74 D200 Restore in Pennsylvania

[Joker72 64]

Finally starting the restore on my 74 D200.  I figure I will track my progress on here to share content and also benefit from the collaborative group should I find myself head scratching.  Here is a pre-start pic and a few of my current progress.

Edited December 19, 2022 by Joker72

[Joker72 64]

So far I've broken off all four exhaust mounting bolts with 3 left in the head.  Two.were already broken off hanging on by a few threads.

  

Edited December 20, 2022 by Joker72

[pacer 3,173]

Thats a nice original looking 'D' -- even got original mufflers (if the guts arent rotted out!!)

 

48 minutes ago, Joker72 said:

four exhaust mounting bolts with 3 left in the head.

 Ive sure done that dance a few times!! Ive 'refurbed' some 6 'Big D's' and every one had broke off head/exhaust bolts. They are bad enough on a single cyl engine, but wrestling that big twin around to get to them is a pain! Thank goodness for Heli-coils....

[Joker72 64]

So far what I see the bottoms of the mufflers are rotted off.  Looks like the exit pipe running the length of the outer tube.  I've got high hopes for her. 

 

[SylvanLakeWH 25,602]

Looks like good bones... 

 

Following along...

 

Morning    

 

Noon   

 

Evening   

[pacer 3,173]

32 minutes ago, Joker72 said:

mufflers are rotted

 

Yeah, the last D200 I got, one of the big 'decision makers' to buy was the 2 mufflers looked pristine .... one of first things I done was to ck those out - a good pair of those were worth more than I gave for the tractor! - but, alas, the insides of them were completely gone/rotted and the shells were thin as toilet paper!

I only broke 2 of those bolts

 

This is what I go back with - they're cub cadets

 

[Joker72 64]

May have to do some cylinder work.  Would at least like to hone them while I'm in here.

Edited December 20, 2022 by Joker72

[Pullstart 62,916]

Just think.  More than half the hp of an original VW Beetle!

[Achto 27,609]

11 hours ago, Joker72 said:

Would at least like to hone them while I'm in here

 

I would suggest measuring the cylinder bore before making a decision. Make sure it is still with in specs and doesn't need to be bored.

 

[RedPower47 111]

Joker i have a set of original mufflers that are not in bad shape, But if you want a nice set of mufflers then talk to Jim Kemp , he makes custom stacks and mufflers! He can make you a an original set just like it came with or i had him do a custom set for me with curved stainless tips coming out the front of my D180, Great guy to work with and does excellent work.

[Pullstart 62,916]

I obviously have no idea how much work is involved to remove the sheet metal, but it sure looks easier to work on that way!

[pfrederi 17,741]

 think 12 hp K301 pistons can be used.  You really need to check and see what engine pars are available before you get carried away.  Parts are hard to find.

[pacer 3,173]

Yes, 301 pistons will fit, and gaskets, lectrics, fuel stuff are readily available ..... but the kicker can be the rods and crank (although I DID see a rod on the bay a few wks ago) and maybe  you could get the crank ground ( nobody near me will/can turn the crank) with possibly more luck in getting a bore job.

 

I have been lucky, of all the big twins I have had they were all within, or close enough to hone and re-ring. I even opened a 20 up and found it had had an - apparent - rebuild with very close .020 bore and .010 crank. On another 18 it was - again apparently - a replaced short block, was dead standard all across and very close fitting.

 

But, on another 18, on re-assembly one of the rod bolts peeled the threads out --- was about 10 months til one popped up on the bay - and mind you, this was 3-4 yrs ago!

[Joker72 64]

It ran strong before I started the breakdown.  A little smoke on start up.  Will definitely measure everything and do parts discovery before I break anything down too far.  I appreciate you guys keeping me on course.  You will probably save my tail somewhere along the way.

 

Pacer:  Where do you source your gasket sets and rings from?  I see a complete rebuild kit on "I save tractors" for $549.  Don't want to go that deep if it's not needed.

 

Is it safe to just start uncoupling the motor/hydro/rear end?  No alignment markings needed or hydrolic considerations?

 

[Joker72 64]

Steering break pads.  Looks like some life left in them.  Just gonna flip direction.  PennDOT can kiss my tail.  lol

Edited December 20, 2022 by Joker72

[pacer 3,173]

1 hour ago, Joker72 said:

gasket sets and rings from? 

 

Just go to the bay and put "gasket kit kohler 532" in search, same for rings.

 

But, WOW, I hadnt looked at them on the bay in a while and there are some kits that are WAY high! But scrolling down I was seeing decent prices, you shud be able to get both for $75-100. These are import, but I've bought maybe 12-15 sets and never had a problem.

[pacer 3,173]

2 hours ago, Joker72 said:

start uncoupling the motor/hydro/rear end?

 

Yeah, nothing critical about getting that done - you might either read a couple posts on the hydraulic or at least pay close attention on teardown, there is a bit peculiar O ring set-up on the plumbing.

 

When I buy a "new" tractor one of the first things I do is get the engine out and go into it to determine its condition, whether it was running on purchase or not.

[Joker72 64]

[Joker72 64]

[pfrederi 17,741]

I think that engine weighs allot 180 lbs.  Getting it on the bench must have been some real work

[Joker72 64]

PTO Clutch.

[Joker72 64]

@pfrederi there was a moment of 100% commitment, no return.  My son helped and it was heavy..

 

Edited December 21, 2022 by Joker72

[Joker72 64]

I'm wondering if somehow I can make this clutch material work with the existing PTO Clutch mechanism.

 

 

Edited December 21, 2022 by Joker72

[Joker72 64]

Measurement time.

[Joker72 64]

Sucks getting old.

 

Edited December 22, 2022 by Joker72