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Massey Harris & Massey Ferguson Tractors Discussion Forum
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G 176 rod and main bearing torque specs

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conglomer

11-20-2023 07:11:47




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I've spent some time looking for the rod and main bearing torque specs for my 1958 MF 65 gas with a Continental G 176 engine. I have not been able to find them. Being a newbee, I might not know where to look. I should be getting the bearings today. Any help would be appreciated.
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conglomer

11-21-2023 09:18:38




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 Re: G 176 rod and main bearing torque specs in reply to conglomer, 11-20-2023 07:11:47  
OEM manual ordered. Thanks for the help. Now I'm going to try to figure out how to do this.



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Eric in IL

11-21-2023 05:20:15




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 Re: G 176 rod and main bearing torque specs in reply to conglomer, 11-20-2023 07:11:47  
I'd recommend getting a service manual from AGCO/Massey if you can. I have one and also a manual from I.T. The I.T. manual I have has incorrect information on the valve train assembly. They tell you to orient the rocker shaft in a way that blocks oil flow to the rocker arms.

The oem Massey manual has more information and is easier to understand.



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conglomer

11-21-2023 03:33:04




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 Re: G 176 rod and main bearing torque specs in reply to conglomer, 11-20-2023 07:11:47  
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So, I guess I will order a shop manual. I am wondering how I will split the tractor with floor jacks. I hope that if I get it apart I can find the right parts. I'll try to review as many of these posts here as I can. It had a new clutch recently. It doesn't have a whole lot of time since it had a valve job back it the 80's. The spark plugs have oily deposits on them. I only use it for mowing 4 acres and for the Souder loader, which I couldn't do without. We'll see what happens. Should be fun. My Father bought this tractor new in 1958. The picture is of me in the 60's.

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Eric in IL

11-20-2023 15:58:59




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 Re: G 176 rod and main bearing torque specs in reply to conglomer, 11-20-2023 07:11:47  
Crank shaft end-play is ,004-.008 inch.



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conglomer

11-20-2023 15:19:11




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 Re: G 176 rod and main bearing torque specs in reply to conglomer, 11-20-2023 07:11:47  
Thank you Tractor expert and Tractor Guru for the responses. My plan indeed was to replace the rod bearings because I thought I might have heard a knock one time, and while I am doing that, I thought I'd go ahead and replace the front and middle mains. I was not considering splitting the tractor. I do not have a service manual. I just checked, and the good news is that the rod bearings and the crankshaft journals all look good enough to go. Nothing I can catch a fingernail on. It looked like the original bearings. I did an oil test earlier, and the lead was 200 ppm. I thought maybe I'd get lucky, but now I am concerned about excessive end play. .032 inches. I didn't think to check that earlier. What is the crankshaft end play supposed to be?

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Dieseltech

11-20-2023 14:47:36




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 Re: G 176 rod and main bearing torque specs in reply to conglomer, 11-20-2023 07:11:47  
I HOPE you have a service manual. The rear seal SHOULD be removed before removing the rear main cap, and that means a split and clutch/flywheel removal. There are five seal carrier bolts, three on the flywheel side and two THROUGH the rear main cap. I would not recommend just rolling in new bearing shells on that engine.



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Eric in IL

11-20-2023 08:04:10




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 Re: G 176 rod and main bearing torque specs in reply to conglomer, 11-20-2023 07:11:47  
The connecting rods are 40-45 ft.-lbs.

The main bearings are 85-95 ft.-lbs.



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