Opinions for 47 Engine?

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BigBill
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Re: Opinions for 47 Engine?

Postby BigBill » Wed Jun 24, 2020 1:43 pm

I use honing oil it washes the stones free of grit. I do as I was taught in trade school.

https://www.enginehones.com/honeoil2.html
Last edited by BigBill on Wed Jun 24, 2020 2:09 pm, edited 1 time in total.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

BigBill
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Re: Opinions for 47 Engine?

Postby BigBill » Wed Jun 24, 2020 1:49 pm

The cheapest way an engine can be rebuilt is to let a shop bore it to the new pistons.
First take the valves out clean them and lap them checking the guide wear. Let the shop bore it. Then wash it and assemble it after fitting the rings. Or use the old parts with new rings.

I heard this motto once there’s no money to do it right the first time but plenty of money to do it over, I’m frugal too.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

ntrenn
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Re: Opinions for 47 Engine?

Postby ntrenn » Sat Jun 27, 2020 10:13 pm

Ditto that on shop boring to the new pistons. If you look at the fitment from the factory, there were 4 different select for pistons that were used to keep the piston clearance within spec. They were fitting these engine to the 0.0001 in the 40’s!!!
The last time I checked boring a block, the number was $20 a hole on a v8 Chevrolet, valves were $3.00 each hole, cranks were about $100 all in. Hamilton bob sells the complete rebuild kit reasonable. Still can’t see spending more than what two tractors cost at the machine shop..,

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SONNY
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Re: Opinions for 47 Engine?

Postby SONNY » Sun Jun 28, 2020 11:19 am

Car motors are a different set-up and not even close to cub motor---cub is too small to hold in the fixtures and has to be "rigged" so ya, cost is gonna be more. ---- also pistons are so small--- again special setups.


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