[xj40] Fuel pressure check

XJ40
1

Hi Guys

I’d like to perform a fuel pressure check to determine if my non-return valve at
the fuel pump is hosed, as kitty takes about 7 seconds of cranking to start. I
can’t find this procedure documented anywhere. Is this a quick job?

Thanks
James

1990 XJ40 2.9 SOHC Auto

Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !

2

In reply to a message from James Pattinson sent Wed 18 Feb 2004:

James,

The procedure is well documented in Haynes (Chapter 4 IIRC) but the
specs are for the DOHC engine. I don’t know if they also apply to
the 2.9 SOHC - but probably do.

Here’s a picture of a fuel pressure test kit;-

http://www.jag-lovers.org/snaps/snap_view.php3?id=1076076938

other solutions are described in a post by John Pring in the XJ40
archives.

Don’t forget that your car does not benefit from the priming burst
from the pump every time you turn on the ignition, a nice feature
on the DOHC engines.–
The original message included these comments:

I’d like to perform a fuel pressure check to determine if my non-return valve at
the fuel pump is hosed, as kitty takes about 7 seconds of cranking to start. I
can’t find this procedure documented anywhere. Is this a quick job?

–
Bryan N ('91 Sovereign 4.0 L)
Cambridge, United Kingdom
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !