primary puller

[woodchk454]

Anyone know what the thread is on the end of the Yammy primary pulller? Since Im trying to mess with my own clutching instead of relying on someone else I guess i need to get the tools to do the job. And im more of a build my own type of guy. Of course somethimes it bites me in the a** (most of the time to tell the truth, ill never learn).

 

[grader]

spend the money on the proper puller, period. this is one area that can cost you big time if something screws up. you can build the clutch break-down tool if you are inclined.

 

[RX1Jim]

I second grader's opinion regarding the clutch puller. Buy the highest quality puller from one of the vendors on this site. A puller made ofthe wrong or low quality materila will cause you nothing but trouble.

 

[woodchk454]

thanks for the confidence. I dont see a problem in making this. The proper length with 2 different diameters correct thread pitch and a radius on the end so as not to harm the the end of the crankshaft. This is a simple puller not a friggin rocket.

Not being an overconfident jerk here but I am a toolmaker not a moron. Thanks for your input and opinions they are appreciated.

 

[RX1Jim]

Nobody is calling you a jerk or a moron, just giving you a highly educated opinion. I run a 50 person tool room which makes aerospace equipment. I have almost every piece of machining equipment: water jet, multi-axis wire EDM, multiaxis flood cooled CNC machining centers and over 40 years experience building equipment of all types. I could build 100 of these pullers an hour but chose to buy one from a reputable source. I did not want to be guilty of "Why buy it when you can build it for 10X the cost".

I was respectful when I replied to your question, you should do the same. That is the spirit of this site.

Happy holidays!!

 

[woodchk454]

jim didnt mean to come off like that and I apologize. and you are correct about the spirit of this site and the the 10x cost. But my shop is slow as with most and with equipment sitting idle why not. my job requires me to run to mazak vtc's and on long run times why not work on something with the others in my cell?

btw. 50 person shop is good size shop and I would love to have the the wire machine.
my sincerest apology if I came off like an a**

jim (also)

 

[RX1Jim]

I just measured the threads on my primary clutch puller for you. I measure the threaded portion to be 17.92 mm (18 mm) diameter with a thread pitch of 1.5 mm. Hope this helps. You could always use the "grease method" with an 18 mm bolt to remove the primary clutch. With the grease method, you remove the clutch bolt, fill the bolt opening with grease and insert a bolt which threads into the primary clutch. As you tighten the bolt, it produces a large hydraulic force which pushes the primary clutch off the engine output shaft. I have not had to use this method but many have claimed success with it. I always use a lubricant on the threads to the puller so the aluminum threads in the primary don't get worn out.

Good luck and Happy Holidays!!!

 

[rxrider]

Nice beeing able to fabricate tools on your own, great info guys

 

[woodchk454]

thanks rx1 jim. those were the dims i was looking for (but then you new that) . and again, sorry for earlier rudeness. as usual tty crew comes through.