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Braided fuel pie to PRV


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Hi All.

I'm looking at changing my fuel pipe from the Bosch pump to the PRV. The one that's fitted looks like it's a Banjo type fitting but all the ones I've looked at appear to have union on each end.

Does the another part unscrew from the pump to allow fitting of the pipe ? I can't see very well with the pump fitted.

Cheers Mark

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The outlet is tapered for a banjo bolt, have a look at the spare pump at the picture.

http://www.ijonsson.se/triumph/photo_diary.php?day=motor&folder=motor&id=IMG_1240

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This is the set up I have part from the spacer between the pump and banjo.

Can't see how the nut would fit will I have to order some sort of adaptor or is there another braided hose ?

Cheers Mark

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Why not talk to Malcolm Jones at Prestige Injection, he may have a hose already made up for what your looking for.

Or take you current hose to a hydraulic hose specialist and get one made to what you want.

John

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Never thought go that John, there is a place 30mins from me. I've seen pictures of Bosch pumps with braided hoses I was just wondering how as I've obviously ordered the wrong hose.

Thanks Mark

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The outlet is tapered for a banjo bolt, have a look at the spare pump at the picture.

http://www.ijonsson.se/triumph/photo_diary.php?day=motor&folder=motor&id=IMG_1240

Observe that this filter is after the pump, there is another prefilter between the tank and the pump in the car (not visible in picture).

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Marki, the picture of the setup you have posted is the same one that caused me mega running problems on my 6. The pump and filter are the wrong way around.

 

Basically the (Bosch?) filter in your picture is likely to be a fine filter that should go after the pump. A fine filter before the pump will likely cause reduced flow which a Bosch pump will not tolerate, this will become exacerbated as the filter blocks up.

 

I looked into an "off the shelf" pre filter, but few manufacturers post filtration specs. I reckon on a 50-100 micron high flow (this is the important bit) filter before the pump and the standard Bosch or equivalent as shown (10-20 micron). The pump will tolerate throughput of some smaller particles.

 

I ended up with one from Malcolm which is of the anodised after market race application type.

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Hi Mike.

Yes I have seen filters before the pump and I have had issues with a blocked filter. The photo is from Rimmers catalog so there obviously still selling this set up....

I've just had a new filter so would I be better off swapping the filter to the other side of the pump, this would put the filter under pressure, is this OK ?

So you will have two filters then one before and one after ?

Thanks Mark

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Hi Marki,

 

Your pic in post 11 is exactly how mine is now. Luckily I had a spare Bosch pump/filter assembly so I could mix and match banjos and fittings. My initial setup (similar to your pic in post 5) for example did not have the short green link pipe between the two - you will need this to convert to the correct config.

 

The red inlet filter you have shown looks identical to the one I bought from Prestige, even down to the right angle fittings! I'm just awaiting delivery of a new Bosch filter then that job is done and dusted.

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These guys do everything for automotive plumbing and make stuff up to order. Built a Bosch setup myself sourcing all the pipework from them.

 

http://www.thinkauto.com/

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These guys do everything for automotive plumbing and make stuff up to order. Built a Bosch setup myself sourcing all the pipework from them.

 

http://www.thinkauto.com/

+1 for Think Auto, very helpful and made up some braided lines while I waited a few years ago.

 

I'd also mention that the 'bosch' setup pictured with long braided hose caused loud resonance on some cars, including mine, especially when fuel was lowish.

 

Steve

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Thanks Robin and Steve.

How did you cure the resonance Steve ?

Mark

Hi Mark, I'm afraid I never did.

 

This was on my last tr6, others replaced the prv with a 'new diaphram type' but I don't know it that actually worked.

 

I'm not a big fan of the "Bosch kits" as a result.

Present car has a racetorations "996 pump in the wheel arch" setup which is faultless right down to an empty tank.

 

If I was replacing a Lucas setup I'd fit an enlarged tank outlet, a pre filter under the tank in the boot, and then something like a Bosch 996 ( sadly NLA) as low as possible, probably in the wheel arch.

Power via a relay with chunky wiring for positive and earth, original grey circuit breaker in the feed to the relay.

Steve

Edited by SDerbyshire
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