fuel pump spacer 1750 motor

[sportscar]

Hi all put a 1750 motor in recently ,just need to know what size spacers go between pump and motor as the person that
put the motor together made a mistake ,tried 2 fuel pumps and wont pump fuel
could there be a problem inside motor,thinking of just taking to mechanic ?
any help much appreciated ,cheers jason

[Neil Choi]

Jason

Probably won't solve your mechanical fuel pump problem but a good thing to do is to put in an electric fuel pump, Facet or Goss are reasonably priced and easy to do.

Regards
Neil

[AikenDrum105]

Hi mate -  there are different length stroke rods for 105 engines I think - there's also a plastic/bakelite type spacer that sits between the engine and the pump - it's about 8mm thick I think.   

later cars with the pump mounted at 90 deg. to the timing cover use one pushrod,  earlier cars with the pump at a different angle use two rods in line.

to check for pump stroke -  with the pump off rotate the engine by hand until you find the spot where the pump stroke rod is extended the most from the timing cover  - then fit the pump to the car - you should need to push the pump on - depressing the lever inside it - to mount it up.  If there's no resistance and the pump sits flush with no pressure against it  - you need a longer stroke rod.   

You can also check the pump itself - you can see the laminated metal 'finger' that the stroke rod presses against inside the pump - just use a screwdriver to work the lever in the pump. You could even put a hose on the intake and feed it some fuel and test if it pumps that way.

I have a few in the shed you're welcome to try out if that helps.

If you go electric - the little square pumps have mixed reviews - I had one that drove me nuts,  others love them.   I'd gently recommend you avoid them.  You might like to fit an automatic cutoff switch too - so the pump cuts out when the engine stops (eg when the 4wd t-bones you across the intersection - touch wood),  and doesn't keep pumping fuel into the fire...  Scary stuff. 

Cheers,

Scott.

[sportscar]

Thanks guys very helpful,will try again on weekend