634 WT

kluth
Senior Member

Posts: 201

634 WT Jan 19, 2013 21:38:57 GMT -6

Quote

Post by kluth on Jan 19, 2013 21:38:57 GMT -6

I picked this up today. I spent more than I normally would for a parts sled, but it has a clean fuel tank, good cylinder compression, a slide suspension, and a decent track. It looks as though the suspension was an add on. The holes holes in the tunnel are used where the bogie suspension and track tensioner bolted on. The track is stamped Marshall Distributing (679-9301). Can anyone tell me anything about the suspension and track?

Last Edit: Feb 11, 2013 10:13:56 GMT -6 by kluth

I get along with the voices inside of my head.

ruppluver Veteran Posts: 3,951	634 WT Jan 19, 2013 21:57:05 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by ruppluver on Jan 19, 2013 21:57:05 GMT -6 Hard to tell from the pictures,but is that a Magnum suspension? It looks like a steel boxed frame for hyfax. Just a guess.
	Wahpeton,ND is: Home of the "Old retired fart"!! 1970 Rupp Magnum 440WT[Sachs] 1970 Rupp WT[JLO 440 FA engine] 1970 Rupp NT,[JLO R295,Magnum hood] 1970 Rupp Sprint 28[Sachs SA280 single] 1970 Rupp Nitro[TR295S engine]new project 1971 Rupp Sprint 44[396 Yamaha engine] 1971 Rupp Sprint 40[Hirth 399] "I build "fun" sleds,NOT show sleds!!!

snikr Veteran Posts: 1,028	634 WT Jan 20, 2013 6:43:46 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by snikr on Jan 20, 2013 6:43:46 GMT -6 If it's not a Magnum suspension it might be a 72 Nitro suspension.
	72 Rupp Nitro 340 73 Rupp Sport 30 04 Polaris Pro-X2

seacoastrupp
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Posts: 280

634 WT Jan 20, 2013 7:00:55 GMT -6

Quote

Post by seacoastrupp on Jan 20, 2013 7:00:55 GMT -6

Nice find,
72 Rally/ 71 Magnum suspension there.... outside of the cowling being a bit different w/ larger teardrop intakes, and gussets at the spindles, maybe a few other small exceptions....aluminum bumpers.. you have a nice start on a 634 Magnum build.....it is typical the tracks like to catch on the rear spring area,, some modding with an idler wheel at the shock/ rear spring area will help this from happening... Have Fun ,,, Saved another one....

magnumed Advanced {S=0} 74 SNO PRO Posts: 1,147	634 WT Jan 20, 2013 7:10:14 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by magnumed on Jan 20, 2013 7:10:14 GMT -6 That is a 72 Rally suspension, nice sled.

kluth Senior Member Posts: 201	634 WT Jan 20, 2013 11:21:21 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kluth on Jan 20, 2013 11:21:21 GMT -6 I see what you mean about the track rubbing at the rear springs. There isn't much clearance. Does anyone have any photos showing idler wheel mods that they have completed in order to alleviate this?
	Last Edit: Feb 11, 2013 10:17:01 GMT -6 by kluth I get along with the voices inside of my head.

Deleted Deleted Member Posts: 0	634 WT Jan 22, 2013 20:09:46 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Deleted on Jan 22, 2013 20:09:46 GMT -6 could be an american susp. def. not 71 magnum ,nice to find a big block

ruppluver Veteran Posts: 3,951	634 WT Jan 22, 2013 21:33:32 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by ruppluver on Jan 22, 2013 21:33:32 GMT -6 I think the American suspension has aluminum slide rails,my 73 did anyway.
	Wahpeton,ND is: Home of the "Old retired fart"!! 1970 Rupp Magnum 440WT[Sachs] 1970 Rupp WT[JLO 440 FA engine] 1970 Rupp NT,[JLO R295,Magnum hood] 1970 Rupp Sprint 28[Sachs SA280 single] 1970 Rupp Nitro[TR295S engine]new project 1971 Rupp Sprint 44[396 Yamaha engine] 1971 Rupp Sprint 40[Hirth 399] "I build "fun" sleds,NOT show sleds!!!

snikr Veteran Posts: 1,028	634 WT Jan 26, 2013 19:26:52 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by snikr on Jan 26, 2013 19:26:52 GMT -6 That steel rail slider is a 71 or 72. I'm thinking 72 Rally. Don't think the 72 Americans had sliders but I might be wrong.
	72 Rupp Nitro 340 73 Rupp Sport 30 04 Polaris Pro-X2

kluth Senior Member Posts: 201	634 WT Jan 27, 2013 20:10:15 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kluth on Jan 27, 2013 20:10:15 GMT -6 Spun the track today and the rear idlers crumbled to pieces. When I removed the fuel tank I noticed this support. The front end doesn't look like it had been hit. The support is only on the PTO side of the sled.
	Last Edit: Feb 11, 2013 10:16:29 GMT -6 by kluth I get along with the voices inside of my head.

ruppluver Veteran Posts: 3,951	634 WT Jan 27, 2013 22:30:28 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by ruppluver on Jan 27, 2013 22:30:28 GMT -6 Run a straight edge across the front of tunnel over to the spindles.The front isn't usually beefed up like that unless it has been damaged or tweeked in some way.
	Wahpeton,ND is: Home of the "Old retired fart"!! 1970 Rupp Magnum 440WT[Sachs] 1970 Rupp WT[JLO 440 FA engine] 1970 Rupp NT,[JLO R295,Magnum hood] 1970 Rupp Sprint 28[Sachs SA280 single] 1970 Rupp Nitro[TR295S engine]new project 1971 Rupp Sprint 44[396 Yamaha engine] 1971 Rupp Sprint 40[Hirth 399] "I build "fun" sleds,NOT show sleds!!!

Rupp Luver: I've been gone for so long,my account was closed.I'm doing my last Rupp build,you can follow it on Vintagesledders.com on Face Book.Yes Rick,its the end of the line! Nov 16, 2023 17:17:20 GMT -6

Rons Rec. Parts: Hi. We've been cleaning House. Back in the 60s-70s we were a Rupp dealer. We found 10 pallets of new Rupp Snowmobile parts & plastic buried in the warehouse. We would like to sell the whole lot if possible. If interested contact Dwaine @ 907-262-5235 Dec 20, 2023 16:39:32 GMT -6