Steve P Posted April 18, 2011 Report Share Posted April 18, 2011 Evening all, I would like to test the fuel pressure so I'm after a suitable guage and fittings. Can anyone suggest a good source. Cheers Steve Quote Link to post Share on other sites
johnny250 Posted April 18, 2011 Report Share Posted April 18, 2011 Evening all, I would like to test the fuel pressure so I'm after a suitable guage and fittings. Can anyone suggest a good source. Cheers Steve These are very quick = good...(on ebay too) Just used glycerine filled ones for O/D pressure checking http://stores.ebay.co.uk/Harrier-Fluid-Power-Ltd?_trksid=p4340.l2563 john Quote Link to post Share on other sites
badshead Posted April 18, 2011 Report Share Posted April 18, 2011 Steve Hydrotechnik are good, go for the minimess 1620 test point and microbore hose. http://www.hydrotechnik.co.uk/catalog/hydrotechnik Quote Link to post Share on other sites
Steve P Posted April 18, 2011 Author Report Share Posted April 18, 2011 Thanks lads, have gone for the ebay one. Cheers Steve Quote Link to post Share on other sites
john.r.davies Posted April 18, 2011 Report Share Posted April 18, 2011 Too late for Steve, but a cheap oil pressure gauge (£30? Unless you use a spare OE one, in which case, free) makes a good fuel pressure testing gauge. I wouldn't fit it to the dash. Such a gauge needs to be damped, that's why the pukka gauges are oil filled. Otherwise the pulsations from the pump cause the needle to wildly oscillate, and can oscillate it right off the shaft! But there are more ways of damping than filling with oil. The gauge must have a connector hose - I use a length of Aeroquip, but something else would do, if it'll stand 100psi. Make a disc with a VERY small hole in it, that will fit into junction of the hose and gauge. I used a piece of copper central heating pipe, opened out, hammered flat and then annealed. From that I cut a disc to fit inside the connection, and drilled a hole in the centre of the disc. I used a 1mm bit in a hand drill, working from both sides until I could see a chink of light through the disc. My oil/fuel pressure gauge now has the slightest tremor, and gives a consistent reading. But, no, I haven't had it calibrated! John Quote Link to post Share on other sites
88V8 Posted April 18, 2011 Report Share Posted April 18, 2011 Too late for Steve, but a cheap oil pressure gauge (£30? Unless you use a spare OE one, in which case, free) makes a good fuel pressure testing gauge. ....., no, I haven't had it calibrated! It's presumably reading at the top of its range, so unlikely to be very accurate, if indeed it is accurate anywhere. Difference between 105psi and 110psi would not help the metering shuttle, so I wouldn't use it for setting the PRV, but as a permanent underbonnet installation for trouble shooting, a jolly good idea. Ivor Quote Link to post Share on other sites
john.r.davies Posted April 18, 2011 Report Share Posted April 18, 2011 (edited) Just now looked at the ebay link above. Is this the one? http://cgi.ebay.co.uk/63mm-Hydraulic-Pressure-Gauge-Base-Entry-0-160-PSI-/250806406678?pt=UK_Diagnostic_Tools_Equipment&hash=item3a653a0e16 SIX POUNDS FORTY SEVEN PENCE!!! Stuff the oil pressure gauge idea - I'm getting one of those next time! Hydrotech are coy about their prices, but I'll bet you can add a nought to the above! Hence the OPG. Ivor, I had the sense to seek out a gauge that reads from 0-160psi. So in the middle of its range at least, and would a posh Hydrotech gauge keep its calibration long? John Edited April 18, 2011 by john.r.davies Quote Link to post Share on other sites
johnny250 Posted April 19, 2011 Report Share Posted April 19, 2011 Yes excellent value and service...I don't know how accurate they are but got a 1000 and a 600 PSI version and they both agree with each other exactly for my O/D pressure. john Quote Link to post Share on other sites
badshead Posted April 19, 2011 Report Share Posted April 19, 2011 Hydrotech are coy about their prices, but I'll bet you can add a nought to the above! Hence the OPG. Not so, gauge is about £8 and you just have to ask as they'll tailor the price to volume required. No connection. Quote Link to post Share on other sites
PIAA Posted April 19, 2011 Report Share Posted April 19, 2011 I've got one from http://www.cotswoldengineeringsupplies.co.uk/ Oil filled, looks a bit like the one on ebay. Left the adaptor mounted in the car so it's easy to check pressure any time. Price was 11,25£ last year. Part number PG63-SMF-160-B14. PIAA Quote Link to post Share on other sites
Steve P Posted April 20, 2011 Author Report Share Posted April 20, 2011 Evening all, The guage arrived today so took the pressure at the fuel pump. I know that the place to take the pressure is at the MU but I dont have the bits to fit the guage there. Anyhow pressure at the pump is 110psi. The BBB (Big Brown Book) states 100 to 110psi at the MU. So assuming the PSV is set right what is the likely pressure drop from the pump to MU? Cheers Steve Quote Link to post Share on other sites
RobinTR6 Posted April 21, 2011 Report Share Posted April 21, 2011 I assume if youre measuring at the pump then you are the pump side of the PRV. The reason for measuring at the MU is to ensure that the pump and the PRV together are producing 100/110 PSI. I lay my hands on the bits to test at the MU tobe sure its getting the correct pressure. Regards robin Quote Link to post Share on other sites
badshead Posted April 21, 2011 Report Share Posted April 21, 2011 Evening all, The guage arrived today so took the pressure at the fuel pump. I know that the place to take the pressure is at the MU but I dont have the bits to fit the guage there. Anyhow pressure at the pump is 110psi. The BBB (Big Brown Book) states 100 to 110psi at the MU. So assuming the PSV is set right what is the likely pressure drop from the pump to MU? Cheers Steve Steve Spend a few more £ and do the job properly by checking it at the MU. Quote Link to post Share on other sites
Steve P Posted April 21, 2011 Author Report Share Posted April 21, 2011 Robin / Badshead, You are right of course. Can anyone point me in the right direction to procure the fitting for the MU inlet. Cheers Steve Quote Link to post Share on other sites
JustinF Posted March 31, 2016 Report Share Posted March 31, 2016 (edited) Hi all I have just followed the advice given by various people on this forum and ordered up the following parts from Hydrotechnik for the fuel pressure gauge. Pressure gauge: 0-160psi, 63mm dia.1/4"BSP bottom entry #9801-160.Test point Tee 3/8" BSP (goes permanently bettween metering unit and input flexible) #SNA02Hose assy microbore 1000mm long #S100-AC-FA-01.00 http://www.hydrotech...co.uk/index.htm The company were very easy to deal with and on mentioning that they had been reconmended by members from the TR register forum I was given a 25% discount on the parts which came to a total of £55.87 including VAT and next day delivery . So I just wanted to say a big thank you to all the forum members for there advice and to pass on a bit more useful information to anyone contemplating getting a fuel pressure testing gauge and connection point. I will be in the garage this weekend fitting the parts and testing the fuel pressure. Regards Justin Edited May 4, 2016 by JustinF Quote Link to post Share on other sites
john.r.davies Posted March 31, 2016 Report Share Posted March 31, 2016 Many industrial estates will include a Hydraulics firm. Take the hoses you ant to connect to along and ask for a T-piece to suit. I expect they will oblige. It's always useful to build up a list of local suppliers, as they can offer free advice as well, when a mail order company won't. And, you support your local industry - they need it! John Quote Link to post Share on other sites
John Bracher Posted March 31, 2016 Report Share Posted March 31, 2016 Steve, I got my adaptor (and a blanking plug) from Think Automotive http://www.thinkauto.com/ From memory, they cost me about £10, and arrived in 2 days. There are a lot of 'fuel testing points' available, so tell them what you need, they are genuinely interested in helping! Quote Link to post Share on other sites
Steves_TR6 Posted March 31, 2016 Report Share Posted March 31, 2016 Steve, I got my adaptor (and a blanking plug) from Think Automotive http://www.thinkauto.com/ From memory, they cost me about £10, and arrived in 2 days. There are a lot of 'fuel testing points' available, so tell them what you need, they are genuinely interested in helping! Think Automotive are very helpful. A few years ago they made me up a set of braided lines while I waited.... I just took in two pieces of string cut to length and example end fittings. 30 minutes later I had beautiful new lines for a very reasonable cost. On another occasion they supplied an oil cooler kit for a very reasonable price. Recommended by me! Steve Quote Link to post Share on other sites
6TR Posted January 7 Report Share Posted January 7 Has anyone tried this one? https://www.ebay.co.uk/itm/126217283288?hash=item1d6322e6d8:g:x9kAAOSwud5inFiP&amdata=enc%3AAQAIAAAA0Jw7ZTQChqQ8CCQy%2BHo3r2aTtBIzkhs9K9R3uwf0JfKfzhrQr3G0CTBzt3%2Be9qn44be3bEqv3Kv8HNkI2vPMJYd85wnd%2FYuRI4%2FzoyMTCQ464RdkAjhCBhF8KvsFl49Ysh%2BN9Je9o9MFifS0Z4K7h5rUxYR9nPDeTMk59Bp4ezRWkbpQo1tDsJyliovrhoOAp49dL6X4BYOJWDn3C2PwQYf9YQSZa90DFzSYEwlwgweShuMcb2WXNvDxGNQUD46xmiurunRxz5EvMRPJ8tCSAs0%3D|tkp%3ABk9SR4i567KcYw Quote Link to post Share on other sites
FatJon Posted January 7 Report Share Posted January 7 An electronic one with a remote sensor is better for a permanent fit. I would always want to avoid a hose full of fuel at 110psi behind the dash. Quote Link to post Share on other sites
john.r.davies Posted January 7 Report Share Posted January 7 I've replied to 6TR in an other thread (duplicate posting - tt!) suggesting this: LED OIL / FUEL Digital Display Pressure Gauge 0-120PSI with sensor 1/8 NPT | eBay which I used to check on my electronic dash gauge from Glowshift: GlowShift 10 Color Digital 100 PSI Fuel Pressure Gauge | eBay JOhn Quote Link to post Share on other sites
mleadbeater Posted January 7 Report Share Posted January 7 hi, for interest, I’ve just posted an ebay link on the other recent thread on this subject for a T adapter and pressure gauge., thats how I checked my fuel pressure. Mike Quote Link to post Share on other sites
John L Posted January 7 Report Share Posted January 7 I made my own connection as I had a Minimes gauge and connector, if you go this route have a male fitting in permanently in the T piece, just a quick job to test. Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.