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Traxcavator disease

Traxcavator disease

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yieldmap
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So, a few weeks ago I got the Traxcavator disease. We bought the 933 off Peter Marano from the For Sale section. Then a few days later I remembered that the fellow we bought the 212 MG from had an old Traxcavator in his back lot. I stopped by, and sure enough it was another 933, only 26 serial numbers from Peter's one. It had a Hyster D2N winch on the back (which I really wanted) so we loaded it and came home.

We pulled it off the trailer, pull-started it and found the noise that made the former owner stop running it. Running on 3 cylinders, banging loudly on 1. As any naive proud owner would do, we pulled it in the shop and started taking the head off, thinking the noise was in the top half. Turns out it was not. That was last Saturday, and we decided we would take off all the good parts and scrap the rest. After all, it had a good direct electric start, bellhousing, generator and bracket, D2N winch, head, radiator, etc.

That was last Saturday. This Saturday we decided it was good enough to keep, so we started taking the engine out. After torching all the bolts to heat them and break them loose (of which about half came out, half broke off), we had the hardnose, hyd pump, radiator, and all the sideshields off. We left her today just about ready to pull the engine. The only remaining pieces are to pull the rear belly pan, drain the oil clutch, and uncouple the driveshaft and remove the clutch housing from the flywheel housing. After a couple of beers, we had ourselves talked into an overhaul and paint job since we will have it almost completely disassembled.

Funny how it goes from scrap to restore!!!

So, am I correct that to remove the engine, we need to remove the rest of the clutch housing bolts, disconnect the driveshaft behind the clutch, and pull?

Sam
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Sun, May 17, 2009 10:47 AM
B4D2
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Without damping your enthusiasm, as I own a 933 myself, may I ask what is holding up the loader arms and bucket? Please tell me there is a hoist hooked to it, but is out of sight. I would be very concerned about working under that whole loader mechanism while dis-assembling the panels and motor. If the worst were to happen, there wouldn't be time to clear out. Good luck with the "new" 933. I would love to see pictures, but please be careful.
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Sun, May 17, 2009 11:13 AM
Deas Plant.
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Reply to B4D2:
Without damping your enthusiasm, as I own a 933 myself, may I ask what is holding up the loader arms and bucket? Please tell me there is a hoist hooked to it, but is out of sight. I would be very concerned about working under that whole loader mechanism while dis-assembling the panels and motor. If the worst were to happen, there wouldn't be time to clear out. Good luck with the "new" 933. I would love to see pictures, but please be careful.
Hi, B4D2.
Maybe my ol' eyes is failin' me but I seem to see a safety bar atop the right hoist ram. You wanna hava nuther look?

Hi, Yeildmap.
Good catches and happy restoring. I can't help you with removing the engine 'cos I've never been into the bowels of one of those little jiggers but it does sound about right.

You have a wonderful day. Best wishes. Deas Plant.

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Sun, May 17, 2009 12:08 PM
Old Magnet
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Reply to Deas Plant.:
Hi, B4D2.
Maybe my ol' eyes is failin' me but I seem to see a safety bar atop the right hoist ram. You wanna hava nuther look?

Hi, Yeildmap.
Good catches and happy restoring. I can't help you with removing the engine 'cos I've never been into the bowels of one of those little jiggers but it does sound about right.
Is the direct start conversion a Cat original or one of the retro fit units....there is a difference. The original helical drive on the D2 is a smaller diameter (by 1/8 in.) than the retro units that use the common later drive. This difference effects the location of the starter mounting hole location. The retro fit mounting will also fit the D4/6 but the original and retro will not interchange in the same mount on the D2/933 11A (without modification to get the drive to fit).
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Sun, May 17, 2009 12:56 PM
catsilver
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Reply to Old Magnet:
Is the direct start conversion a Cat original or one of the retro fit units....there is a difference. The original helical drive on the D2 is a smaller diameter (by 1/8 in.) than the retro units that use the common later drive. This difference effects the location of the starter mounting hole location. The retro fit mounting will also fit the D4/6 but the original and retro will not interchange in the same mount on the D2/933 11A (without modification to get the drive to fit).
I don't like the look of that safety bracket, it needs to be held with a 'U' bolt and you need one each side with that section of angle, there won;t be any warning when it comes down, I know, I've been standing in the engine space when a set of arms came down.
You still have to lift the back end 12" and unbolt the cross bar from the main frame and bottom of the engine, lifting the front of the frame 12" to get the engine out. The rest of your plan is OK, but for goodness sake make sure those safety bars are installed and secured.
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Sun, May 17, 2009 4:56 PM
catsilver
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Reply to catsilver:
I don't like the look of that safety bracket, it needs to be held with a 'U' bolt and you need one each side with that section of angle, there won;t be any warning when it comes down, I know, I've been standing in the engine space when a set of arms came down.
You still have to lift the back end 12" and unbolt the cross bar from the main frame and bottom of the engine, lifting the front of the frame 12" to get the engine out. The rest of your plan is OK, but for goodness sake make sure those safety bars are installed and secured.
On the later 933F &G machines it was also necessary to remove the pivot bar end caps and loosen the rear track frame clamp bolts, I would suggest taking a close look to make sure the track frames will turn on the pivot bar as you lift the front of the loader frame way from them.
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Sun, May 17, 2009 5:35 PM
SJ
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Reply to catsilver:
I don't like the look of that safety bracket, it needs to be held with a 'U' bolt and you need one each side with that section of angle, there won;t be any warning when it comes down, I know, I've been standing in the engine space when a set of arms came down.
You still have to lift the back end 12" and unbolt the cross bar from the main frame and bottom of the engine, lifting the front of the frame 12" to get the engine out. The rest of your plan is OK, but for goodness sake make sure those safety bars are installed and secured.
Any time you have a bad knock in these engines first take a 3/4" wrench and open up each fuel line one at a time and see if the knock disappears.100s of times I,ve found many times a bad knock as just a bad fuel injector nozzle and you can,t believe the knock they can cause and can be like someone in there with a big hammer.If you can pin it to one cylnder then switch that nozzle with another one and see if the knock follows the change and if so then you have about a 100% change it being a bad spray nozzle.
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Sun, May 17, 2009 5:43 PM
yieldmap
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Reply to SJ:
Any time you have a bad knock in these engines first take a 3/4" wrench and open up each fuel line one at a time and see if the knock disappears.100s of times I,ve found many times a bad knock as just a bad fuel injector nozzle and you can,t believe the knock they can cause and can be like someone in there with a big hammer.If you can pin it to one cylnder then switch that nozzle with another one and see if the knock follows the change and if so then you have about a 100% change it being a bad spray nozzle.
SJ - good idea on changing injectors. Unfortunately the #1 piston is loose from the rod. I can move the crank 1/4" or so with #1 piston not moving at all. Either a broken piston or bad wrist pin.

Thanks all for the info on safety. We cut two angleirons exactly the same length and have one on each lift cylinder with the loader pressure on them. Good thought on the u-bolts though. I'll see if we have some in the shop.

I wondered if the crossbar needed to be removed or not. After we clean underneath, we'll have to see what comes off there. It would make sense the engine bolts to the crossbar. Hopefully that's it, crossbar and clutch housing and coupling.

Thanks,
Sam
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Sun, May 17, 2009 8:39 PM
B4D2
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Reply to catsilver:
I don't like the look of that safety bracket, it needs to be held with a 'U' bolt and you need one each side with that section of angle, there won;t be any warning when it comes down, I know, I've been standing in the engine space when a set of arms came down.
You still have to lift the back end 12" and unbolt the cross bar from the main frame and bottom of the engine, lifting the front of the frame 12" to get the engine out. The rest of your plan is OK, but for goodness sake make sure those safety bars are installed and secured.
[quote="Deas Plant."]Hi, B4D2.
Maybe my ol' eyes is failin' me but I seem to see a safety bar atop the right hoist ram. You wanna hava nuther look?

[/quote]






Deas, Thanks for having keener eyes than me. I do agree with Catsilver though regards a mechanical attachment to hold the angle in place, I do however see the wire holding the angle in place. Just the same, I am glad to see that YM has his arms propped. I thought about it some more last night and was going to ask how the arms were held up as he surely had to remove the pump from the front of the motor. Removal of the hydraulic hoses would have surely let the juice out. Nonetheless, thanks for double-checking my critique.
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Sun, May 17, 2009 9:57 PM
yieldmap
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Reply to B4D2:
[quote="Deas Plant."]Hi, B4D2.
Maybe my ol' eyes is failin' me but I seem to see a safety bar atop the right hoist ram. You wanna hava nuther look?

[/quote]






Deas, Thanks for having keener eyes than me. I do agree with Catsilver though regards a mechanical attachment to hold the angle in place, I do however see the wire holding the angle in place. Just the same, I am glad to see that YM has his arms propped. I thought about it some more last night and was going to ask how the arms were held up as he surely had to remove the pump from the front of the motor. Removal of the hydraulic hoses would have surely let the juice out. Nonetheless, thanks for double-checking my critique.
So, to continue, we spent Saturday last weekend and Wednesday last week removing the engine from the 933. The loader arms appeared to be in the way, and since I was going to start painting anyway, they came out with relatively little fuss. Only a little heat needed on the loader tower pins, but they came out with the porta-power.

By the way, I don't think the engine is actually supposed to come out. In fact, I'm fairly sure they build the engine in mid-air, then assembled the tractor around it. Anyone who has worked on one of these knows what I mean.

Once out, we found the "bang, bang" culprit. #1 crank bearing was ground up in the oil pan. #4 piston was also broken between two ring grooves. The crank is grooved up a little, so we'll be looking for a set of undersized bearings if anybody has some.

I spent some quality time with the pressure washer cleaning parts, and plan to spend tomorrow cleaning more. It looks like the chassis will emerge from the shop tomorrow for a good bath as well. Hopefully I'll get some primer paint on this weekend.

Anyone have a set of undersized bearings? I've got a few calls into the parts sources, but no calls back yet.

Thanks,
Sam
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Sun, May 24, 2009 10:55 AM
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