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Old 03-12-2009, 06:41 PM
VW cat VW cat is offline
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Default Clark resurrection

I started on the 4-53 engine out of this Clark forklift yesterday. Took the cylinder block to a machine shop for cleaning. She's a gem, a tandem too, even has a heater. Phil
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Old 03-12-2009, 07:03 PM
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greywynd greywynd is offline
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I'm hoping it was an indoor project yesterday...turned awful cold with that wind!!

Looks like it could be an interesting project though, certainly would be a handy rig to have around.
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Old 03-12-2009, 07:36 PM
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pretty sweet. looks like a beast of a machine.

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Old 03-12-2009, 08:44 PM
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Sweet machine. I worked at a place had a 15,000 lift Eaton, and that was one good forklift. Dual semi truck drive tires up front, 7' forks, and a whole lotta lift. Only problem was ours had a inline 6 Ford running on propane. Diesel would've been so much nicer, but we used in the shop alot too.
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Old 03-30-2009, 05:23 PM
VW cat VW cat is offline
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I got the engine block back from the machine shop, with new cam and balancer bearings installed. He said it was the worst block he had ever seen and put it in the hot tank 5 separate times.

I checked the liner counter bore and it was okay at .300" to .302". I used vegetable oil on the liner o-rings and the liners slid right in.

The exhaust port on #4 was completely plugged with carbon. I put the exhaust manifold in the wood stove to cook it. The machinist had to use a drill to unplug the cylinder head exhaust port.

Cleaning up around the transmission I realized that this is not the original engine/trans. I was able to borrow the engine service manual too. Boom says 10,000lb capacity. Phil
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Old 03-30-2009, 09:38 PM
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Looking really good there, Phil.
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Old 03-30-2009, 09:57 PM
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Phil that engine looks good, Is it a GM engine? That fork is going to be awesome 10,000 lb. cool. Kevin
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Old 03-31-2009, 10:57 AM
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Last spring I renewed the head/deck seals in a 6-71, one liner had sunk and combustion gases blowing by the fire ring had blown the cooling passage seals. Patch job for a good customer, he didn't want me to pull the pan so I ended up slitting a shim to get it under the liner flange. I told him no warranty, just talked to him yesterday and he is still very happy, says it runs like a champ, maybe because it in a 600 Champion grader. Same thing as yours in reguards to plugged exhaust ports, someone told it was due to running multigrade oil, not sure myself.
Just love the sound of any Jimmy diesel.
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Old 03-31-2009, 09:47 PM
bgott bgott is offline
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Detroits used to spec low ash oil. Probably because of the port plugging problem. Chevron used to sell Delo 100 and Delo 400, one was for Detroits and one was for everything else. It's been a few years, I can't remember which was for which.
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Old 04-01-2009, 09:40 AM
chevyoneton chevyoneton is offline
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Location: North Florida
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Nice thread, love to see old equipment brought back to use. I just picked up an old H80C Hyster (8,000lb, 14 foot lift, dual wheels and a Continental F227 gasser) a couple of weeks ago. I have done a few small repairs on it and it still needs a few cylinders rebuilt. I will try and post some pics as soon as I take some and figure out how to post them. Keep the pictures and updates coming on your project please!
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