[AT] John Deere Head Lead Washers

[deanvp]

The drain plugs at the bottom were intended for compression release valves.


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-------- Original message --------From: Robert <rholtzer at earthlink.net> Date: 9/1/16  4:42 PM  (GMT-08:00) To: Antique tractor email discussion group <at at lists.antique-tractor.com> Subject: Re: [AT] John Deere Head Lead Washers 
Long time since I rebuilt my 1948 B.  The lead washers form a seal -- 
hence the crush you noted.  Also the pistons don't come to the deck.  I 
think the drain valves under the engine tap into the top of the bore.  
Sorry can't be of more help.  Might try John Boehm on this net.  He is a 
JD guru.

Bob Holtzer


On 9/1/2016 11:43 AM, Ray Trimble wrote:
>      I Just completed installing the cyl head on my 1940 B using the lead washers. I am no mechanic but I rememberJR Hobbs being adamant that they must be used. What is the purpose of these washers? I noticed as I came to the required torque they started to crush and surround the nut.
>      This tractor was stuck, I got it freed by attaching a come-a-long to the front of the frame and the flywheel and a lot of penetrating oil reversing the pressure on the flywheel. There was a discussion on the list here on how to get a engine unstuck. What I saw after I got the head off I would never run a engine after it was stuck without cleaning the cylinders. I pulled handfuls of crap out of them, and this tractor had not been stuck all that long.
>      What I thought was interesting was the low compression enging. All engines I have seen the piston comes at lest even with the deck, this engine they came about a inch below the deck.
>      On EBAY I ordered all three gauges for 24.00. They are new and new (white face) from India shipment takes about a monththe last I checked the tracking they are in Dallas. We'll see when they get here if they are worth the money.
>      One thing I can laugh at now. When I installed one of the pistons in I puched it too far and the oil ring came out of the cylinder. I am lucky that I have small hands and could get a ring compressor on it and push it forward. Very small space and and awkward angle.
>      Also I have never before set the clearance of the rod bearings using shims.
> Looking fowards to get it running.
> RayJD 1940 bJD 1950 MTFarmall 1947 HFarmall 1949 CubAllis 1958 D10 Or D12 don't know which
> MF 1958 65 Propane my goto tractor
> PS: there was a discussion about a JD 430 V, I had one and sold it about 12 years ago, put  ad in Green Mag. I had People fighting over it to buy it.Did not make friends with the people who didn't get it.
>
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