Factory 310T wrist pin bushing change?

Adam Suess · Dec 10, 2014

Did any 310T's come factory with one piece wrist pin bushings? If so when was the change made? I have a 1974 1855 with the oil cooler and it doesn't appear that the head has ever been of the engine. Paint is still complete on the head bolts.

BM · Dec 10, 2014

They were never put in at the factory. Even 2-70's had 2 piece bushings.

The 1981 service bulletin addressing improvements for the 310 while overhauling doesn't even mention pin bushings.

Kell · Dec 10, 2014

Does it have the rod bolt update? Thinking the rod bolt was the more critical of the two updates.

Adam Suess · Dec 10, 2014

It has 6pt rod bolts. Some where along the line some one redid the pan to hold more oil. I'm installing a new turbo tonight. Other than that it looks like it's original 4,xxx hrs. I have new bolts on the way. I Might roll in new bearings and feel how worn the pin bushings are. Kinda worried about the crank being worn a little and new bearings causing one to spin.

old1850d · Dec 10, 2014

IMHO the rod bushing thing is a big deal, It would be well worth the look .If this tractor is a keeper and if you dont work the crap out of it, fix it right and enjoy it for years

BM · Dec 10, 2014

Look up at the wristpin when the pan is off. If you see any pin bushing sticking out of the rod, keep taking it apart.

Adam Suess · Dec 10, 2014

I fear that is what is going to happen. Any sign of a bad bushing is a no go.

J. Schwiebert · Dec 10, 2014

The first year I worked for the Oliver dealer (1960) we had 1 77 and 2 Super 88 diesels that the wrist pin bushings worked there way out of the rod and they put a hole in the block. Myself I worry more about those bushings than the bolts. Make sure you get the big end of the rods sized as well. I would pull it down and do it right.

johns · Dec 11, 2014

Hey Brad any guess why Oliver/White took so long to fix this problem? With the 40-60hp 77-880s even putting holes in blocks its not like it was only a problem on a 310. Wonder why they thought two bushings side by side was a good idea in the first place?

J. Schwiebert · Dec 11, 2014

No proof of this, but the original bushings were not steel backed so when they failed in a Fleetline or early Super diesel it was the old style bushing and due to the diesel making more noise than a gas engine you could not hear them. The steel backed bushings took care of the problem until the 310 direct injection engines pretty well. Other engine manufactures also had problems with wrist pins and bushings, Look up some older Deere engines sometimes they have 2 sizes (300 series engines), Hercules changed the thickness of the pins in the early 570 tractors. I had a 2150 one time that the bushings worked loose on the rod as well as well as an Oliver 60.

BM · Dec 11, 2014

What John said in reference to the older tractors pretty well sums it up for them. As far as the newer ones go, White Motors didn't care much about improving anything, as long as the farm equipment was still making enough profit to keep their truck business afloat.

bock · Dec 11, 2014

320 engines are bad about it too had one that had 3 working loose ,olivers really like to throw arod out the side but some will run forever.

Factory 310T wrist pin bushing change?

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