Leaky fuel pump

Radd Cruisers · Post by **Radd Cruisers** » Tue Oct 24, 2006 8:35 am

Anyone come across this issue and had to repair it?

Thanks
Rob

Post by **BCDelica** » Tue Oct 24, 2006 2:17 pm

Yes, I have, it seems every where I read that the fuel pump seals leak after 100000 to 150000k. Even a broker in Japan told me that almost all high mileage Delica's have leaky fuel pumps. I have had a close look at mine and they seem fine and dry, hopefully WVO will give the pumps a longer life. I don't know what a seal kit would cost, but I would want a diesel mechanic to do that kind of work.

Has yours started to leak?

Man, between Nanaimo and Gab every other van down there will pretty soon be a Delica. :lol:

Post by **BCDelica** » Tue Oct 24, 2006 5:48 pm

Ahhhhh, your a Landcruiser guy, now there is a great hardcore group. Checked your website, impressive that you carry all those parts in stock, good job. Love that white 60, sweet.

One day I would love to import my own cruiser.

Radd Cruisers · Post by **Radd Cruisers** » Wed Oct 25, 2006 10:03 am

Thanks, I have been a landcruiser restoration and diesel conversion company for a couple of years now.

This fuel pump problem seems to be common after speaking with a local injection shop. Seems the low sulphur here breaks down the oring or as I was told sucks out any of the sulphur and therefore shrinking the oring?

Rob

hutch · Post by **hutch** » Wed Oct 25, 2006 2:35 pm

This is what happened in OZ a few years back. I started getting heads-ups on it from the Co-op gas stations in smalltown Saskatchewan warning farmers with their equipment. What about fuel additives? What's the good stuff in it that so-called replaces sulphur anyways?
hutch

Breadman · Post by **Breadman** » Wed Oct 25, 2006 6:56 pm

i have heard that adding a bit of veggie oil to each tank helps lub up the system.
paul

argo · Post by **argo** » Wed Oct 25, 2006 8:23 pm

I think it depends on the type of material the seal is made from. Nitrile rubber seems to hold up better to low sulfer fuel than butyl or natural rubber compositions.

The fix would appear to be to retrofit your pump with nitrile seals.

I've heard you can get less expensive [jobber] pumps,but they don't last as long as long as the brand name ones.

surferboy · Post by **surferboy** » Wed Oct 25, 2006 8:34 pm

Hey guys, just checking to make sure that you guys are talking about the delica vans having a problem with fuel pumps, and not a landcruiser... sorry i got a bit confused but the thing is, if it is the delicas, mine doesn't appear to have that problem yet but in the eventuality that it would, were do you get a new fuel pump for those vans from, and what would be the cost involved in replacing it, is it something fairly minor that i could do myself or is it more for a diesel mechanic to look after?
on another note, i am planning on getting a new timing belt put in my van and i wanted to know if anybody out there could tell me how much should i expect to pay whitout being ripped off for the labour... also, should i just get the water pump changed while at it and if yes, how much for a new one and were to get it at a good price? it appears to me that those vans sure need a lot of attention for such low mileage and its turning into a bit of an adventure to find parts at times!

argo · Post by **argo** » Thu Oct 26, 2006 9:11 pm

It's not just mileage, it's age related as well. When machinery sits idle [not at idle] for long periods seals and gaskets dry up. It's for this same reason you should cycle your AC system and 4 wheel drive running gear once a month throughout the year. To keep seals lubricated and to prevent corrosion from moisture due to condensation.

Any 15 year old vehicle while likely require some attention.

I asked on a separate post if anyone could hip me to the fuel system filtration, specifically the number of filters used. Well engineered diesel fuel systems typically employ two filters,one on the suction side and one on the pressure side. Do Delicas have only one fuel filter?

Radd Cruisers · Post by **Radd Cruisers** » Sat Oct 28, 2006 3:05 pm

Argo is right on with his theory on the age and lack of use, in fact this unit only had 39K.

AS for fuel filters, I think only one large unit is run in the engine compartment.

As for the fuel pump fix, I did the fix while the pump was on th engine, not overly difficult just took take and patience. Also to mention I had no FSM(factory service manual), so I relied heavily on the local injection shop to walk me through it.

Works great now and no longer leaks.

AS for changing out timing belt and water pump, I always do this on landcruisers and would also do the same for a delica.

Thanks
Rob

argo · Post by **argo** » Sat Oct 28, 2006 8:56 pm

Hey Rob,

What was required for the fuel pump fix? You said you did it in place was it just an o ring?

Cheers,

Mike

Radd Cruisers · Post by **Radd Cruisers** » Sun Oct 29, 2006 6:51 pm

One small o-ring for the throttle rod coming throught the cover and the other was the top housing rubber gasket or o-ring that fit in a recess.

Rob

argo · Post by **argo** » Wed Nov 01, 2006 7:14 pm

Sounds relatively simple. You don't by chance have part #s for thr o ring and gasket do you ?

mdrive · Post by **mdrive** » Tue Nov 07, 2006 1:37 pm

just visit any injection shop and take your old O ring and get from them. For mine they did not even charge me, but it has to be fuel resistanc one. on my delica it was loosing pressure, it is all fixed now.

argo · Post by **argo** » Tue Nov 07, 2006 10:49 pm

Just trying to save myself and anyone else who's undertaking these repairs some shoe leather. I know you can tear down engines and thier support system components, but I'm not at all keen on disabling my vehicle in order to match up parts.
Thats why I'm asking for part numbers or failing that inside, outside and cross sectional dimensions.

like they say let your fingers do the walking. A good deal of time can be saved by sourcing parts over the phone instead of travelling to a jobber with something in your hand to see if maybe they can provide a match

It is just that much simpler, easier and faster if you have all the replacement parts in hand before commencing repairs.

cheers

Delica Canada | Mitsubishi Van Club

Leaky fuel pump

Leaky fuel pump

leaky fuel pumps

were do you get a new fuel pump?

o RING