1977 Husqvarna 250cr Project

Good to know. That's the type of riding I plan on doing anyway. Should I get the CR rear wheel spacers beings I'm running a CR engine? I remember you saying the WR spacers looked good and to just tighten down the axle. How many foot pounds for the axle nuts?

Ordered a ton of parts yesterday so I'll post some pics of the progress soon.

I remember you saying the WR spacers looked good and to just tighten down the axle. How many foot pounds for the axle nuts?

Your confusing Bill And I.

I said they axel spacers look ok. Now I have not measured them but they are the same number and location for the Model. As for the length of those spacers you could very well have a short one and as for torque Nice and tight is all I know.

I apologize. I'll see about finding a rear wheel diagram for a 77 WR250 just to be sure.

No worries just waiting to see if Marty chimes in. He's a 'spurt!!

Your WR probably has an 18 inch rear wheel,not sure if the 77CR has 18 or 17 my 78CR has the seventeen and a different swingarm so the spacers are different and has chain adjuster on rear of swingarm.

As far as I can remember, the CR's would have a 17" and the Auto's had 18".

My rear wheel is indeed a 18". The swingarms in 1977 on the CR and WR were the same?

My wheel is an 18". Makes sense, it came off a 360 Auto.

No the 77 CR swing arm is totally different than the 77 WR swingarm. 77 wr used 18" wheel and 77 CR had 17" wheel. John measure the length of your left and right side wheel spacers and report back. I suspect you have the wr/auto swing arm. No matter if you have the 18 or 17 inch wheel will have no difference on the wheel spacers. The swing arm does.

Marty

Hey Marty, The wheel spacers are at my brothers but I could have him send me pictures and get the measurements of them tomorrow and post them here. In the meantime, here are some pictures of the swingarm off the bike. The previous owner powder coated it black. I guess he thought it looked cool or something. I don't know the differences between the CR and WR swingarms. Maybe from these pictures you could tell what I have? Thanks again.

Looks to be the 77 CR swing arm. Are the shock mount bolt holes for 8mm or 10mm bolts? Looking at your previous pictures, that wheel spacer on the brake side looks like the 8mm wide spacer. Husky had the 8mm wide spacer and they also had a 12mm wide one. You need the 12mm.

The shock mount bolt holes are 10mm. Here are some pics of the spacers measured with a caliper.

John, OK thank you for the pictures. Confirms what I was thinking. Your left side "long spacer" is correct. But you need the 12mm right side (brake spacer). That is measured on the thick outer area, do not include the width of the seal rubber ring like in your picture. You currently have the thinner 8mm spacer. As a side note someone at sometime during the life of the bike drilled the shock mounts out to accept 10mm bolts. Thats not uncommon. The parts diagrams show the 77 250CR used 8mm shock bolts. Once you get the correct spacer and wheel bolted in tight you may notice your back wheel has about a 10-12mm offset from the center line of the frame that is normal. Your 18" back wheel is correct as Husky didn't go to 17" until 1978 and also in 78 changed to the newer design hub.

Marty

Here are pics of the back wheel on my 78 250 CR for reference.

Thanks for all the useful information Marty. So I need to find the 12mm spacer. Do you happen to know the correct part number? If I can find one I'll order it ASAP.

John, I have seen three different part numbers for that spacer, Husky called it a case seal. 151661101, 151654901, 161672701. The one that I have found that is usually the 12mm wide spacer is 161661101. If you see one on Ebay be sure to ask the seller for the width measurement. For a temporary solution you can add a couple of large metric fender washers and place them between the swing arm and the spacer. I wish I had one for you. You might also send a message to Deathfromabove (Chris) and ask if he has one as he restored a 77 360 auto sometime back and I know the 77 360 auto used that spacer.

Marty

Right on, I'll look around online and see If I can find one. I do have access to a machine shop so if I can find some stock laying around that I can turn down and drill to make something that will fit and (in a way) look like its supposed to be there, I'll do that.

Funny they call it a seal. I was reading that in a parts manual and it threw me for a loop. I'm so used to the Japanese bikes and these Husqvarna's just seem very different.
Thanks again for all the information.

There is a seal listed that goes on the backing plate and spacer #1216549 01 .
Bill

So there is a spacer as well as a seal? I'm getting kinda confused.

I have a 77 wr250, my parts manual calls the steal spacer a "seal case" and the rubber a "seal". The spacer has a groove cut in it to accept the rubber seal, of course the brake backing plate has that same groove, when mated I guess it forms a type of waterproof seal. The rubber seal is nothing more than a square o ring. Hope that makes sense.
John