What kind of oil pressure gauge do I need for a Jaguar?
A good replacement gauge is the 2-inch mechanical gauge made by Smiths for the Sunbeam Tiger, among other vehicles perhaps. The gauge looks like this, and is fairly indistinguishable from the stock Jaguar gauge, save for the numerical readout which goes to 100 on the Sunbeam gauge. Here is a photo of the Jaguar gauge, for sake of comparison.
Why is the oil pressure on my JAG so low?
The conclusion was the most common cause for consistant low oil pressure is a worn relief valve. An adjustment can increase the cold starting pressure but not the hot running pressure. If you remove the relief valve assembly there will be a worn seat possibly worn off centre as well the valve head can show off centre wear.
Is there a replacement oil pressure transmitter for a Jaguar?
Replacement Oil pressure transmitter, 100lb made by the OEM Smiths supplier. Please Note: The original senders for Jaguar were a PT type (PT1811/10). The tooling for the PT senders collapsed irreparably many years ago. It was identified by the supplier they could made and continue to make, a very similar device in the PTR range.
Where is oil filter on 1969 Jaguar E-Type?
Courtesy of Chuck Goolsbee, the following photo shows the parts and their respective part numbers from the McMaster catalogue. The electrical sending unit is located atop the housing for the oil filter, and the fix involves removing the sending unit and fitting the plumbing connections in its place.
What should the oil pressure be in a Jaguar?
Now I have great oil pressure! I have adjusted the pressure relief valve to limit max pressure at about 60 lbs. When the engine is quite warm and running at idle, the pressure will stay above 40 lbs. So, what’s the problem?
Replacement Oil pressure transmitter, 100lb made by the OEM Smiths supplier. Please Note: The original senders for Jaguar were a PT type (PT1811/10). The tooling for the PT senders collapsed irreparably many years ago. It was identified by the supplier they could made and continue to make, a very similar device in the PTR range.
What kind of oil pump does a Jaguar 4.2 L have?
This early engine (before the revision at block G1906) was fitted with an oil pump that is not interchangeable with the later and much more available 140 pumps. So I had my machinist fabricate an adaptor plate to enable the installation of a more modern and much more available pump for 4.2 L engines.
What happens when oil pressure drops below 18psi?
The PTR sender was adapted as far as possible to replicate the PT sender. However, there is a shortcoming in that the sender remains open circuit for anywhere between 12 and 18 percent of full scale. So, with a 100psi gauge and sender, if the oil pressure drops below (worst case) 18psi, the gauge pointer will drop.