Difference in Block Castings 31 -33

  • curtiss
  • curtiss's Avatar Topic Author
  • Offline
  • Forum Contributor
  • Forum Contributor
More
18 Dec 2017 04:05 - 18 Dec 2017 04:07 #33874 by curtiss
curtiss created the topic: Difference in Block Castings 31 -33
We have a 1931 and 1933 along with a spare engine I think is a 1931. I am trying to find out what the difference is if any in the casting numbers. Are there any major differences between these other than the 31's are 98 and I believe the 33 is 105?

Today while working on the 1931 spare engine we notice the passenger side motor and generator mount is removable with 3 bolts but on the 31 and 33 engines we have that mount is cast into the block and not removable. I looked in the parts list the part A2-164 Engine Front Support appears to be removable I guess up to engine number 73271.

1931 8-98 block casting number of GU100 D (C1) GU74969

1933 8-105 with a block casting number of G1000 (M28)

!931 Spare? with a block casting number of GU100 CC (H25) GU68870
Last Edit: 18 Dec 2017 04:07 by curtiss.

Please Log in or Create an account to join the conversation.

More
18 Dec 2017 12:56 #33876 by Curt Schulze
Curt Schulze replied the topic: Difference in Block Castings 31 -33
Serial number data

The bitterness of poor quality remains long after the sweetness of low price is forgotten.
Be of Good Cheer
Curt
Attachments:

Please Log in or Create an account to join the conversation.

  • curtiss
  • curtiss's Avatar Topic Author
  • Offline
  • Forum Contributor
  • Forum Contributor
More
18 Jan 2018 21:31 - 18 Jan 2018 21:42 #34025 by curtiss
curtiss replied the topic: Difference in Block Castings 31 -33
OK, I am figured out a little more about these two engines:
1931 8-98 block casting number of GU100 D (C1) GU74969 (Late 1931)
!931 Spare? with a block casting number of GU100 CC (H25) GU68870 (Early 1931)

With this block casting is there a way to figure out what model a G1000 is? All of the parts look to be comparable to the other two GU's , is there a way to find out if they parts are interchangeable?

1933 8-105 with a block casting number of G1000 (M28)
Last Edit: 18 Jan 2018 21:42 by curtiss.

Please Log in or Create an account to join the conversation.

Time to create page: 0.056 seconds
Powered by Kunena Forum