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AlexLandy10

Member Since: 03 Nov 2012
Location: Ipswich
Posts: 15

TD5 Fuel pressure test

hi, is there anyone near by who has devised a way of checking the fuel pressure on a td5 and is willing to lend a hand or tell me how to do it, its the final thing i want to do before visiting a garage. I don't want to just swap the regulator if the problem is elsewhere, symptoms are diesel knock hot or cold, the injector seals have been replaced, nothing showing on diagnostics, regular oil changes, new turbo fitted, fuel pump sounds normal compared to a friends, it has been remapped by j e engineering when i first had it but ran fine, as per my previous posts i did replace the regulator due to leaking and it has knocked ever since the new one was fitted, please help as i've started looking at other cars to replace it.

If at first you don't succeed, hit it harder or get someone else to do it.

15th Nov 2012 7:44pm

landyman37

Member Since: 22 Jan 2012
Location: west midlands
Posts: 153

Did the gauze filter fall out when u changed the reg or has any

got in the fuel system is there any smoke

Phil

15th Nov 2012 9:28pm

AlexLandy10

Member Since: 03 Nov 2012
Location: Ipswich
Posts: 15

i took the gauze filter out to check/clean it, i remember putting it back but it could of fell out i suppose, can i remove the regulator to check and just fit a new gasket and o ring or is it a new regulator aswell, the fuel filter has been changed and it doesnt appear to smoke any worse than any other td5. If at first you don't succeed, hit it harder or get someone else to do it.

15th Nov 2012 10:54pm

davew

Member Since: 02 Jan 2012
Location: North Yorkshire
Posts: 888

1990 Defender 90 V8 Petrol PU Auto Rioja Red

When I first fitted the custom pump/filter system to Pam's I used a standard oil pressure sender/gauge as they are a LOT cheaper than fuel pressure gauges for some reason. Worked well and helped diagnose the problem we were having at the time.

I temporarily fitted an inline T gauge adaptor for it between the pump and the regulator, next to the regulator. http://www.yorkshireoffroadclub.net/

15th Nov 2012 11:25pm

Steve B

Member Since: 22 May 2009
Location: Warwickshire
Posts: 586

Hi Alex,

I made one, used the old prv block pipes and a -6 fitting. The threads were different but close enough with ptfe tape.

http://www.defender2.net/forum/post186485.html#186485

Steve

19th Nov 2012 10:17pm

Steve B

Member Since: 22 May 2009
Location: Warwickshire
Posts: 586

Hi Alex,

I am not sure about a faulty PRV, although if it did start straight after fitting it I would be swapping it for another.

Excessive diesel knock maybe down to fuelling issues? What about running some injector cleaner through the system, do you know anyone with a Nanocom?

Steve

28th Nov 2012 12:57pm

AlexLandy10

Member Since: 03 Nov 2012
Location: Ipswich
Posts: 15

Steve B, good thinking on trying another one, if it makes a difference then great, if not i can always re sell the new one, ive ran injector cleaner through it, its not been on a nanocom, just hawkeye and only faults were things not fitted like ABS and EGR which has long gone. Thinking about it, its only since fitting a new regulator it started so why have i not thought to change it before in case the replacement (genuine) was faulty. If at first you don't succeed, hit it harder or get someone else to do it.

28th Nov 2012 6:46pm

Porny
Site Sponsor

Member Since: 31 Aug 2009
Location: Sutton Coldfield - West Midlands
Posts: 809

Re: TD5 Fuel pressure test

AlexLandy10 wrote:
hi, is there anyone near by who has devised a way of checking the fuel pressure on a td5 and is willing to lend a hand or tell me how to do it, its the final thing i want to do before visiting a garage. I don't want to just swap the regulator if the problem is elsewhere, symptoms are diesel knock hot or cold, the injector seals have been replaced, nothing showing on diagnostics, regular oil changes, new turbo fitted, fuel pump sounds normal compared to a friends, it has been remapped by j e engineering when i first had it but ran fine, as per my previous posts i did replace the regulator due to leaking and it has knocked ever since the new one was fitted, please help as i've started lookig at other cars to replace it.

Yes.... Me

I can plug my pressure gauge in and have a look.

I'm just on the outskirts of Tamworth, so not a million miles away.

Ian IRB
The home of the first modified Keswick Green 90 - and the first 2.4 Puma through both the 200bhp and 550Nm barriers.

www.IRBdevelopments.com

www.facebook.com/irbdevelopments

www.integrated316.com

www.facebook.com/integrated316

28th Nov 2012 7:05pm

AlexLandy10

Member Since: 03 Nov 2012
Location: Ipswich
Posts: 15

i think i might take you up on that offer prior to just trying a new regulator, im sure it would be cheaper to test it first, just need to get of work for a few hours now, hmm If at first you don't succeed, hit it harder or get someone else to do it.

28th Nov 2012 7:55pm

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