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Old 04-10-2007, 04:52 PM
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Need help finding a rod bearing for the youngsters Hot rod

Hello, I am working on the kids hotrod at the moment. We also pull garden tractors when dad(me) isn't working on the truck.

I need a rod bearing designed for a 1.575-1.600 crank pin. Width isn't critical, but needs to be under .750 so less machining is required. It needs a wall thickness around .0585-.060. My big end of the rod I am using can go out to a 1.6940. The current rod is just aluminum with no bearing material. I have had a set machined for .0035 oil clearance but when you buzz the engine up to 6000 they don't last that long before the rod glues itself to the crank. Basically I am machining a non insert bearing rod for a bearing insert for the reliability and I'm trying to get a season out of the engine without catastrophic failure.

Oh, The engine is a Briggs and Stratton 180 degree opposed twin flathead. The kids need to get interested early in life and as of now my 7 year old daughter is a real gear head.

If anyone can help I'd sure appreciate it. My local performance machine shop says there to busy for this kind of thing.
Thanks Dennis
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Old 04-10-2007, 06:56 PM
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Maybe this will work for you.

This is odd but very first bearing I looked at would be almost perfect I think.

Its for a Toyota 1295cc, 1425cc, or 1587cc

I see them listed under GM engine too so this is probably out of that little Toyota-Nova car also know as the "Toylet".


Federal Mogul part # 1025RA

std shaft diameter 1.574-1.5748

parent bore diameter 1.6931-1.6939

wall thickness .0587

bearing width .673
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Old 04-10-2007, 07:54 PM
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Thanks for the reply Greg. I will give that a shot. If you find a bearing close to what I need with a thinner wall thickness could you please post the part number. The thinner I can get one, although they probably don't come any thinner than .050, the better.

Has any one ever done this before. I know its been done to kohler single cylinders and I've heard of it being done to some model t or a engines.

Dennis
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