Thread: Surging?

Originally Posted by Bush65

I was thinking possibly oil from turbo seals!

Ah - didn't think of that one - I will check.

Been off the radar for a wile. Need to resubscribe here so PM box is full etc atm



My 4BD1 surges like a bastard at 2850 RPM. Very annoying as right at the top end of the useful power band when towing in the hills etc. Seems to only do this wile under some load.? I have opened the governor to 3600 RPM and is happy to see it with no surging.
The NA pump is not ideal with turbo, cant get the air fuel spot on.
I'm going to fit high pressure electric lift pump with an adjustable fuel regulator and see if things improve at all.

If this doesn't help, like others, I'll wait till my pump dies and deal with it then.

Had it away once for no gain.


Yea, been having some fun with Ultimate suspension. Have used their products for years out here.

ahh good someone else with this, my baboon does the similar, 3rd or 4th and 24ishlbs plus if i'm really into it up a hill it surges - i thought it must be that it wasn't getting enough fuel?

Did you ever fit the electric pump?,if so did it help?


My 4BD1 surges like a bastard at 2850 RPM. Very annoying as right at the top end of the useful power band when towing in the hills etc. Seems to only do this wile under some load.? I have opened the governor to 3600 RPM and is happy to see it with no surging.
The NA pump is not ideal with turbo, cant get the air fuel spot on.
I'm going to fit high pressure electric lift pump with an adjustable fuel regulator and see if things improve at all.

If this doesn't help, like others, I'll wait till my pump dies and deal with it then.

Had it away once for no gain.


Yea, been having some fun with Ultimate suspension. Have used their products for years out here.[/QUOTE]