4spd in an f engine (1 Viewer)

[65swb45]

Yup.

 

[Josie'sLandCruiser]

Hi All:

Sweet! Thanks for the info Mark!

Alan
Seattle

 

[Poser]

ok drawing a blank, is the input shaft seal the same as the rear main seal, or is that the seal that goes between the tranny and t case?

Thanks, Chuck

Chuck-


I did not see where anyone had answered your question...





Rear main seal- Located in the cylinder block and rear main bearing cap on the F and 2F engines. Far easier to change when you change out the pan gasket at the same time, (which I would bet is leaking, and not the main seal ) as you can drop the main bearing cap, clean out the groove for the oilpan gasket easier, remove the old seal by hand, and install a new one with very little effort or risk of damage, tourque the four maincap bolts and call it good.




Transmission input seal- Located inside the eight bolt housing on the front of the transmission (four speed), four bolt housing on a three speed trans. Remove the bolts, pop the housing off, remove the old seal and install the new one with the spring in the seal towards the transmission.




Trasfer case input seal- Located in the transfer case housing, between the transmission and transfer case. The transfer case input gear has a 'nose' on it providing the sealing surface that the seal rides on. ( early split cases are similar, but post 1983 or ? they have a wear sleeve that the seal rides on instead ) This seal should be installed with the spring towards the transmission. Similar to the transmission input seal, it can be a bit tricky to install without damaging, but you can get it.



With any seal installation I learned long before I could operate a motor vehicle that you do not purchase one seal and expect to install it correctly the first time. Seals, relative to down time, UPS next day air charges, etc. are very inexpensive.


Good luck!


-Steve

 

[CruisinTiger]

Thanks a bunch Steve!! Didn't even think of attackin the oil pan gasket. And you're probably right with it leakin...there is oil on the oil pan so it's gotta be leakin. And I should get the one piece OEM gasket for the oil pan. Is the Main bearing cap got 2 bolts holdin it together? When I took off the fly wheel there is this piece that is stickin about inch or so and is circular, is that the main bearing cap?

Thanks, Chuck

 

[Poser]

And I should get the one piece OEM gasket for the oil pan. Is the Main bearing cap got 2 bolts holdin it together? When I took off the fly wheel there is this piece that is stickin about inch or so and is circular, is that the main bearing cap?

Thanks, Chuck

I only use OEM gaskets, especially the one piece pan gasket...


The rear main cap has four bolts....two you can see now, and the other two you will see when the pan is down....the rear part of the pan gasket sits in the middle of the main cap...yes you can see half of it right now....


Take your time and don't be in a rush. Make sure things are clean when you put them back together. Get yourself some string to tie the pan gasket to the pan to help keep it in place when you are messing with it....oh, and longer 8mmx1.25 bolts...some that are 40mm long or so...they will be easier to start and will allow the pan to hang on them while you MAKE SURE the ends of the gasket are in the groove on the ends of the front and rear main bearing caps...I use some Ultra-Black Sealant on all surfaces of the gasket on both ends, and nothing in the middle..I do not have oil pan gaskets come back for leaking.



Good luck!


-Steve

 

[CruisinTiger]

Well almost have everything apart and ready to be cleaned...gonna remove the bellhousing soon and put the 4 speed on and then it'll be go time. I can see the light at the end of the tunnel!!

 

[Mikesta]

Do the F and 2F engines take both housings?

Example. 1982 2F 4 spd bellhousing on a 1971 engine?
Example. 1971 F 3 spd bellhousing one a 1982 2F?

 

[Josie'sLandCruiser]

Hi All:

Hi Mike!

Yes, I believe the "F" and "2F" bellhousings share the same engine bolt pattern.

It is common to use a "F" engine bellhousing on a "2F" when performing an SM420 swap.

One can use either the "F" or "2F" clutch parts as long as *all* the bits are ulitized as a kit.

Regards,

Alan

 

[Mikesta]

Thanks, should have started a new thread... sorry to hijack yours...

good thread by the way... wasnt even thinking of doing this 4spd swap until I saw this!

 

[Mikesta]

Oh and Hey Alan, we finally meet on mud... bwa ha bwahahahaha.

Going out to the back to grab the 60 series 4 speed tomorrow to bolt up to the 3 speed transfer. Also getting the bellhousing from the 60 series.. might be a fun day tomorrow.

 

[65swb45]

Oh and Hey Alan, we finally meet on mud... bwa ha bwahahahaha.

Going out to the back to grab the 60 series 4 speed tomorrow to bolt up to the 3 speed transfer. Also getting the bellhousing from the 60 series.. might be a fun day tomorrow.

If you've got a t-case imput gear that will fit on to a 60 series tailshaft, I would LOVE TO SEE IT! AFAIK, no such animal exists.

 

[Josie'sLandCruiser]

Hi All:

Yeah Mike - the H42 "four speed" tranny used in the 60/70 Series uses a different rear output shaft than the earlier H42s used in mid to late 1070s era 40/45/55 Series TLCs.

The 1970s era H42 can be bolted up to the "three speed" transfer case; the 1980s era H42 has a different spline count on the output shaft.

Sorry hombre but "no go!"

Regards,

Alan
Seattle