Fuel primer problems

[Greg212]

Hi,
I recently changed the fuel filter and been having cold start problems when the truck has been standing over night.
After replacing the fuel filter (ten minute job) I used the small black primer/plunger to pump fuel (I naively did not fill the filter prior to putting on) – I pumped for a while and felt it harden up (!) – I was quite happy that I had filled the filter with the pump/plunger. I then pumped a few more times until it was really hard (see comments below).
I then started to experience early morning starting problems (after truck had sat for the night) – it fires up fine every time normally – just problems after a long stand (which sometime means jump starting it and cranking it for ages..)
I had the filter off again a few days later to investigate (fuel level was about 15mm below brim of filter). I suspect I may have broken the fuel plunger/primer by being over enthusiastic with my hand pumping – see comment above. I think the primer/plunger may be broken as I tried to pump fuel from a small cup but the plunger would have none of it – it sucked up fuel from the cup and then ‘spat’ it back into the cup again – not much pumping going on.
I assume the problems are due to fuel draining back into the tank, and the slack feel now in the plunger/primer means I cannot suck fuel into the filter to replace the trapped air in there. I tried to open up the plunger/primer but seems they are sealed units.
I have bought a cheapy check valve which I will put into the fuel line just BEFORE it enters the filter. I could of course buy a new plunger/primer but they are going for about £80
Anyone got any thoughts?
I got the truck 2 months ago and am totally into it, just wish it was a bit more reliable to start right now.
Thanks in advance
Greg

[dazandcaz]

Hi, i had similar problems last year. My neighbour who is a mechanic for the ambulance service had a quick look, instantly said the filerhousing/primer seals would be shot. He got hold of a cav style housing and filter for about £35, about 1/2hour to fit and my cold start problem was sorted. The filter i run is readily available for my local motor factors. The only downside is that i cant fit the water sensor in the bottom.
If it was my truck i would certainly replace the unit and filter to make sure all the seals are spot on just to save on problems.

Hope this helps.

Dazza