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Magnum project- pictures

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P Backus

12-29-2005 17:19:18

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I thought I"d try to post a pic or two of my search for the antifreeze leak, at the same time honing my pic posting skills, or maybe the lack of skills. I still have to figure out how to post more than one at a time- and get them the right size for the forum.
Anyway, got the head off to check for leaks. Still have to pull the cam to change the timing gear cover gasket. I thought I was fairly accustomed to the prices one has to pay for parts as I spend thousands each year for parts. However, once in a while something floors me. The gaskets for this project are around $500- and that"s not a complete set, just what I need (hopefully).
Paul (leaking $)

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JakeF

12-29-2005 20:47:48

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Re: Magnum project- pictures in reply to P Backus, 12-29-2005 17:19:18

Everything on the shop looks good, and clean, but the tin is on the wrong side, is it an addition or does it just have it for sheeting on the inside.

Are you going to pull the camshaft or just the gear. Do you have the wear ring/seal installer for the front crank seal? Jake

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P Backus

12-30-2005 07:30:59

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Re: Magnum project- pictures in reply to JakeF, 12-29-2005 20:47:48

Hi Jake,
I haven"t decided yet whether I"ll take the cam out or gear off. I"m still thinking about what you told me last time. I don"t want to trash the gear. How do the dowels work? Do they wedge into the top of the lifter tight enough to hold them? My manual says they should be 1/2" x 18" with a split in the end. With the seal I was waiting to see how worn the seal area on the crank was to see if I need the wear ring. The seal I got from my CIH dealer has the plastic sleeve to help install the seal, but I don"t have the tool to install the wear ring. I assume that"s like a speedy sleeve, right?
I think this is a high-hour tractor, but it looks to me like it"s been majored not too long ago. You can still plainly see the crosshatch marks on the cylinders and there is no ridge at the top. The valves look great, stems have no wear, just shiny spots, and the guides are within specs. However the valve springs stand crooked. Is that not a big deal on this motor? Most manuals for other motors want those to be square.
The shop was built with tin on the outside and the inside with insulation in between. To me it"s a great idea since it"s nice and bright, won"t need painting for a long time, and you don"t have to worry about starting your wall on fire from welding spatter or grinding sparks.
Thank you for your insight and help!
Paul

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JakeF

12-30-2005 09:44:51

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Re: Magnum project- pictures in reply to P Backus, 12-30-2005 07:30:59

If the seal you got doesn't have the wear ring you got the old style seal. I wouldn't use it. If you have a wear ring on the crank you need the updated seal, that comes with the wear ring. The installer will install the wear ring and seal at the same time. You can probably reuse the wear ring with a new seal if it's in good shape. If you don't have a wear ring get the installer and update to it, as it's a better seal.

The dowels need to be rounded/pointed and have the 3/4 slit you mentioned. When the dowels fit propperly they will come out pretty hard after you tap them in with a mallet. The book says to secure the two together with a heavy rubber band, but I use a zip tie on each set.

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P Backus

12-30-2005 16:25:35

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Re: Magnum project- pictures in reply to JakeF, 12-30-2005 09:44:51

Hi Jake
I got the front cover off today and there is already a wear ring on the crank, but it has some pretty deep grooves in it, so it looks like I"ll have to get the new wear ring with the seal.
I did a trial fit with one of the dowels and it does fit pretty tight, so I will pull the whole cam shaft- seems like that would be best. There"s not much lash in the cam gear or the inj pump gear (about .005, best I can tell), but the idler for the oil pump is pretty sloppy on it"s shaft. Is that a concern? Maybe it would go forever like that since it gets oil constantly.
Thanks again for the help!
Paul

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JakeF

12-30-2005 19:44:26

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Re: Magnum project- pictures in reply to P Backus, 12-30-2005 16:25:35

Most of the oil pump gears have twice as much or more lash. It does'nt affect pump or cam timing so they don't machine them as close I guess. If you want I can look up in my manual and see what the lash spec is. As long as the shaft doesn't have a bunch of slop and it makes good pressure you should be fine.

Don't foreget to pull the transfer pump (did that once and the cam just didn't want to slide out), and I have a piece of 2"??? pvc pipe cut in half with a antifreeze jug cap glued in the end that I slide in just in case a follower does drop. Out of curiousity did you break one of the bolts that hold the thermostat housing on, I've never not had one break. Jake

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P Backus

12-30-2005 22:23:03

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Re: Magnum project- pictures in reply to JakeF, 12-30-2005 19:44:26

Hi Jake
I didn"t see a reason to take the thermostat housing off, so it"s still on there. However, I did break one of the bolts that holds one of the heat shields on, and one of the radiator support bracket bolts. I wimped out and left the exhaust manifold on so the machine shop can mess with it. Must be that durn metric hardware!
I"m not so worried about the gear lash in the oil pump idler, but the radial play in the bushing. I"m just guessing, but I bet there"s .060 of slop in the bushing. The pump shaft seems fine.
By the way, what"s a good way to get the old sleeve off of the crankshaft, and where do I get the tool for installing the new one? I"ll talk to my CIH dealer to see if they"ll lend it to me. I spend thousands there every year on parts, so they might help me out.
I"m kind of planning on taking that cam out on Saturday, so I"ll be looking around for a piece of PVC or something suitable. I really do appreciate being able to talk to someone who"s been in there before. I"m pretty mechanically saavy, but if I worry too much about something I"ve not done before, I can get hamstrung.
Paul

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JakeF

12-31-2005 13:59:55

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Re: Magnum project- pictures in reply to P Backus, 12-30-2005 22:23:03

To get the old wear sleave off just take a chisel almost as wide as the sleave and hit it in two places a third of a revolution apart. It's hard stuff so you can give it a pretty good whack, and use one of your duller chisels as it's hard on them. It'll just pull off in your hand then. The installer can be had from cummins, case, otc, and miller. I borrowed one from Case and while I had it took down all the diminsions and had a local machinest build me one for 125.00 Jake

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P Backus

12-29-2005 17:25:10

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Re: Magnum project- pictures in reply to P Backus, 12-29-2005 17:19:18

Here"s another.
Nice shop, ain"t it? A custom operator that I work for on occasion allows me to use it a bit between Christmas and New Years. It"s about 65 degrees in there with almost any tool and running water, etc. -my dream shop!
Paul

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Allan in NE

12-29-2005 17:34:19

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Re: Magnum project- pictures in reply to P Backus, 12-29-2005 17:25:10

Hey Paul,

You're doin' great with the pictures. Now cut 'em to 60% of their original size and you'll have it.

Boy! You've got a project going on there. I think your winter is probably passing faster than mine! :>)

Allan

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P Backus

12-29-2005 17:46:37

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Re: Magnum project- pictures in reply to Allan in NE, 12-29-2005 17:34:19

Hi Allan,
You know what they say: time"s fun when you"re having flies.
Yeah, I have to figure out how to reduce the picture size. I guess I"ll have to do it on the camera before I take the pic since the dimensions look okay on my photobucket album, or at least I don"t know how to change it there.
Paul

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