Securing spade connectors on fuel pump terminals

[hygt2]

Hi all, the spade connectors work themselves loose every now and then. Unfortunately, that happened again this afternoon during torrential rain. In fact, every time this happened in the past, they were always cold, wet, dark or all of the above together.

Question: without changing to the stud type terminals of the Bosch fuel pump, what's the best way to keep the spade connectors plugged in securely please?

The fuel pump is working perfectly so not wanting to change them to a £120 Bosch fuel pump ...

Many thanks
Garry

[Penelope Stopit]

Here you go

Spring loaded locking Lucar connector with a nipple on the spring part that locks into the hole of the fuel pump spade connector

If you're ordering some, contact the supplier and ask for the special terminal covers

If you can't get hold of the proper plastic covers use rubber covers or heat-shrink



https://www.altecautomotive.co.uk/635mm-pozilok-fe...

Now found the covers https://www.altecautomotive.co.uk/insulation-cover...

Select Pozilok in the red dropdown box

Edited by Penelope Stopit on Thursday 20th February 20:42

[ChimpOnGas]

Hi Garrison, glad we were able to sort it over the phone, but I'm very surprised the AA man didn't check the fuses or you'd have been back up and running far sooner, anyway we fixed it and I'm always happy to help. Just remember those LED fused light up when their blown to help you easily identify the fuse that's blown.

I'm afraid with the standard Chimaera pump you're kind of stick with the spade connections which are utter shyte in my opinion! You can make the female connectors on the wires fit a bit tighter on the male spades in the pump by lightly squeezing them with a set of pliers but it's not really a reliable solution.



The fuel pump on our cars is very exposed so spade terminals are a very poor idea, as per my text Bosch moved to stud terminals and this is what you want as they offer far more secure connections.

While buying a new pump that uses stud terminals seems a very expensive solution it's by far the best option, your fuel pump is likely very old now and is maybe even the original so replacing it is also good preventative maintenance. Personally I would always try to fit a genuine Bosch pump but they are expensive.

I got lucky with finding a new old stock Cerbera spec Bosch pump with stud terminals so they do come up on eBay from time to time, be careful of fakes though. There's are a lot of far cheaper fuel pump options out there with stud terminals but be careful as many of them are very poor quality, so as a compromise you may want to consider something like this one from Fuel Pumps Online.

https://www.fuelpumpsonline.co.uk/fuel-pump-for-tv...

Fuel Pumps Online say their £60 pump carries a 1yr Sytec warranty and is a cost effective yet reliable replacement for factory pump, they also claim Sytec are UK leaders in fuel technology but I can't confirm any of these claims as I will only ever fit Bosch. Avoid anything cheaper than £60 as it'll almost certainly be a junk Chinese pump that will let you down solving nothing.

Hope this helps?

Dave.

[SILICONEKID 357HP]

Just pinch it or drop some solder on it .

[Steve_D]

Penelope Stopit said:

Here you go

Spring loaded locking Lucar connector with a nipple on the spring part that locks into the hole of the fuel pump spade connector

If you're ordering some, contact the supplier and ask for the special terminal covers

If you can't get hold of the proper plastic covers use rubber covers or heat-shrink



https://www.altecautomotive.co.uk/635mm-pozilok-fe...

Now found the covers https://www.altecautomotive.co.uk/insulation-cover...

Select Pozilok in the red dropdown box

Edited by Penelope Stopit on Thursday 20th February 20:42

If you do plan to replace the terminals remember that they are different sizes. The normal Faston terminal is 6.35 (250 series) but the positive terminal on the Bosch pump is 7.92 (312 series). So you will need one of each. I don't believe the site linked above does the 7.92 Pozilok or at least I could not see it listed.

Steve

Edited by Steve_D on Friday 21st February 21:03

[ChimpOnGas]

Stud terminals and proper rubber terminal boots packed with silicone grease is definitely the best solution.



And nothing beats the reliability and longevity of a genuine Bosch pump.

[Pinx]

Any link to where you can buy the genuine Bosch pumps from ?

Cheers

Pinx

[phillpot]

Pinx said:

Any link to where you can buy the genuine Bosch pumps from ?

Racetech

You will probably find cheaper on Ebay, but always that gamble, is it genuine?


I friend bought one very cheap, thinking it it was probably a fake, just to get him out of trouble but turned when he checked the little hologram sticker it all tied up with info on Bosch website.

[ChimpOnGas]

In my opinion you are better off paying a the premium for a genuine Bosch item as the quality & reliability is always exceptional, just make sure you're not buying a fake as there are lots of snide Bosch fuel pumps out there, check the box label & pump, what you're looking for is "Made in The Czech Republic".

Oddly if you see "Made in Germany" it'll probably be a fake, the vast majority of genuine Bosh pumps are actually made in Czechoslovakia and the fakers didn't understand this, back in 2014 my pump started screaming on low fuel so I went hunting for a genuine Bosch replacement and managed to find a new Czech built one on Ebay for £95. It was actually listed for a Porsche 911 & 928 but fits perfectly and is the exact same pump all the TVR specialists sell these days for the Cerbera & T cars, the flow is 25% higher than the one TVR fitted to the Chimaera but obviously the pressure at the rail is governed by the FPR so there's no issue fitting it to a Chim.

This pump has worked perfectly for the last 6 years and is more or less totally silent in operation even on a low fuel tank, Bosch had a habit of discontinuing pump part numbers and replacing them with new ones because often each number relates to a specific car, when the manufacturer ceased making the car often (but not always) Bosch deleted the part number. To add to the confusion many Bosh pumps with different part numbers are completely interchangeable; hose fittings, physical dimensions, flow & pressures all being exactly the same.

So it can all become very confusing, I recommend you start looking for a 0 580 254 957 which flows 128 litres per hour and are good for over 300hp or a 0 580 254 967 & 0 580 254 053 which both flow 175 litres per hour and will happily feed a 450hp V8. All three Bosch pumps listed will fit a Chimaera and will work fine, for anything up to 300hp just make sure your flow is 80 - 100 litres per hour or more and the dimensions are as follows:

• Inlet: 12MM (3/8")

• Outlet: M12 x 1.5

• Length: 180mm

• Dia: 60mm

• Electrical connections -/+: M4/M5 (Indicates stud type, which are way more secure than the original spade terminals)

[Pinx]

Cheers,

thanks for all the info