FJ40-BJ4X Tranny Knowledge Needed

[TYPE 40 FJ TARDIS]

I doubt this ever happens, but the whole plan has now radically changed. I can get a running B motor for free so I want to know if I can simply put the matching parts in my 79 FJ40 H42 or acquire a different gearbox altogether?

 

[Living in the Past]

Input shaft and bearing retainer are different on the F engine and B engine in the 40 series. The H engine is the same as F engine.

Also the H42 gearing is different in the H41. Most diesel have or possible all had the H41 four speed. All H55F shared the same gearing as the H41 of the same time persiod. Would hard to find if no impossible to find a B input shaft (which includes first gear) to fit an H42.

 

[TYPE 40 FJ TARDIS]

Input shaft and bearing retainer are different on the F engine and B engine in the 40 series. The H engine is the same as F engine.

Also the H42 gearing is different in the H41. Most diesel have or possible all had the H41 four speed. All H55F shared the same gearing as the H41 of the same time persiod. Would hard to find if no impossible to find a B input shaft (which includes first gear) to fit an H42.

So if I can source an H55F I can make it work? Assume an H55F that was behind a 12HT still needs modifications?

 

[Living in the Past]

So if I can source an H55F I can make it work? Assume an H55F that was behind a 12HT still needs modifications?

Not sure what the input shaft from a 12HT fits but it wouldn't fit a B engine.

 

[jim land]

You need an h55 from a canadian bj42 83-84 , or from a bj60 but the shifter position is not the same, 42 top cover is not easy to find

 

[3_puppies]

I doubt this ever happens, but the whole plan has now radically changed. I can get a running B motor for free

there is a reason a running "B" engine is free

IMHO this is not worth the time or expense to use a "B" engine
3B would be different

 

[TYPE 40 FJ TARDIS]

there is a reason a running "B" engine is free

IMHO this is not worth the time or expense to use a "B" engine
3B would be different

And because we’re total noobs with regard to this world (thank god for you all!) this diversion was over before it had barely begun. We assumed it would be a bolt in and go option, but obviously not. So as soon as life allows we’re going to get a 2F and just see if it can move.

 

[Chamba]

A 5 speed from a 12HT will fit a 2F, but will not fit the B series without swapping the input shaft to make it an H55B.

The B engine is very old tech and remarkably underpowered. They are also relatively hard to get parts for. The 3B, on the other hand is vastly improved. Compared to the B diesel, the 2F will feel like a V8.

 

[Living in the Past]

The B engine very well may be a 2B. This is a BJ41. It's a 41 not a 40 or 42 because of the engine . More like the B than the 3B and harder to source parts for that are different than either the B or 3B.

 

[3_puppies]

And because we’re total noobs with regard to this world (thank god for you all!) this diversion was over before it had barely begun. We assumed it would be a bolt in and go option, but obviously not. So as soon as life allows we’re going to get a 2F and just see if it can move.

that is what this forum is about
ask questions as you go