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Engine Reassembly

Farmall B & BN Tractors, 1939-1947
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arlen
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Zip Code: 55975

Engine Reassembly

Postby arlen » Tue Mar 23, 2021 12:24 pm

Well I finally have all the parts in hand to start reassembling the block.
What sequence of assembly do you prefer? Put the sleeves in, then the crank, or the crank first. What about the pistons/rods? Do you like to put them in before the crank?
I'm kind of assuming it's best to put the head on while its in the engine stand out of convenience. It would seem that the front cover/pulley could go on in the stand or on the tractor and not make much difference.
Also, the replacement clutch from Steiner's doesn't appear to have a way to thread bolts in to compress the springs for reassembly like the OEM one did. Any ideas there?

SamsFarm
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Tractors Owned: 1968 Cub Fast Hitch
LF-1 Platform Carrier
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L-F194 Plow(s)
F38 Disk
L-F3 Spring Tooth Harrow
CS Bell No. 60 Grain Mill on a unmodified Fast Hitch Disk hitch prong
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Couple 1948 Cubs
172 Runner Planter
53 Fertilizer
Cub-3 Field Cultivator
Cub-189 Two Way Plow
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Re: Engine Reassembly

Postby SamsFarm » Tue Mar 23, 2021 1:19 pm

If it were me, I would probably do;

Sleeves first.
Crankshaft next.
Put the pistons in the bore third.
I would probably attach each rod / bearing / rod cap to the crank as I installed each piston rod assembly!
1968 Cub Fast-Hitch

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arlen
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Re: Engine Reassembly

Postby arlen » Tue Mar 23, 2021 1:37 pm

Sounds reasonable. Any advice on the clutch installation?

SamsFarm
501 Club
501 Club
Posts: 1853
Joined: Wed Jan 20, 2021 8:21 pm
Zip Code: 44410
Tractors Owned: 1968 Cub Fast Hitch
LF-1 Platform Carrier
144 Cultivators
L-F194 Plow(s)
F38 Disk
L-F3 Spring Tooth Harrow
CS Bell No. 60 Grain Mill on a unmodified Fast Hitch Disk hitch prong
Home Made Fast Hitch Potato Plow
54A Blade

Couple 1948 Cubs
172 Runner Planter
53 Fertilizer
Cub-3 Field Cultivator
Cub-189 Two Way Plow
Cub-22 Sickle Bar Mower
Mechanical Transplanter with side mount barrel (needs a fast hitch adapter) :)

Misc Belly Mowers

Wish List
International 100 Fast Hitch Blade
Mott Fast Hitch Flail Mower

Wish Wish Wish List
Fast Hitch Rotary Hoe
4E hammer mill
Location: Ne Ohio

Re: Engine Reassembly

Postby SamsFarm » Tue Mar 23, 2021 1:49 pm

When I had the clutch out of the BN I sold for the pilot bushing replacement, I started each screw attaching the pressure plate into the flywheel, then progressively (little turn on each) worked my way around alternating from one side to the other until they were snug then torqued them last.

If for some reason your screws are too short to grab into the flywheel, you might have to start with some longer ones and draw the pressure plate up close, then replace those screws with the proper ones (one at a time)!
1968 Cub Fast-Hitch

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arlen
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Re: Engine Reassembly

Postby arlen » Tue Mar 23, 2021 2:00 pm

SamsFarm wrote:When I had the clutch out of the BN I sold for the pilot bushing replacement, I started each screw attaching the pressure plate into the flywheel, then progressively (little turn on each) worked my way around alternating from one side to the other until they were snug then torqued them last.

If for some reason your screws are too short to grab into the flywheel, you might have to start with some longer ones and draw the pressure plate up close, then replace those screws with the proper ones (one at a time)!


Thanks! and that cheesy plastic alignment "tool" that came with the clutch kit is to align the clutch to the pilot bushing?


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