Met a guy who said he was a " certified master bombardier mechanic" . He said he always uses an impact on the primarys and doesnt torque them. What do you think? ( i wouldnt let him work on mine!)
Impact on Primary clutch?
- Thread starter FIXX
- Start date
Most Mechanics are lazy and paid by the job, thus use tools to speed up what they can get done in a given time. It has nothing to do with quality or proper tool use. They either don't know the damage they are doing or don't care as it will be weeks or longer later and not directly traceable back to them.
I personally do not use an Impact on anything especially pullers! Your crank bearings will thank you for abstaining from impact use, I'll guarantee it.
If you are wrenching everyday you can get a feel for how much torque is being applied and not always use a Torque wrench. For the weekend warrior and average DIY'er I recommend you use a calibrated torque wrench.
i meant he impacts them on. as well as off.
I would have exchanged some choice words with him and left. Amazing how many morons are out there. Another good reason to not ride a Skud if that's what they are teaching in their Master Mechanic schools.
Just because someone calls themself a mechanic doesn't necessarily mean they are a good mechanic. I would never use an impact to take a primary off. Some teflon tape and water or grease will pop that thing right off with a long pry bar. I watched the Cat dealer in Laramie go to town on some guys HCR primary a couple years ago with a 3/4" Impact while I was in there to get parts last minute. It looked brutal how long he hammered on that thing. Glad it wasn't my sled LOL!
I know of a VERY reputable aftermarket mfg company owner who puts primaries on with a ft lb ajustable impact that you can set to say 55 lbs of tq but I still wouldnt trust that thing both for the impact on the crank itself and the amount of tq applied to the fastener.
as for taking them off a puller with a 1/2 inch drive rachet with a small 12-18'' extension should be plenty with smooth steady torque, if you cant get it with that the water/bolt trick is the only way to go!
as for taking them off a puller with a 1/2 inch drive rachet with a small 12-18'' extension should be plenty with smooth steady torque, if you cant get it with that the water/bolt trick is the only way to go!
O
Oregonsledder
Well-known member
I take off a lot of primary clutches each season and I would NEVER use an impact wrench. Not only is it beating the hell out of the crank bearings, but the shock is also transferred to the stator on the other end, and the glued on magnets on most flywheels.
The right tool and a little elbow grease and they always come off. I have never had to try the water or grease method.... I do have long extension bars!
The right tool and a little elbow grease and they always come off. I have never had to try the water or grease method.... I do have long extension bars!
Spill it! Or PM me if you'd rather not post it.
i don;t use an impact....but my Artic cat manual says its fine to use an impact..its their recommended method of removal...in my shop manual anyway..they say tighten and smack with a hammer..its the hammer blow that does more harm then the impact imo
impact is really only rapping clockwise or counter clockwise..it isn;t hammering front to rear..so i can't see and bearing issue's
impact is really only rapping clockwise or counter clockwise..it isn;t hammering front to rear..so i can't see and bearing issue's
S
sno_mo_racer
Well-known member
Stumbled across this last week on the tube. Looks very good and best way to get stubborn and best way to take them off all the time. Might have to get one. Although I wouldn't use the grease due to chance of getting some on the clutch face. Water should do the trick every time with this tool. Don't have one but thinking about getting one this winter.
No impact and harm on clutch bearings or stator or anything looks like. LOL so easy even a girl can do it!!
No impact and harm on clutch bearings or stator or anything looks like. LOL so easy even a girl can do it!!
Daryl, you can use that if you want but Perk's (the guy who designed it) reputation on here is less than desirable. He has been quoted as putting electrical tape on the taper to keep the clutch from spinning on the crank. A DEFINITE NO NO! Nothing should be on that metal to metal fit, clean and dry.
Using an Impact can also change the phasing on the crank if the pin fit isn't optimal, the best way is slow steady pressure or the water and teflon tape to hydraulic it off.
thanks guys. i have never nor will i ever use an impact on a 2 stroke crank for fear of knocking it out of phase. grease works for me.
Not on a clutch but we were taking off a flywheel and We always used an impact with the puller and on the install so we put The flywheel back on with the impact, and put the sled together and went to start it and the magnets Fell off, so back apart it came! so we got a way with it probably a dozen times but won't do it anymore!
Similar threads
