spring shackle bolt.JPG (27.87 KiB) Viewed 2348 times
I reamed out the shackle and used a 5/8" Grade 8 bolt. JRC mentioned a few years ago that they used to do this.
The result is no free play and the ski bolt probably will not break. Along with the SLT skies from newbreedparts.com it handles like a dream.
Link for the ski. https://www.newbreedparts.com/newbreed/ ... rings.html
1977 340 Liquifire, 2 - 1978 440 Liquifires, 78 cc Clone(#35),
1997 Polaris XCR SE 600 (mistake).....
#400v
I seemed to have been a much better driver when my sled was slower.
Keep in mind a grade 8 bolt will shear before a grade 5 will, there is a Deere Racing Bulletin on this from back in the CC days. Although these were using the 1/2" or 9/16ths & the bushings. I personally sheared a " CAT " grade 8 - 9/16ths ( using a drilled out bushing ) bolt off on the Dator.
Grumpy
AKA: Kenny, Grumpy, Mr. Richard Head
"I Hunt For it, Purchase it, Haul it, Sometimes Repair it, Sometimes Break it, Then Fix it Again, Label it, Warehouse it, Talk About it, So NOW, HOW Can I Take Any Less $$ For It?"
"God I love the smell of KLOTZ in the morning, That smell, you know that Gasoline/Oil Smell, MAKES the whole place SMELL like.. LIKE VICTORY. You know someday the 2 strokers are gonna end..."
Do Anti-War Protesters have reunions? If so what do they TALK about?
ICCSF 108 wrote:Keep in mind a grade 8 bolt will shear before a grade 5 will, there is a Deere Racing Bulletin on this from back in the CC days. Although these were using the 1/2" or 9/16ths & the bushings. I personally sheared a " CAT " grade 8 - 9/16ths ( using a drilled out bushing ) bolt off on the Dator.
Grumpy
I've read that's a myth. Grade 5 will bend before it breaks. Grade 8 won't bend, it just breaks, but the breaking point is still higher then a 5.
One thing that is overlooked so far is the fact that the bolt, whether 5 or 8, is harder than the steel used in the saddle so without the bushing the saddle will wear very fast. Eliminating the bushing and going with a 5/8" bolt is a temporary fix to sloppy steering.
I wonder if a guy could use old wrist pins to make bushings out of, that & a grease zirk on the spindle would help
Grumpy
AKA: Kenny, Grumpy, Mr. Richard Head
"I Hunt For it, Purchase it, Haul it, Sometimes Repair it, Sometimes Break it, Then Fix it Again, Label it, Warehouse it, Talk About it, So NOW, HOW Can I Take Any Less $$ For It?"
"God I love the smell of KLOTZ in the morning, That smell, you know that Gasoline/Oil Smell, MAKES the whole place SMELL like.. LIKE VICTORY. You know someday the 2 strokers are gonna end..."
Do Anti-War Protesters have reunions? If so what do they TALK about?
This is the strange bolt that started it. I found this bolt in an auction lot I had purchased when an old country service station had closed.
SUPERTANIUM ALLOY LOL.JPG (29.94 KiB) Viewed 2194 times
I only found one.
I thought of Grumpy braking a grade 8 bolt while racing a Dator. I often wondered how great a driver would have to be to ride that fast over that rough a terrain to brake that bolt. So when I found this bolt I started to laugh and thought It could fit. It fit the saddle perfectly and I had a reamer for the ski yoke.
I agree with JDT The best fix utilizes a bushing. The ski yoke is where most of my free play was. The 5/8 bolt is not stock. It would be difficult to return the ski yoke to stock. But the SLT Ski is so phenomenal that I felt I needed to eliminate any free play.
Now I wonder about this SUPERTANIUM ALLOY bolt. The early days of Chinese bolt manufacturing?
1977 340 Liquifire, 2 - 1978 440 Liquifires, 78 cc Clone(#35),
1997 Polaris XCR SE 600 (mistake).....
#400v
I seemed to have been a much better driver when my sled was slower.
Matt - JDsleds.com Administrator