Hairline cracks

roos800 · Apr 11, 2016

I have a '14 pro 800 163, I just noticed a hairline crack by the bolts where the a-arms bolt to the cast aluminum on each side. Has anyone experienced this? Is it covered under warranty?

Thanks

hamlin · Apr 11, 2016

You mean to say the bulkhead has cracks? Hard to imagine it cracked without damaged a arms

roos800 · Apr 11, 2016

Yes there are hairline cracks right by the bolts, no damage to anything else.

roos800 · Apr 11, 2016

Kinda hard to see

Reg2view · Apr 12, 2016

Good dealer will help a lot. Could be a casting weakness, either pour or mold itself.

FWIW, I've taken out lower a-arms, both sides, on multiple pro RMKs, and have never seen a crack in the upper casting. Never trashed an upper. Bulkhead is much tougher than the Rev and XP doos I've had. Good luck.

Montgom345 · Apr 21, 2016

Yo man, i had basically the same thing. just in a little different location. Dealer told me they wouldn't worry to much about it and to have a weld shop throw a bead on there. Did that last fall and it held up fine all winter. I say throw a bead on it. Just me .02cents

Indy_500 · Apr 22, 2016

I think welding it would do more harm than good. Should be fine, run it. Just make sure your insurance policy is paid for...

Sheetmetalfab · Apr 22, 2016

Indy_500 said:
I think welding it would do more harm than good. Should be fine, run it. Just make sure your insurance policy is paid for...

A plate with lords and rivets would be stronger........

I've welded a bunch of cast aluminum with varying sucess....

TurboMatt · Apr 22, 2016

Sheetmetalfab said:
A plate with lords and rivets would be stronger........

I've welded a bunch of cast aluminum with varying sucess....

I've had numerous cracks welded on cast aluminum parts of the Pro chassis and they never rebroke in the same spot. I'd weld it up.

MDEVO · Apr 22, 2016

roos800 said:
Kinda hard to see

Are you sure they are not just marks from casting? Just a thought.....
I've seen several cast items with the same type of mark, which were not hairline cracks.
Have you done anything to prove they are cracks? (Dye/Paint/Marker)?

Sheetmetalfab · Apr 22, 2016

TurboMatt said:
I've had numerous cracks welded on cast aluminum parts of the Pro chassis and they never rebroke in the same spot. I'd weld it up.

The heat affected zone around the weld becomes soft.
Less prone to crack but weaker nonetheless.

B&M Fabrications · Apr 22, 2016

Some of the Polaris castings Weld absolutely terrible. We have been welding some CFI engine cases lately and they are horrible. But the cylinder welds amazingly clean since it's cast by a different company. Haven't played with the bulkhead sides too much, if they are cast by the same company that does the case I'd just replace the bulkhead side. They are relatively inexpensive and easily replaced.

Sent from my SM-G928V using Tapatalk

roos800 · Apr 25, 2016

Had my dealer look at it, he thought that it might just be casting marks. Since I have warranty till Dec. of 2017 he said mark the outside edges and see if it gets bigger after next season to know for sure. So I guess I will wait and see. Thanks for all the input.

Search

Hairline cracks

roos800

Free Member

hamlin

Well-known member

roos800

Free Member

roos800

Free Member

Reg2view

Well-known member

Montgom345

Member

Indy_500

Well-known member

Sheetmetalfab

Well-known member

TurboMatt

Well-known member

MDEVO

Chic Chocs Addicts

Sheetmetalfab

Well-known member

B&M Fabrications

SnoWest Sponsor

roos800

Free Member

Similar threads