Here is a reminder to add bop tunnel hose saver during summer maintenance

[yamamarc]

I got this sled In for maintenance and to repair the antifreeze leak.
As many of you know it's not a quick fix to replace that little 0.50$ peice of hose In the front of the tunnel (chaincase side)!!!

To replace this hose the gas tank, manifold cover, extension pipe , skid , track/driveshaft all have to come off.

Then you need to drill out the rivets connecting the coolant pipe running down the tunnel to the rear heat exchanger. The 2 nipples are only 1/4" apart so it's impossible to put the new hose on with pipe riveted to the tunnel!!!



Do your self a favor and either make the covers or buy them from Travis at Barn of parts if you haven't already!!
2021 has a new braided hose replacing the rubber one. IMO it will be much easier to add the covers then upgrading to braided hose for any sled pre 2021

 

[yamamarc]

 

[SAB1]

IMO that’s another half assed production issue. Can’t believe they actually sent sleds out with that BS connection. I put Travis’ guards on as soon as I saw that.

 

[yamamarc]

IMO that’s another half assed production issue. Can’t believe they actually sent sleds out with that BS connection. I put Travis’ guards on as soon as I saw that.

It's a total hack job!! I can't believe they cut out slots in the tunnel for the gear clamp bolt..lol

 

[RAMSOMAIR]

I had some reservations when I first installed the BOP guards 3 years ago! I was concerned they might rub the bottom of the exchanger and my thoughts were correct. I pulled them today while doing some maintenance and since Marc had just posted about this. You can see where they have rubbed into the aluminum and wore it down a bit. Now I think the extrusion is thick enough anyway but perhaps Travis could give us the same guards but maybe bend them with a 1/16”- 1/8” more clearance????

 

[4strokes]

pics????

 

[RAMSOMAIR]

Here are a couple pics

 

[WinderFab]

Marc your 2nd pic shows the hose deformed, was it like that before you got working on the sled ?

 

[RAMSOMAIR]

I will still put them on my new sled!!!

 

[NYTurbo]

STM tunnel protectors do a very good job of protecting it

 

[yamamarc]

Marc your 2nd pic shows the hose deformed, was it like that before you got working on the sled ?

Yes I am guessing the tunnel iced up and pushed the gear clamp causing the it to puncture the hose when he took of

 

[WinderFab]

Yes I am guessing the tunnel iced up and pushed the gear clamp causing the it to puncture the hose when he took of

Ok thanks makes sense

 

[WinderFab]

I will still put them on my new sled!!!

Can we add a bead of silicone or something at the bottom of the protector before you install it ?
Just thinking if we put something between the two pieces of aluminum to insulate the two
from rubbing. I installed the protectors at the beginning of the season.

 

[sailor joe]

oh man, what a disaster if it takes so much reaching to fix a hose...lookslike the machine has to be almost ripped down completely...what's the fix to avoid this? A BOP tunnel protector? Do I got this right?

 

[WinderFab]

Yes BOP makes them..