guage, but the sensor set-up for a stock B is rights side firewall and y engine has the sensor fitting on the front left side. How do you 215 guys hook it up and where is you sending unit on the block?
Larry Embrey

Factory cars have the fitting on the right - at the remote oil filter on early cars, at the oil pump on later. FWIW.

PaulH.
Paul Hunt

Larry,

I asked questions about this a couple of times in the past, so there is more information in the archives.

To elaborate on Paul’s description above, the factory V8s have a rigid pipe near the bulkhead that a hose is clamped to. On the other end of the hose is a second pipe that goes to the oil filter on the early cars or an intermediate pipe that has a second clamped hose that is joins it to a two-inch pipe connected to the oil pump base.

I had a four-foot steel braided hose made to connect from the oil pump base to the pressure sender at the bulkhead. When my hose connections leaked, I questioned this BBS again and someone informed me that some dealers such as the B-Hive sell a five-foot hose for this purpose. Another possibility is to cut the brass pieces off the ten-inch hose to remove the ends and clamp them to a hose. If hose clamps are good enough for the factory cars they should be good enough for conversions, or as I said in the past, at least as a spare.
George Champion

Hrmm. Well I am doing a 302 conversion, but wanted to get an idea of how the 215 is done. Sounds like it is closer to the stock MGB location.

The filter and the pressure sender output are both in front left side of my motor. My idea is to run a hard copper line (easy to get as a kit for aftermarket mechanical tachs and has the fitting for my motor in it) up the front of the motor over the top along the intake manifold and then mount a fitting and use a braided line (similar to a stock 4cyl B) to bridge from motor to firewall.

That sound feasable? any issues besides all the tube bending?
Larry Embrey

Larry,

One other consideration is the different threads used on British and American cars. The steel braided hose I had made has AN fittings that leak where it connects to the oil pump and the oil pressure sender at the firewall. One solution offered to me when I asked about this in the past was to rethread the British parts. Another suggestion was to solder the connectors. One way you could do it is to replace one end of a stock MGB with an AN fitting to join the copper line you make up.
George Champion

You know, I think I use a plastic line last time, all the way from the guage to the engine fitting. Used the original nut for the guage with a new ferrule, and did a similar setup at the other end. Since I have a good bit of 1/8" copper tubing I expect to do the same thing only with copper this time. Btw, thanks George, for the tip about the braided line. Gives me another option.
Jim Blackwood

George,
Good call on that braided line. I think I will buy an MG braided line. That way one end attaches to the stock fitting on the firewall, then the other end can be added using the AN fitting.
Larry Embrey

This thread was discussed between 20/05/2001 and 22/05/2001

MG MGB GT V8 Factory Originals Technical index

This thread is from the archives. Join the live MG MGB GT V8 Factory Originals Technical BBS now