Thread: 4bd1 sump getting thin

Originally Posted by isuzurover

<snip>

All 4BXX sumps should fit...

Not the case from my experience.

I got a sump from the local truck wrecker that was supposedly from a 4bd1. Bolted up perfectly - but was too shallow in the forward section and the big end caps hit on the sump preventing the crank from turning. I'd guess it was from one of the lower capacity engines with a shorter stroke.

Steve

generally, the sumps on isuzu engines are backwards compatible only.

IE a 4BD1 sump will fit a 4BB1 engine But the proper 4BB1 sump wont fit the 4BD1 as its too shallow (as already stated)

The advantage of the winged sump is increased oil capacity, this gives slightly cooler oil temps and prolonged oil drain intervals. The disadvantage is more potential leak points and exposure to sump damage. (and it costs more to fill it if you contaminate the oil)

If I've read it right he wants the sump for originality, Fair enough for me.

The sump I have has 40mm clearance from mounting surface to recess where
the bigend would impact if wrong . I was told it was a 4bd1 .Can anyone confirm by the measurement? It has a Tokyo radiator sticker with the numbers

11360-454|0

No|000632

Thanks AM

40mm looks about right.

Many thanks

This is very usefull and the first written information showing the pan that we have seen.
I think you are right about AMs very kind offer I will have to check on the clearance.

The pan does not have to have wings we presumed this would be specific to the 4BD1 non turbo version and had been manufactured this way to ensure adequate oil drcould be maintained during off road driving I have also been told the dipstick on the turbo version is a different length? so it made sense to try to source a pan with a wing.

Thanks AM I appreciate your offer but It looks as though this is not quite straight forward.
Can I wait for any more advice before deciding the best way forward and if your sump will be suitable?

No problems


AM

Yes the dipsticks are different lengths. The oil level on the non-winged sump sits higher than the winged version. Someone on here posted a photo of them side by side.
When I cut the wing off my sump I simply filled it with the required 8L of oil and re-marked the dipstick. From memory it was roughly the same level as I expected from the photo of the turbo motor dipstick.
30K km's later and plenty of strange angles offroad and I'm not aware of any issues with oil starvation. Certainly I've never seen the oil pressure light come on.

Steve