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Bosch fuel pump swap

tr6 engine fuel

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#1 Steves_TR6

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Posted 12 August 2018 - 07:15 AM

Hi folks, thought id post something about working on my TR...... :-)

I have a Bosch 996 pump that was installed in the 1990s by Racetorations and which works perfectly, can run the car right down to empty without a problem.

Knowing these pumps are NLA i bought one that came up on ebay a while ago, well couple of years ago probably!, and this week decided it was time for a test.

Since ill be messing with the flexible pipes ive bought some new 250psi rated flexible hose, new mounts and clips. Ive also ordered a slightly larger outlet fitting for the pump to better fit the 10mm hose.

Removed the old pump yesterday and here they are side by side.

The old pump is dirty ! But then so would you be after 20 years located just behind the rear wheel of a TR that actually used :-)

I already have a relay and enhanced earthing in the boot, ill renew the foot of wiring to the pump whilst im at it.

Will be interesting to see if the nearly new 996 performs any different from the really old 996

Steve
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I thought TRs were meant to leak outwards!

#2 Steves_TR6

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    Marin Mount Vision and Paratrooper Pro mountain bikes.

Posted 12 August 2018 - 07:16 AM

And heres the pic......

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I thought TRs were meant to leak outwards!

#3 michaeldavis39

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Posted 12 August 2018 - 09:18 AM

Where did you get the clamp bracket and mountings from? Thanks
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#4 astontr6

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Posted 12 August 2018 - 10:34 AM

Where did you get the clamp bracket and mountings from? Thanks

You can use a coil clamp bracket but be careful of sizing as they do vary. This is also what I used for the pump and filter.

 

Bruce.


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#5 Andy1966

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Posted 12 August 2018 - 11:12 AM

Steve

 

I too have a CR with a 996 pump in rear arch which reading the history of the car was installed in the 90's, I am interested to know what you opt for pipework and connections for the installation. I have already uprated the tank outlet, installed a tap and replaced standard triumph filter with Inline replaceable type as shown but think this set up could be improved.

 

Can you post some images of your pipework set up please 

 

 

Andy

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#6 Steves_TR6

Steves_TR6

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    1974 TR6 mongrel.....
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    Ducati Multistrada 1200s
    Ducati Hypermotard 1100
    Honda CB360 based Cafe Racer
    Amita, x-yachts X-46
    Marin Mount Vision and Paratrooper Pro mountain bikes.

Posted 12 August 2018 - 11:50 AM

Steve
 
I too have a CR with a 996 pump in rear arch which reading the history of the car was installed in the 90's, I am interested to know what you opt for pipework and connections for the installation. I have already uprated the tank outlet, installed a tap and replaced standard triumph filter with Inline replaceable type as shown but think this set up could be improved.
 
Can you post some images of your pipework set up please 
 
 
Andy


Hi Andy

Actully i’d like to increase the tack outlet size, where id you buy the fitting?
I was warned against taps as they can restrict flow/leak ?

Presently i’m using disposable systec filters, but as they only have 8mm ‘tails’ this isnt ideal.

One tip though, install the filter vertically, inlet at the top, this then acts as a small reservoir of fuel for the bosch pump, avoids air in the fuel which the pumps dont like.
I’m changing the pump outlet to 10mm so i can then run 3/8 250psi rubber hose to the prv.

Will post pics when done.

As for the brackets, thay came with the pump, the mounting rubbers are sytec.

Steve
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I thought TRs were meant to leak outwards!

#7 HSM

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Posted 13 August 2018 - 09:06 AM

Malcolm Jones at Prestige Injection can supply large bore tank outlets that he fits to his pump kits.

 

 

 

                                              Harvey S. Maitland


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#8 OldBob

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Posted 13 August 2018 - 05:27 PM

One tip though, install the filter vertically, inlet at the top, this then acts as a small reservoir of fuel for the bosch pump, avoids air in the fuel which the pumps dont like.

Steve

 

Hi Steve,

 

wouldn't top inlet be dfficult for the filter to self bleed?

 

regds

Bob


Edited by OldBob, 13 August 2018 - 05:27 PM.

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