Farmall 100 need help identifying bolts

couv · Sep 15, 2009

OK Experts :
I'm finally wrapping up my 100.

The hydraulic lines from the pump to the Touch Control block :

My parts book doesn't list the bolts mounting the front flange to the hydraulic pump. They appear to need to be about 3/8 " Fine Thread X 2 1/2 " long, with a standard lock washer and nut. (2) required.

The book does list the bolts to mount the Touch Control end as "Part Number" bolts (#353331R1),and show them with some kind of washer, BUT DOES NOT describe them as 3/8 " Course Thread X 1 1/4 ". WHY aren't they a measurement bolt --- what is special about them? Can I use (3) "measurement bolts" ? What is special about the (3) wahsers ?

Hugh MacKay · Sep 15, 2009

couv: I had my 130 apart last week, 3/8" coarse thread with lock washer, is what I encountered. Can't tell you the exact length, but bolt comes about one thread past nut, when tight.

I must have replaced these when I installed a clutch in 2001 as they are relatively new grade 8 bolts.

Hugh MacKay · Sep 16, 2009

couv: I doubt if grade 8 bolts are required. I expect grade 8 was the only bolt I could get at the time in the right length. Something tells me those are 2-1/4 or 2-3/4 rather than 2-1/2.

TractormanNC · Sep 16, 2009

Hey Couv,

The bolts at the pump end are indeed 3/8 fine thread with a lockwasher and nut. IIRC they are a special length. Standard grade 5 bolts of the correct length will work fine.

At the block end, standard grade 5 bolts of the correct length will work fine. Sorry can't help with the length. IIRC there are NO lockwashers under these bolt heads.

HTH

Farmall 100 need help identifying bolts

couv

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Hugh MacKay

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Hugh MacKay

Well-known Member

TractormanNC

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