Fuel pump

[Davemate]

I'm using the glass top fuel pump from my 2ltr that was working fine. Having fitted it to the 2.5 it's not working when the engine is running,it's working when I hand pump it.
Can they be fitted wrongly,could I have put the operating leaver under the cam and if I have would it still bolt up nicely onto the block

[Nick Jones]

Not sure about under the cam but I think it is possible to put the operating lever to one side of the cam (I know I've come across this in the past but possibly not on a Triumph 6).  Definitely worth checking.  Any spacers etc that were on the original engine should be transferred across with the pump.

Nick

[Davemate]

The cam seems high in the opening


The arm on the pump seems low in the rest position

If the prime arm is lifted the arm angle rises a little bit but it's still not angling upwards enought to hit the cam in my opinion


Measurment from block to cam is

And the arm is only a little longer, if angled up to the hight of the cam then I think the measurement will mean it's only just touching the cam on its end


1) Is there a long or short arm pump ?
2) Is the arm bent on my pump rendering it useless ?
3) Is it worth replacing the manual pump with an electric one anyway ?

[Davemate]

Just looked on witors site
Seems my pump is an early mk1 one ,which is what my 2ltr engine was -- it has a flat ish arm
Late mk1 and mk2 both have an angled up arm,which means I have the wrong pump ! :-/

[Nick Jones]

Well..... that's weird!  Never would have expected that to be be different.

Nick

[Davemate]

Nick,
Doing this 2.5 conversion in my mk1 has been a real pain in the back side,everything has been a struggle. I found a major oil leak from the back of the engine today when cranking it over,I then noticed the little oil way bolt at the back of the head was missing,that's a real pain to fit when the engine is in the car, so many little things I never even thought about.