B Sealed Pilot Bearing
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=130782
Printed Date: 28 Oct 2025 at 2:47am
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Topic: B Sealed Pilot Bearing
Posted By: 00transamnh
Subject: B Sealed Pilot Bearing
Date Posted: 02 Nov 2016 at 9:52am
|
I have just completed the engine rebuild on my 1940 B and am realizing that the shop that reworked my crank removed the oil wick. I think I would like to use a sealed pilot bearing and plug the crank hole. Does anyone have a pilot bearing part number to do this? Is there a direct replacement that doesnt involve machining the flywheel? |
Replies:
Posted By: CAL(KS)
Date Posted: 02 Nov 2016 at 9:56am
|
just get a sealed version of the old bearing or simply measure width, id and od ------------- Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15 |
Posted By: Dick L
Date Posted: 02 Nov 2016 at 10:28am
| It's not going to happen! There is not enough room between the inside diameter and the outside diameter to put ball bearings in. The pilot bearing in your flywheel is actually a bushing. The only way would be to have the flywheel bored for a sealed bearing. |
Posted By: CAL(KS)
Date Posted: 02 Nov 2016 at 10:34am
|
oops my mistake, i dont have a b. was just assuming a bearing like wc with a wick ------------- Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15 |
Posted By: 00transamnh
Date Posted: 02 Nov 2016 at 11:59am
| Ok thanks Dick. So that said, what pilot bearing have you folks been using for this conversion? |
Posted By: scott in tenn
Date Posted: 02 Nov 2016 at 2:00pm
| I bought oil impregnated bronze bushing. Drilled and tapped crank for plug. Has worked fine for me. Scott |
Posted By: steve(ill)
Date Posted: 02 Nov 2016 at 4:09pm
|
I just greased the stock bushing and reused it....not uncommon for old tractors and trucks........ The oil impregnated bushing sounds like a good idea. ------------- Like them all, but love the "B"s. |
Posted By: CrestonM
Date Posted: 02 Nov 2016 at 4:21pm
| This may sound dumb...I've heard of oil impregnated bushings before, but what are they? How do they work? Do you have to lube them? |
Posted By: Dmpaul89
Date Posted: 02 Nov 2016 at 4:27pm
| did a clutch on like a 2002 chevy S10 pickup and they still used bushings in those. i was suprised by that. any way to save a buck |
Posted By: Dick L
Date Posted: 02 Nov 2016 at 6:13pm
http://www.mcmaster.com/#standard-red-metal-rods/=14vc5s9" rel="nofollow - http://www.mcmaster.com/#standard-red-metal-rods/=14vc5s9 Click on ----
Self-Lubricating Oil-Filled SAE 840 and 841 Bearing Bronze |
CrestonM wrote:Posted By: 00transamnh
Date Posted: 03 Nov 2016 at 12:58pm
|
Anyone have a source for oil impregnated bushings? I am having a hard time finding them. Looks like I need a 1-1/8 od x 7/8 id x 1 length |
Posted By: 00transamnh
Date Posted: 03 Nov 2016 at 1:29pm
| For future reference, it looks like McMaster Part Number 6391K273 is what is needed for an oil impregnated bushing. |