B crank Bearings Who's are they?

[TK in LA]

Hi guys. Here is my problem. I have a B motor that was rebuilt a long time ago and had insert bearings installed on both the rods and into the main bearings. I'm in the process of rebuilding do to a water leak in the front of the block casting. That part has been fixed and I re-sleeved the block back to standard and it has a fresh valve job on a hardened seat set of Chevy (?) valves with adj. lifters. Here in lies the problem: the mains and rods were both shimmed even though they are inserted. The crank is close but to far out to remove the shims. I'm going to grind the crank to the correct clearances but I'm having difficulty finding the correct bearings. The rods are old AER bearings and I have a question in to them if they are still the same as there latest design. The problem is the mains. Other than a small G in a circle. there is a P/N of C3J C . I have no idea who's bearing they are or what they fit to replace them. They used two sets of bearings on the rear main and the center. Any ideas? Pictures show the markings.

[MrBruce]

TK these are Glacier bearings. Do a search on the internet and you will find the Number

https://www.bing.com/images/search?q...J++C&FORM=IGRE

See if this will take you to them, if not just search for Glacier Engine Bearings

[Dodge]

The brand name is Glyco but I don't recognize the part number, it could be a date
code.
I know in the early days AER engines used this type of set up. You should give him
a call.

Dodge

[TK in LA]

Mr Bruce and Dodge, Thanks for the leads. After further investigation, every bearing has a different marking. See attached. last 2 are the same bearing as is the two pictures before them. I haven't done a search on these yet. Different manufacturers as well. Someone must have been using what ever they had laying around. Thanks again for taking the time!

[TK in LA]

I haven't found the correct number yet but the last pictures show some numbers that look like they cross to Vandervell bearings for an MG Mk2? More research!

[Dodge]

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The 4547 is a Vandervell bearing company bearing. It a a main bearing for an MGA 1622
motor. So that 12H676 is probably the same MGA bearing.
H&H used to also do it this way.

Dodge

[johnneilson]

The Vandervell VP817 is the MGA 1622 which crosses over to a MS-1055G nissan

John

[TK in LA]

Dodge, You're probably pretty darn close. This was a local SoCal car the motor came out of so it very well could have been a H&H motor. Now I just need the clearances for the crank to bearings and see if I still need to go to a .040 under bearing if they're available.

[TK in LA]

John, Thanks for the cross over number. Now I need to find out what Nissan they fit. Lots of research to do. I may even contact H&H and see if they are any help. Again, Thanks to all who checked out my problem and contributed to by previously unknown path to the future.

[johnneilson]

Tom,

too easy;

MS-1055G STD
Nis: 1189(61-66), 1299(65-1969); NisTrk:
1299(68-1969)
Contents: (3)MB-602G

housing bore is 2.146

most newer bearing catalogs do not go back early enough to find the listing.

the metric undersize .25mm = .010 imp
.50mm = .020
.75mm = .030

King bearing makes current bearing in alum, MB-347AM

John

[TK in LA]

John, Your the man!!@ will try and get some ordered in the next couple of days.
Best regards to all!!

[TK in LA]

Just some added pictures of the original layout. As you can see the block bearings in the front and center main use two narrower bearings per spot (Vanderville 4921 / 140111) and a larger single bearing in the cap (Vanderville 4547/12H676). This same bearing is utilized in the rear main cap and block but two the the bearings have .110 taken off one side to clear the added on thrust washers. I guess this will work OK once I can get all the correct parts? Anyway, it's always a thrill to figure out someone else's madness.

[MrBruce]

TK
You might want to just call Rich at Antique Engine in Skokie, Il...he has inserts for the Model A and B engines. The thrust washers and everything is there. You have to buy the rods with it as they are made for the inserts. We used a lot of Volvo bearings in the Model A (as I would send them to guys) when I was with Clevite Engine Bearings. REM in California would get me to send him a lot of bearings as he was inserting them for years. I don't think he is around anymore?

[TK in LA]

Thanks Mr Bruce. I sent an inquiry to AER on the bearings for the rods. The rods have the AER stamp on them just not sure if they are the same. Hate to buy a set or rods just to get bearings. As for mains, if the bearings they sell are different than thos installed it may mean the block will have to be re-machined if possible. Lots of challenges. Good thing we're on lock down>