QA42A on a 1250
 

Brand new to the forum and still not too experienced with small engines/equipment, but have been a mechanic for awhile (mostly light duty trucks).

I have a QA42A blower that came with my 1250 and I just put it back on today since we may be getting more snow/ice and both of my trucks are inop. Driveway is gravel and I would rather not use the blade since I'm rather light and have no wheel weights/chains.

I have a few questions for you folks.

1. What is the proper belt size for my combo, 30"?

2. The bigger problem. I noticed when I tried to fit the belt that came with it (seems too narrow and too small) that the pulleys are WAY misaligned. The pulley on my unit is a stamped pulley but has the correct collar with set screws. One was already backed most of the way out, the other was rusted and tightened down. Some PB blaster and a allen bit with a 1/4" wrenchmade quick work of that, but the pulley is stuck fast. I'd hate to have to pull the blower back off (garage floor and driveway are #4 gravel). Will a puller work to get the stamped pulley off? It doesn't look like I would have enough room on the shaft even if I did get it free, so can the pulley be turned around with the collar/set screws facing the blower?

3. Are these collars keyed? There looks to be a key wedged in the blower side of the collar.

4. I have a lead on a cast iron pulley on ebay, should I go ahead and get it? I got laid off back in November so I'm trying to do this with no money spent (for now) if I can. I also got hit by a reckless driver in November so I'm gathering body parts to replace the truck's entire front clip and half of the decrepit fuel system. Diesel parts aren't cheap :biggrin2: Plus there's all the vehicle/house insurance/tax coming up on top of paying out for a wedding.

Any help is appreciated!

First, welcome to OCC..... :Welcome2:

You know the ole saying, a picture(s) is worth a thousand words.

:TTWWP:

crash-harris, welcome to OCC. I bought the same model thrower last summer and have it on a 1650. It came with one of these hubs and solid steel pulley;

http://www.surpluscenter.com/Pulleys...-Pulleys-Hubs/

The large hub has a key way and has lots of clamping area on the shaft. When I got the thrower it came with a B series belt, which I believe is 5/8”. Now I thought the quietlines used a ½” belt, but…:bigthink: the supplied belt seemed to fit well in both pulleys except it was to long. I asked the guy at the belt store for a 30” belt and he gave me a Gates B29 (said it was 30”). Used it yesterday and it worked well.

So, I would say defiantly no stamped pulleys. You need some weight and or at least some chains. I think you could plow better with the front blade vs having the weight of the thrower on the front end with no chains or weight.

Good luck

Welcome to OCC :beerchug:

2 & 4) If you can get the stamped pulley off without distorting it, it could be used. Maybe try tapping it in a little bit so you can clean the shaft for easier removal. KROIL is a better penetrant than PB Blaster but a homemade mix of 50/50 acetone & ATF works just as good.
A cast iron pulley is a much better choice.

3) Yes, uses a key

Jeff

That pulley looks more stout than mine. Does this forum allow HTML or IMG code photo embedding? I'll snap a few tomorrow. I use photobucket for hosting.

On a side note, I also have a 149 that I just got running late last year, only needed new points (plan to sell it with the other blade and the 2 older decks) and a 1200. The 1200 was my great grandmother's. She rode the clutch a lot so it's been replaced multiple times (last time the flex hub had to replaced as well), but rings let about a quart of oil blow by (no smoke!) and broke the rod. Eventually it'll get a 6 pin clutch and a creeper gear for garden and snow detail.

Yes, the standard [img] tags work. You can also put the link in the "insert image" mountain ----> http://www.onlycubcadets.net/forum/i...nsertimage.gif above the block where the words go in the reply edit

I'll use the attachment on the reply editor. Photobucket sizes my IMG codes to enormous proportions :BangPC:

Pics will be uploaded tomorrow when it's light out (not even power in my garage, it thinks it's a pole barn).

Testing a pic of the data plate on the blower.

In the PhotoBucket editor, you can resize the pictures

The belt is actually 15/32" X 30".