80 series diesel primer pump problems

Hi there drew, not sure if you have the same set up as my hilux, pretty sure it is but my'n takes at least 05/10 mins of continuos pumping until it gets some pressure in it. I leave the fuel line off on exiting point on the primer pump until it starts to squirt through then I put the supply line on and clamp it up. I do this procedure every time I replace the filter. It has always taken this amount of time to get the fuel through since I'v had it. Had my mate look at it cause I didn't think it shoud take so many pumps and he said it's fine. You have to remember that you are only priming with some thing that moves up and down about 2cm. Unless you normally don't have a problem. Not sure wether you have done this before or is this your first time ???. Regards Vitara

i think you answered your own question. If it took longer to do than before then obviously something is not right. Sounds like you may have some air getting in or something so it would pay to check your connections.

The pump itself can get a stuck valve.
Andrew

Best solution is to get an aftermarket pump and filter assembly, for about $140. They use 296 filters which at around $5.00, are a lot cheaper than Toyota ones.

Cheers

The best thing to do is fit a primer bulb from a marine shop about $20 just cut the hose fit it in and pump it up its what some bobcats use I have fitted the to the rodeos because they are hard to prime using there primer pumps havent had a prob with any other diesels .

Most diesels will prime better with a full fuel tank, my troopy used to prime much easier with a full tank.

There is a shop on Ebay, search under "Landcruiser" that sells the primer pumps cheaply.

As said prior make sure you have a full tank and stick some compressed air into the tank at the filler sealing it with a rag while somebody else pumps. It should prime up in no time at all. You have to get the fuel moving. Some times all you do is move air back wards and forwards. Try also to clamp off the supply line before you disconnect it. That way it will stop fuel running back to the tank as the filter is usually right up high.

Hi all, I am a diesel mechanic, I do two or three of these type of filters/primers every week only about 50% work OK I think little bits of crap get stuck under the reed valve and they wont pull the fuel through, I carry one of the marine type primer bulbs, as mentioned above , connect into the rubber lines, fuel up in a few seconds.Also great for finding an air leek in the system, just pressurise the system at the tank end the air leek becomes a diesel leek.
Regards Ken.
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