Drive belt help

[tmc2872 15]

So new to this forum (all winter lurker) and I am having trouble with my 68 raider 12. My drive belt is not disengaging when I go to shift gears. I don't think I have my belt guides set correctly. Any help would be greatly appreciated.

 

I inherited this tractor from my neighbor who was going to scrap it. I have already rewired it rebuilt the carb and put just a bunch of sweat equity in to it. I really like this little tractor and would love to be able to use it this upcoming season. Just getting a little frustrated with it right now.

 

Thanks for any help again.

[ri702bill 8,902]

Welcome!!

Is the belt guard properly installed??

[tmc2872 15]

Yes from what I can tell.

[tmc2872 15]

I don't have any internal tabs on the inside 

[tmc2872 15]

I'm wondering if I have these guides installed wrong.

[SylvanLakeWH 27,156]

Is it a new belt? Are you sure belt is correct size?

[squonk 42,276]

12 minutes ago, tmc2872 said:

I don't have any internal tabs on the inside 

That guide is not correct. It goes on the back side of the belt. It's designed so when you push on the pedal the belt slacks and the guide supports it. Then the slack pushes the belt away from the pulley.

Edited March 26 by squonk

[tmc2872 15]

5L820W from napa. From all my research that seems to be the belt I should be using.

[tmc2872 15]

It seems to rub on that bolt head when I had it that way. Hence the reason I put it on the inside of the belt.

[Handy Don 13,254]

I’m fairly sure that the bent-rod guide and the bolt are in the wrong place--just remove them. 

The “pulling” side of the belt, when the clutch is fully engaged, should be a straight shot from the bottom of the engine pulley to the bottom of the transaxle pulley. it should pass very close to but not touching the inside of the lower “shelf” of the belt cover.

Hoping someone more familiar with that model will chip in and tell you the correct location for that guide! 😁

Edited March 26 by Handy Don

[Ed Kennell 40,213]

That bolt and wire guide should be moved forward to the tapped hole forward of the pulley.  That should position the guide closer to the pulley like the top guide.

[Handy Don 13,254]

5 minutes ago, Ed Kennell said:

That bolt and wire guide should be moved forward to the tapped hole forward of the pulley.  That should position the guide closer to the pulley like the top guide.

Ah, thanks Ed.

So this guide gets positioned close to the belt so it makes contact and drags on the belt when the clutch is disengaged instead of a tab on the bottom of the belt cover!

[gwest_ca-(File Mod) 11,209]

Later models had tabs welded to the front of the guard. This will give you an idea of the location to be effective.

[squonk 42,276]

6 minutes ago, gwest_ca said:

Later models had tabs welded to the front of the guard. This will give you an idea of the location to be effective.

pic doesn't work Gary

[tmc2872 15]

I knew I should have joined this forum sooner! Thank you for all of the help. I will post pictures when I get it done. Gotta get the little ones to bed! 

[WHX?? 50,467]

[Achto 28,570]

[953 nut 57,453]

12 hours ago, tmc2872 said:

Gotta get the little ones to bed! 

Bring them up right, each one NEEDS a Wheel Horse of their own.         

[rjg854 11,841]

   @tmc2872   

[tmc2872 15]

Was this what you guys were meaning? It still doesn't seem to be getting enough drag. 

[Ed Kennell 40,213]

47 minutes ago, tmc2872 said:

Was this what you guys were meaning? It still doesn't seem to be getting enough drag. 

 

 

The guide looks to be located correctly now, but the gap with the belt should be 1/32" on the top and bottom guide when the belt is tight.

And the belt guard must also be installed to support the bottom loop of the belt to to assist in the disengaging of the belt from the engine drive pulley

Edited Monday at 03:17 AM by Ed Kennell

[squonk 42,276]

That doesn't look like the right engine oil pan for a 68 Raider 12. Engine should be a K301S and it looks like an "AS" style pan like a 1076 would have. May have a swapped engine. The engine crankshaft height might not be correct for the belt guard you are using.

 

Edited Monday at 10:20 AM by squonk

[953 nut 57,453]

1 hour ago, squonk said:

doesn't look like the right engine oil pan for a 68 Raider 12. Engine should be a K301S and it looks like an "AS" style pan like a 1076 would have. May have a swapped engine. The engine crankshaft height might not be correct for the belt guard you are using.

Good eye Mike.            

[squonk 42,276]

This is a Raider 12, Notice the taller oil pan

 

[WHX?? 50,467]

8 minutes ago, 953 nut said:

Good eye Mike.            

Doesn't mean you can't make it work. 

Space the engine up to the height of a deep pan? Should be enough hood height.  

I don't think that spring thingy should even be there. 

 

Correct motor for a '68 12 and best pic I have for the PTO.