Helicoils for generator

Electrical issues
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51Hog
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Joined: Fri May 20, 2005 7:29 pm
Location: Wasilla, Alaska

Helicoils for generator

#1

Post by 51Hog » Thu Mar 05, 2009 7:25 pm

Just received my new 65a 12v generator for the 51 pan.
I need to pick up some helicoils for it so as not to drill my cam cover.
Is this what I am looking for? (Don't know much about Helicoils.....)

"PERMA-COIL Brand 'Helicoil' Harley Davidson Thread Repair Inserts
Item # 208-404 1 box of 12 pc's NEW 1/4-24 Thread
Material: Stainless Steel



SPECIFICATIONS:


For Use with Cam Cover Screw, Tappet Guide, Oil Pump Stud and Timer Mounting Threads.
Applications: JD, VL, UL, Knucklehead. DL, RL, WL, Servi-car. Panhead. Shovelhead. Sportster.


Perma-Coil helically coiled inserts are made of stainless steel wire that has been rolled to a carefully controlled
thread form. When installed, Perma-Coil inserts adjust to a tapped hole, becoming a functional thread with a
strength exceeding the original.


This Item and many others may also be available for Buy it Now Purchases in our Ebay Store At http://stores.ebay.com/toolcomp1"

Also, I need to pick up a gear, nut and slinger. Am I missing anything?
Dale



john HD
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Re: Helicoils for generator

#2

Post by john HD » Fri Mar 06, 2009 1:53 am

dale,

rotate the generator slightly and drill and tap new holes.

john

Cotten
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Location: Central Illinois

Re: Helicoils for generator

#3

Post by Cotten » Fri Mar 06, 2009 2:50 am

I am not familiar with the Perma-Coil brand,
but if they are the same as Helicoil, then the 1/4"-24 inserts will install directly into the existing 5/16"-24 holes without need for a special tap.

...Cotten

tow_truck
Posts: 4
Joined: Mon Aug 04, 2008 7:20 pm

Re: Helicoils for generator

#4

Post by tow_truck » Fri Mar 06, 2009 3:22 am

I bought those, and from that vendor, no problems. I got the complete kit as I was doing the tappet blocks, but Cotten is right about them fitting the original holes.

51Hog
Posts: 655
Joined: Fri May 20, 2005 7:29 pm
Location: Wasilla, Alaska

Re: Helicoils for generator

#5

Post by 51Hog » Sat Mar 07, 2009 5:14 am

I thought about rotating and drilling the generator but since I need helicoils for other areas, I may as well use them for the genny also.
I think I will also try that vendor.
Thanks for all the replies.
Dale

HD48FL
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Re: Helicoils for generator

#6

Post by HD48FL » Wed Mar 11, 2009 6:04 pm

Cotten wrote:I am not familiar with the Perma-Coil brand,
but if they are the same as Helicoil, then the 1/4"-24 inserts will install directly into the existing 5/16"-24 holes without need for a special tap.

...Cotten
Cotten: Any chance you have a part number or vendor link for this size? I looked and can't find this size.

Cotten
Posts: 6791
Joined: Mon Aug 26, 2002 9:09 am
Location: Central Illinois

Re: Helicoils for generator

#7

Post by Cotten » Thu Mar 12, 2009 12:46 pm

V-TWIN's number for them (in 12-packs) is 16-0930

Eastern Mcy Parts also carries them, but I do not have their catalog here at home.

For direct retail, call Chuck at Kick-Start (616-245-8991)
Individual inserts are $2 each; part # 4984

....Cotten

HD48FL
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Re: Helicoils for generator

#8

Post by HD48FL » Thu Mar 12, 2009 2:16 pm

Cotten wrote:V-TWIN's number for them (in 12-packs) is 16-0930

Eastern Mcy Parts also carries them, but I do not have their catalog here at home.

For direct retail, call Chuck at Kick-Start (616-245-8991)
Individual inserts are $2 each; part # 4984

....Cotten

Cotten: Thanks for the information. I was just reading one of your posts in this thread and I wanted to clear something up. Do these heli-coils fit right into the existing 5/16-24 holes in the generator or does the generator need to be drilled and tapped for the heli-coil? Sounds like they'll just be a direct fit but I need to ask. If they're a direct fit then I just need to make some bushings for the case as that has been opened up for the 5/16 threads in the past. Thanks again.
Andy

Cotten
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Location: Central Illinois

Re: Helicoils for generator

#9

Post by Cotten » Thu Mar 12, 2009 2:50 pm

Andy!

The inserts are a direct fit into the existing 5/16"-24 holes.

1/4"-24 is the one size of bolt where the Helicoil tap size is virtually identical to the next bolt size.

An intallation tool can be made by hacksawing a slot on the end of a piece of rodstock that will fit inside of the insert, but I usually just twist them in with a small pair of hemostats.

The tang is easily broken off with with a sharp rap upon any flat punch that will fit inside the insert.

Removal of the insert to return to large bolts is just a matter of prying them out with a dental pick.
I do not endorse using any thread-locking compounds such as Loctite; Anti-seize is much more appropriate for this application.

....Cotten

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