Fuel Pump

Big lumps of metals and spanners.

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Steve T
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Location: Salisbury, Wilts

Fuel Pump

Post by Steve T »

Had odd problem with fuel pump, the pivot pin in the main body had drifted out of place, pushrod was working the lever but as the lever was not pivoting on the pin, no fuel was going to carb. Have checked and can see no way of preventing pin from moving (short of getting nut & bolt of correct size and substituting) Bolt would be of softer material than pin so would only be temp sollution. The method I used was a piece of metal strip to wrap around pump, as there is no lateral / side movement on the pin this has worked. Fuel pump not very old so do not want to waste money on new one. This may help someone if fault finding fuel problem, or something that should be checked to see if pin has moved from its location and not functioning to full capacity (1984 DG 1.9 w/cooled)

Might be of use? or comments if anyone has better sollution!

Steve

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Grun
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Re: Fuel Pump

Post by Grun »

Steve the "T",

I had exactly the same problem...... although pump was a British made replacement for the original German unit which had given stalwart service on my 1972 Bay window 1600 Aircooled, from new until 1987, when the diaphram gave up the ghost.

Rule Britannia, six months and the pivot pin, of the replacement, worked itself out.

I centre punched each side of the body of the pump, (soft metal) surrounding the pin at 120 degree intervals, so three each side, to raise the edge and hopefully trap the pin, and it has stood the test of time.... eleven years on.

A bit of Loctite 'thread lock' or similar anaerobic adhesive applied to just the cleaned ends of the pin and body (plus centre pops) might be better.

Not knocking your solution, just an alternate.

Mike
'Two 'eads is better'n wun even if mine's a sheeps'
Grun
Member Number 1250
D reg 2.1 DJ autosleeper poptop

Fritz
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Post by Fritz »

Yes I have also come across this type of problem with the pivot pin going AWOL...... my fix was a 6 mm stainless bolt with a shoulder on it....


Regards

Fritz,,,,,,,,,,,,
One day you will find me,,
Driving in my Camper,
With a Surf and Paisley wrap on both sides....

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Steve T
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Posts: 163
Joined: 05 May 2008, 10:02
80-90 Mem No: 5058
Location: Salisbury, Wilts

Fuel pump

Post by Steve T »

Thanks for the idea's, I will source "hard" metal / stainless bolt or get something milled longer and secure with pins or cap ends. I was sure my problem was electrical as I had the earth strap off engine / gearbox to chassis, starter motor and connectors off for a damn good clean back to good bare metal, the engine spun over like a washing machine on extra fast spin after doing this much needed fettle, and was miffed why she would not start, spent a while checking connections and had good spark and happened to notice pin hanging out, pushed back in but worked loose after 2 mins running. Cheers for the (as always) good advice

Steve

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