Ceased to make progress

Number 6 · 27th October 2023, 18:25

Well for the first time in 17 years my 75 ceased to make progress along the road.

It started with a slight loss of power, Then a complete loss, Started again after a bit of a struggle and the the same loss of power when driving no power and would not go over 3 thousand revs when stationary.

Fortunately I was only a short distance from home.

Opening the bonnet with the ignition on the UBP was making all sorts of strange noises,, I disconnected the pipe to the filter and there still a reasonable flow, No froth or bubbles..

I had a spare "Old" pump which I fitted and every thing returned to normal

.

Dont know if it is the Placebo effect but the car seems to run a lot smoother and is more responsive

The pump was the original one so 21 years and 230 K it hadn't done bad.

WillyHeckaslike · 27th October 2023, 19:01

Just curious as I'm not a diesel owner so forgive my ignorance, but if the UBP fails would a good ITP not be sufficient on its own to keep the engine running?

Number 6 · 27th October 2023, 19:31

Quote:

Originally Posted by WillyHeckaslike

Just curious as I'm not a diesel owner so forgive my ignorance, but if the UBP fails would a good ITP not be sufficient on its own to keep the engine running?

No it wont, But if the Intank pump fails the UBP will keep the engine running providing you keep the tank over a 1/4 full.

WillyHeckaslike · 27th October 2023, 22:07

That is interesting. Could it be then the job of the ITP is merely to pump fuel from one side of the saddle tank to the other and from which the UBP maybe pulls fuel from. Hmm?

Number 6 · 28th October 2023, 06:43

Quote:

Originally Posted by WillyHeckaslike

That is interesting. Could it be then the job of the ITP is merely to pump fuel from one side of the saddle tank to the other and from which the UBP maybe pulls fuel from. Hmm?

Yes that is what I believe the purpose of the in tank pump and also to help the UBP with the supply of fuel

Matt_75 · 28th October 2023, 08:21

This thread might help shed some light on the functionality of the fuel system: https://www.the75andztclub.co.uk/for...d.php?t=108535

Mike Noc · 28th October 2023, 08:36

Quote:

Originally Posted by WillyHeckaslike

That is interesting. Could it be then the job of the ITP is merely to pump fuel from one side of the saddle tank to the other and from which the UBP maybe pulls fuel from. Hmm?

Nope - the pick up for the ITP and the return line are both on the same side of the tank.The system was designed to give the correct LP fuel pressure using both pumps The ITP also provides quick self bleeding if you completely run out of fuel.
The Freelander 1 TD4 doesn't have a saddle tank, but it still uses an ITP.

.

Mike Noc · 30th October 2023, 21:56

Quote:

Originally Posted by Number 6

The pump was the original one so 21 years and 230 K it hadn't done bad.

Just checked my records and you did better than me - got 222k out of mine.

Number 6 · 31st October 2023, 07:06

Quote:

Originally Posted by Mike Noc

Just checked my records and you did better than me - got 222k out of mine.

Believe it or not But I am still on the original Track Rod ends. Amazing really

bl52krz · 1st November 2023, 22:30

Same track rod ends on the diesel also. Had to change the ones on the 2.5 Connie at around 109,000 miles.

27th October 2023, 18:25	#1
Number 6 This is my second home Rover 75 tourer Club CD/Limo Tints Join Date: Nov 2008 Location: Meneac Posts: 6,759 Thanks: 5,007 Thanked 1,609 Times in 869 Posts	Ceased to make progress Well for the first time in 17 years my 75 ceased to make progress along the road. It started with a slight loss of power, Then a complete loss, Started again after a bit of a struggle and the the same loss of power when driving no power and would not go over 3 thousand revs when stationary. Fortunately I was only a short distance from home. Opening the bonnet with the ignition on the UBP was making all sorts of strange noises,, I disconnected the pipe to the filter and there still a reasonable flow, No froth or bubbles.. I had a spare "Old" pump which I fitted and every thing returned to normal. Dont know if it is the Placebo effect but the car seems to run a lot smoother and is more responsive The pump was the original one so 21 years and 230 K it hadn't done bad. __________________ ] "I started out with nothing, and Ive still got most of it left!"

28th October 2023, 08:21	#6
Matt_75 Gets stuck in 75 Saloon Join Date: Apr 2022 Location: North Somerset Posts: 574 Thanks: 13 Thanked 20 Times in 8 Posts	This thread might help shed some light on the functionality of the fuel system: https://www.the75andztclub.co.uk/for...d.php?t=108535 __________________ Matt 2001 Rover 75 Connoisseur SE 2.5 (BRG) 1999 Rover 75 Club 2.5 (Dorchester Red) 1973 Triumph Dolomite (Honeysuckle)

1st November 2023, 22:30	#10
bl52krz This is my second home Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008 Location: Birmingham Posts: 11,420 Thanks: 6,587 Thanked 2,262 Times in 1,729 Posts	Same track rod ends on the diesel also. Had to change the ones on the 2.5 Connie at around 109,000 miles. __________________ Great Barr, Birmingham.

27th October 2023, 19:01	#2
WillyHeckaslike This is my second home Rovers 75 & 25 Join Date: Oct 2010 Location: Wearside Posts: 4,536 Thanks: 543 Thanked 709 Times in 511 Posts	Just curious as I'm not a diesel owner so forgive my ignorance, but if the UBP fails would a good ITP not be sufficient on its own to keep the engine running?

27th October 2023, 22:07	#4
WillyHeckaslike This is my second home Rovers 75 & 25 Join Date: Oct 2010 Location: Wearside Posts: 4,536 Thanks: 543 Thanked 709 Times in 511 Posts	That is interesting. Could it be then the job of the ITP is merely to pump fuel from one side of the saddle tank to the other and from which the UBP maybe pulls fuel from. Hmm?