Thread: Isuzu 4BD1 on Ebay (out of 110)

It has the Land Rover oil filter/housing.

Doesn't have the Land Rover modified sump. No flywheel or flywheel housing.

Originally Posted by Bush65

It has the Land Rover oil filter/housing.

Doesn't have the Land Rover modified sump. No flywheel or flywheel housing.

and it has the isuzu rocker cover and not the LR one

i asked the question about the othere bits on ebay, its no good as an upgrade with out the Unique LR bits.

i was quoted 2K for a starter motor, got one in the end for 650 fitted. god knows what you would pay for a bellhouseing, depends on if the seller knows what he has or not?

MR Auromotive, i reckon the seller knows what he has got

Originally Posted by D3Jon

One thing to check would be if the sump was the correct one for a LR, if the owner is converting he might have swapped it for the truck one???

Actually, the truck sump is the one you want if you want to run your exhaust inside the chassis from a turbo manifold.

Originally Posted by rijidij

Actually, the truck sump is the one you want if you want to run your exhaust inside the chassis from a turbo manifold.

Why would LR (JRA) go to all the trouble of changing it from the standard Isuzu truck one? I don't actually know what the difference is between the two sumps, but I always presumed (possible wrongly) it was for front axle / diff clearance and to ensure good oil pick up when the car is on a severe slope.

With regard to the exhaust routing - is the truck sump narrower at the bottom or something? I just had a look under my N/A 110 Isuzu and the limiting factors for exhaust routing inside the chassis would appear to be (working from front to back) the N/S engine mount, starter motor, clutch slave cylinder and bellhousing.

Jon

Originally Posted by D3Jon

Why would LR (JRA) go to all the trouble of changing it from the standard Isuzu truck one? I don't actually know what the difference is between the two sumps, but I always presumed (possible wrongly) it was for front axle / diff clearance and to ensure good oil pick up when the car is on a severe slope.

With regard to the exhaust routing - is the truck sump narrower at the bottom or something? I just had a look under my N/A 110 Isuzu and the limiting factors for exhaust routing inside the chassis would appear to be (working from front to back) the N/S engine mount, starter motor, clutch slave cylinder and bellhousing.

Jon

I'm not sure of the exact reason they changed it either.
It's not for axle clearance. I know this because I've dented my truck sump in where the axle would hit it, and there's only about 10mm clearance inside to the bottom of the conrod.
I've never heard of oil pickup probs in the bush with an Isuzu either.

The limiting factors you mentioned are unchangable. You have to go under the slave cyl etc etc, so the only way you can gain the clearance for an exhaust inside the chassis is to get rid of the 'wing' of the Landy sump. At first glance, it might appear that you could get a pipe through next to the Landy sump, but once you get that pipe in there, there's not much room.

Landy sump 'wing' on the left and 3" pipe with truck sump on the right.

G'day All, My tuppence's worth on the sump issue, the Isuzu as fitted to all military L/r's is wingless, so as to accomodate the winch shaft, I have managed to fit a winch shaft with my winged sump, but it was a tight fit anyway cheers Dennis

Originally Posted by rijidij

the only way you can gain the clearance for an exhaust inside the chassis is to get rid of the 'wing' of the Landy sump. At first glance, it might appear that you could get a pipe through next to the Landy sump, but once you get that pipe in there, there's not much room.

Not true. I have the "winged" sump AND a 3" mandrel exhaust. It passes horizontally under the starter, then dips down after the bellhousing. I posted some pics previously in my turbo install thread.