Fuel pump wierdness

[SuffolkSprint]

Hi, any suggestions about putting the fuel pump back on?<br>
<br>
After weeks and hours of taking bits off and back on, I finally got my engine started yesterday. She ran roughly, and stalled before I could get the choke setting right. When I tried re-starting a short while after, she wasn't having any of it. Good spark from HT lead to block. Traced the fault to no fuel being pumped. I removed and cleaned fuel filter. No help. I removed the pipe to carbs, turned her over, no petrol came out with any force. (There was fuel in the tank!). I put a simple pump made out of a garden spray on to the pipe leading to the fuel tank, and fuel came out when handle squeezed. So blocakges ruled out (pipework between pump and carbs clear). I looked at a spare jackshaft I have and noted the offset cam for the pump. I wondered if the pump arm can "miss" this and therefore not be moved? During my engine work, the jackshaft wasn't removed, but the timing chain was. I assume this wouldn't make any difference to the seating of the shaft? The dizzy still goes round ok, so I've ruled out total jackshaft failure! I tested the pump off the car with alcohol, initially the pump didn't work, then it did! <br>
<br>
Anyway, now I can't get the pump back on. It looks as simple as anything, it only has 2 bolts, but the little bleeders do not want to go in (except when pump not in the way!). It seems that the pump will not line up because it's arm is sprung tightly against the jackshaft. Damn fiddly! Any tips? I guess spacers might help, but as they weren't there before, I wonder if this would reduce the pressure of the pump. I tried making a home-made gasket (several, in fact) but this didn't help. Tried turning engine over slightly to move cam but this didn't really help. Pump definitely works now, as evidenced by the pool of petrol on the floor and up my arm!<br>
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I've probably rambled a bit there, but there you go!<br>
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Thanks <!--EZCODE EMOTICON START :D --><img src=http://www.ezboard.com/images/emoticons/happy.gif ALT=":D"><!--EZCODE EMOTICON END-->

<p></p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... kSprint</A> at: 10/5/06 2:10 pm<br></i>

[MaddMart]

I've done that before and had the pump come off the cam whilst driving (entusiastically). It is a pita but if you can get a bit of studding or cut the head off a spare bolt & put that in one of the threads, you should be able to put the pump on easier. Or just change to a leccy pump. <!--EZCODE EMOTICON START :D --><img src=http://www.ezboard.com/images/emoticons/happy.gif ALT=":D"><!--EZCODE EMOTICON END-->

<p>Martin<br>
<br>
<!--EZCODE LINK START--><a href="http://www.dolomitesprint.com/" target="top">www.dolomitesprint.com</a><!--EZCODE LINK END--></p><i></i>

[SuffolkSprint]

Cutting the head off a bolt is a good idea. I'm glad I'm not the only one it's happened to! <!--EZCODE EMOTICON START :rolleyes --><img src=http://www.ezboard.com/images/emoticons/eyes.gif ALT=":rolleyes"><!--EZCODE EMOTICON END--> <br>
<br>
How much are electric pumps?

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[Jon Tilson]

If you look at the spare jackshaft you will see that in some positions the pump will be under its most sprung load and in others the least. Just stick you finger in the hole and turn the engine over til you can feel the "back of the cam". Then the pump will go on.<br>
<br>
Some pumps have long arms and a spacer, some have short arms and no spacer.<br>
<br>
I find it easier to have studs...but then the pump wont usually go in unless its on the back of the cam.<br>
<br>
When its correctly engaged you can check if it will pump fuel by rocking the pump on the studs/bolts. It should pump. If not you've missed again.<br>
<br>
Jonners<br>
<br>
Jonners

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[sebking]

and when you start it up and there's oil everywhere you can go back and put the pump on properly...

<p>1979 Triumph Dolomite Sprint<br>
1970 Triumph Spitfire MKIII<br>
2005 Volkswagen Touran 1.9TDI SE<br>
2001 Skoda Fabia 1.9 SDI Comfort (!!)<br>
</p><i></i>