Outer Limits 4x4 Board

Anyone fitted one to a diesel engine? Any tips on fitting. Also do you need to still go through original mechanical pump or can I bypass it? Worried if the original pump has no diesel to it then it'll sh*t itself. Any feed back would be great.
Thanks Guys Ian

If it is compatible with diesel fuel in my opinion you could only use it as a feeder pump as the pump on a diesel engine is higher pressure and controlls the fuel for the engine.

What is the reason you want to run one?

Ben

The poor old girl stops in embarrassing places ie on hills. Checked for blockages...changed lift pump and filter, will work fine if I put the tank under pressure but as soon as this is released then she stops. Any ideas?

Maybe you have a air leak in a hose, or a hose breaking down and partially blocking or something, whne you get on big angle, the pump can't keep up.

There should be no need for an electric booster pump - I've never needed one in any diesel I've ever had. I know they're sometimes used in high HP applications and in some factory applications (24 valve 6BTA Cummins dodge ram, from memory) but you shouldn't need one in a toyota.

Treat the cause not the symptom IMHO.

Steve.

OK,
So forget the pump!
What's the best (easiest for non mechanic!) to check hoses for leakage? Compressed air down the hose and visually have a look? One other question the one place I haven't done yet is the tank itself. Is there a filter in there? Should I drop it to look before the above?
Thanks for your help everyone.
Cheers

why forget the pump, I run a ebay holley copy and love it. have tried carter black pumps and they are great but break too easy.

the factory lift pump will suffer if you bypass it as it will dry up,etc.

depending on your max fuel pressure into the injector pump is to how much psi you can feed into it before you have issues.

My patrol (SD33T) will handle 22psi before the relief valve cuts in , so a holley black at around 15psi is fine. has heaps more power all over the curve, but its cause its getting as much fuel as it needs all the time. it can reach max rpm in 5th gear now


The ebay pro comp pumps are ok, the elect motor isnt sealed and you need to use thread tape on the pressure vavle grub screw.

Put clear hose from pick up at tank to metal fuel line check for air in the line if no air put clear hose from line to pump if no air check from pump return line if air there pump will be shagged.

loopy31 wrote:Anyone fitted one to a diesel engine? Any tips on fitting. Also do you need to still go through original mechanical pump or can I bypass it? Worried if the original pump has no diesel to it then it'll sh*t itself. Any feed back would be great.
Thanks Guys Ian

what vechile/motor?

if its allready got a mechanical lift pump then there is little point fitting another pump, as allready posted fix the problem.

if it doesn't have a factory lift pump then adding one can help with defiecenices that some injection pumps have.

however highly recommended to fix any leaks (including air leaking into fuel lines) before doing anything.

Ok thanks for the feedback
1 Gonna to drop the tank and check filters etc...
2 Change all fuel pipe to the lift pump
Then pray ....
Let u know how I go
Thanks to all