1936 RD4 4G132 vs 1937 RD4 4G6263 whats the difference in main bearings??

nielske
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3 years 9 months ago #224079 by nielske

1936 RD4 4G132 vs 1937 RD4 4G6263 whats the difference in main bearings?? was created by nielske

We wanted to switch the cranck with all the bearings from the 4G6263 to the 4G132.
The engines are both a 4400...
But now we discover a difference, the Bearings wont fit in the 1936 moddel block because the outside diameter from the 1937 model bearings are taller.

I have a lot of parts manuals but not the right one for these 2 engines, So can somone tell me the difference between these 2 engines with a scan out of the parts manual?

Thanks Niels

D2 5U 15709
D2 4U 1131
D4 7U14815 Trackson HT4
Ransomes C.1E Subsoiler

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gauntjoh
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3 years 9 months ago #224081 by gauntjoh

Replied by gauntjoh on topic 1936 RD4 4G132 vs 1937 RD4 4G6263 whats the difference in main bearings??

Dag Nielske,

I hope you are well.
We have been given a quantity of electronic "Legacy Manuals" which we intend to make available in the members section when the "dust has settled".
I will see if the ones you need for your D4 4G tractors are among them and if so I will send you copies.

Tot Ziens John

John Gaunt, ACMOC President and Director, UK

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rax200
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3 years 9 months ago - 3 years 9 months ago #224089 by rax200

Replied by rax200 on topic 1936 RD4 4G132 vs 1937 RD4 4G6263 whats the difference in main bearings??

Hi Neil's,
Here is a copy of the different bearings used in an RD4.

Regards

Daryl

1937 RD4 4G4368
1940 D4 7J3717
1942 D4 7J9915SP
1942 R4 6G2550SP
1944 D4 2T6584SP
1945 D4 2T8978SP
1946 D4 5T6271
1956 D4 7U37855
1954 DH226 S/N 89 Howard Tug

Last edit: 3 years 9 months ago by rax200.

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1936 RD4 4G132 vs 1937 RD4 4G6263 whats the difference in main bearings??

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