Oliver 70

[Greenpower]

Bringing an Oliver 70 back to life. In need of sleeves and pistons along with oil pump gear that’s at the end of the oil pump shaft. On the fence of over size pistons and rings. Old sleeves are cracked and rusted up badly.

 

[JOCCO]

Try Korves brothers and look on Ebay. Be setting down when you see the prices!

 

[Greenpower]

I tried korves no luck. Yes they sure know what they want for such items!

 

[Welding man]

Bringing an Oliver 70 back to life. In need of sleeves and pistons along with oil pump gear that’s at the end of the oil pump shaft. On the fence of over size pistons and rings. Old sleeves are cracked and rusted up badly.

I have 3 70"s disassembled right now. and have been trying for over a year to find undersize main and rod bearings. All my cranks need grinding. I have sent one crank to be chrome plated to try and get back to standard. Getting the sleeves bored for Dodge truck pistons. All 3 engines I tore down had different pistons. I rebuilt a 70 for a customer a while back. Steiners had what I needed.

 

[JOCCO]

I tried korves no luck. Yes they sure know what they want for such items!

Wow

 

[scootergmc]

With an Oliver 70 it's generally cheaper to find a good engine and transplant. Unless you're into the originality of the tractor itself, that'd be the way I go. Otherwise Maibach:

BSB178A Sleeve Kit | Maibach Tractor Parts

www.maibachtractor.com

 

[Duner Wi]

I have 3 70"s disassembled right now. and have been trying for over a year to find undersize main and rod bearings. All my cranks need grinding. I have sent one crank to be chrome plated to try and get back to standard. Getting the sleeves bored for Dodge truck pistons. All 3 engines I tore down had different pistons. I rebuilt a 70 for a customer a while back. Steiners had what I needed.

I think these are .010 mains for Oliver 70.

SEALED POWER Engine Crankshaft Main Bearing Set MS-194 M-10 | eBay

Find many great new & used options and get the best deals for SEALED POWER Engine Crankshaft Main Bearing Set MS-194 M-10 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Mains are part # MS194M old Sealed power #s.
Rod bearings are also used in flat head Continentals of same era.
#CB79P and CB78P depending on which cyl.

 

[Greenpower]

Great thanks! Have some research to do. Sure do wanna hop it up some. Sure tempting to see what it would do i a pull.

 

[Welding man]

I think these are .010 mains for Oliver 70.

SEALED POWER Engine Crankshaft Main Bearing Set MS-194 M-10 | eBay

Find many great new & used options and get the best deals for SEALED POWER Engine Crankshaft Main Bearing Set MS-194 M-10 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Mains are part # MS194M old Sealed power #s.
Rod bearings are also used in flat head Continentals of same era.
#CB79P and CB78P depending on which cyl.

This would have been a good option for me a year ago, but I have already bought a complete set of standard bearings and the crank is being finished now, for less than the cost of this set of mains, but thanks any way.

 

[JOCCO]

Great thanks! Have some research to do. Sure do wanna hop it up some. Sure tempting to see what it would do i a pull.

Green don't want to burst your bubble but around me the 70 does not do well in the pulls. This is because it is out classed by later tractors. (antique pulls) If going head on with tractors of its time (Allis WC etc.) it will do ok. I still like the 60 70 Oliver.

 

[Greenpower]

Yah I get that. It’s more or less a competition between a group or old men that are neighbors lol. Boys and toys you know. That’s why trying my best not to put to much money into it. But it’s beyond that point now lol.

 

[scootergmc]

Just FYI Greenpower, but my old man friend mechanic is tearing down a 70 right now that has nice pistons and sleeves. I don't think the sleeves are out yet, but the pistons are. If you want me to ask a price I will. He's not ignorant to the market but he's not out to rip anyone off either.

 

[Greenpower]

That would be great. Do you happen to know if they are over size?

 

[scootergmc]

I doubt it, but I don't know anything yet. I'll know more tomorrow when I'm over there.

Edit: I know there's an oil pump gear too.

 

[craigco]

My 70 got larger pistons out of an old Chrysler car. Machine shop did lots of research to find more common parts to use. Reground cam and modified valves out of a Cummins i belive valve stems same diameter cut faces down to fit seats. Shaved head alot. With 13.6 38 it was hit or miss on pulling depending on the track. Sometimes pulled great other times lose power. They are high geared hard to over come that. Put some 14.9 28 tires on it. Pulls great now. That over came the gearing power loss. They are light mine can get in the high side of the 2500-3500 class.

 

[Greenpower]

That sounds like a fun tractor. This will more or less pull once a year at the county fair. Neighbor hood bragging rights ha ha. So don’t want to put a ton of money in it.

 

[scootergmc]

That would be great. Do you happen to know if they are over size?

Well, we got them all out, pistons and sleeves. Some of the hardest wet sleeves I've ever pulled. Had to use the porta power. Shame the tractor is being junked but that's the way it goes. The pistons, bearings, and sleeve bores all look great. Much better than he expected for a tractor that's been sitting at least 30 years. Barely a wear ridge in the sleeve, mostly carbon. Standard bore at 3.125" however. Problem is the sleeves. Two of them have some deep electrolysis at the bottom. I would run them until I had water in the oil, but that's just me. .

 

[rrlund]

Well, we got them all out, pistons and sleeves. Some of the hardest wet sleeves I've ever pulled. Had to use the porta power. Shame the tractor is being junked but that's the way it goes. The pistons, bearings, and sleeve bores all look great. Much better than he expected for a tractor that's been sitting at least 30 years. Barely a wear ridge in the sleeve, mostly carbon. Standard bore at 3.125" however. Problem is the sleeves. Two of them have some deep electrolysis at the bottom. I would run them until I had water in the oil, but that's just me. .

Use pipe dope paste on them when reinstalling them and they'll last a long time.

 

[scootergmc]

Use pipe dope paste on them when reinstalling them and they'll last a long time.

I have not heard of that. Just rub it onto the pitted areas? Any specific product?

Otherwise I've seen JB weld smeared and cured onto affected areas.

 

[rrlund]

I have not heard of that. Just rub it onto the pitted areas? Any specific product?

Otherwise I've seen JB weld smeared and cured onto affected areas.

Just smear it on instead of soap as a lubricant. It'll harden up, but will let loose if you try to pull them out again. We just use stuff from the hardware store.