jimmie d
TY 4 Stroke Master
If both these polls actually reflect the mortality rates on the 06 chaincase there is a MAJOR problem. :ORC
Jim
Jim
mdkuni
TY 4 Stroke Guru
4600 miles with reverse. No chain case problems. I really hope it stays that way.
JERSEYJOE
Expert
SHOULD I EXPECT A PROBLEM NEXT WEEK
I am going to Quebec on Friday and expect to put about 800 miles on in 4 days. My APEX GT has exactly 2000 miles on it. The oil is still as full as it was the day I bought it. Looks like my venting is OK, and the chain has not really worn to the point where I had to screw in the tensioner
YOU GUYS ARE SCARING THE SHI* OUT OF ME. I DO NOT WANT TO BE STUCK 200 MILES ABOVE LAC ST JEAN WITH A BLOWN OUT CHAIN CASE.
What is the mathematical probability that I am going to have a problem?
This is a rhetorical question really, but I must admit all this makes me wonder and mades me pissed off that I had to spend $10,000.00 and have to worry about breaking down. I bought a new sled for the piece of mind that comes with NEW.
I am going to Quebec on Friday and expect to put about 800 miles on in 4 days. My APEX GT has exactly 2000 miles on it. The oil is still as full as it was the day I bought it. Looks like my venting is OK, and the chain has not really worn to the point where I had to screw in the tensioner
YOU GUYS ARE SCARING THE SHI* OUT OF ME. I DO NOT WANT TO BE STUCK 200 MILES ABOVE LAC ST JEAN WITH A BLOWN OUT CHAIN CASE.
What is the mathematical probability that I am going to have a problem?
This is a rhetorical question really, but I must admit all this makes me wonder and mades me pissed off that I had to spend $10,000.00 and have to worry about breaking down. I bought a new sled for the piece of mind that comes with NEW.
Apex_GT
Expert
Re: SHOULD I EXPECT A PROBLEM NEXT WEEK
I give ya a 50/50 chance you'll have a chain case meltdown...I did a simillar trip with simillar milage..Took it to the dealer with full knowledge of a potential chaincase failure before trip..Had them check the oil level and tension...Still shredded it and was stranded many many many miles from a dealer...Good luck...
ps..bring a tow rope..
JERSEYJOE said:
I give ya a 50/50 chance you'll have a chain case meltdown...I did a simillar trip with simillar milage..Took it to the dealer with full knowledge of a potential chaincase failure before trip..Had them check the oil level and tension...Still shredded it and was stranded many many many miles from a dealer...Good luck...
ps..bring a tow rope..
Waterboy
Extreme
How many had chain case issues with their apex ?
3200 miles no issues. Dealer had to adjust reverse linkage at 300 miles. It kept jumping out of engagement. Installed Merc synthetic lower unit lube at that time. I also cut venting line in dip stick ruber after hearing of a few early season problems that where attributed to pressure build-up.
3200 miles no issues. Dealer had to adjust reverse linkage at 300 miles. It kept jumping out of engagement. Installed Merc synthetic lower unit lube at that time. I also cut venting line in dip stick ruber after hearing of a few early season problems that where attributed to pressure build-up.
hondo
VIP Member
Waterboy, did you cut a "V" notch in the vertical vent grooves or just make the grooves wider?
Either way IMO you did the right thing.
Either way IMO you did the right thing.
LouMan
Newbie
- Joined
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Most probably know that the Mach comes with automotive type chain/gears in order to minimize risk of failure. Lessons learned for Yamaha unless its due to defective parts. That is one part I have confidence in.
Got to be envious of Cats Diamond Drive too, planetary gears are solid.
Got to be envious of Cats Diamond Drive too, planetary gears are solid.
ReX
TY 4 Stroke God
The 05s and earlier Yamaha's had almost bulletproof chaincases - even with similar hp numbers. I'm convinced it's the reduction in thermal conductivity that the 06 magnesium chaincase has compared to the previous aluminum ones.
Riding the same trails at the same speeds, we stopped to check our oil during our Gaspe trip (06 Apex and 05 RX-1). At the same time we checked the chaincase temp by hand and the Apex's would literally burn your hand, while the 05 RX-1 was only warm to the touch.
Depending on the magnesium casting alloy Yamaha used, the thermal conduction could be as low as 55 W/m.K to as high as 100 W/m.K (common Mg casting alloys are typically between 60-75 W/m.K), while common cast aluminum alloys are typically in the 150-200 W/m.K range.
In 05 Yamaha made the chaincase cover (not but not the back half of the case) out of magnesium, but this didn't matter much as most of the heat was conducted through the back of the chaincase into the aluminum tunnel (aluminum/aluminum conducts very well). Here the heat would be spread throughout the tunnel as well as cooled by the snow.
Riding the same trails at the same speeds, we stopped to check our oil during our Gaspe trip (06 Apex and 05 RX-1). At the same time we checked the chaincase temp by hand and the Apex's would literally burn your hand, while the 05 RX-1 was only warm to the touch.
Depending on the magnesium casting alloy Yamaha used, the thermal conduction could be as low as 55 W/m.K to as high as 100 W/m.K (common Mg casting alloys are typically between 60-75 W/m.K), while common cast aluminum alloys are typically in the 150-200 W/m.K range.
In 05 Yamaha made the chaincase cover (not but not the back half of the case) out of magnesium, but this didn't matter much as most of the heat was conducted through the back of the chaincase into the aluminum tunnel (aluminum/aluminum conducts very well). Here the heat would be spread throughout the tunnel as well as cooled by the snow.
1700 miles on the Attak no problems , but my 05 Venture's chain case went at 2500 miles and the dealer worked with me on the fix even with the sled out of warranty.
Waterboy
Extreme
How many had chain case issues with their apex ?
Hondo
When you pull out the dip stick you will notice a groove in the rubber stopper that does not go all the way up the stopper. The top cap portion of the stopper is also grooved. Just take a sharp knife and complete the grove. I actually left a small flap that will easily open under any pressure.
Have done a number of sleds on the trail with a pocket knife by simply cutting a "V" grove to conect upper and lower grove. Once you look at the dip stick it wil be clear.
Hondo
When you pull out the dip stick you will notice a groove in the rubber stopper that does not go all the way up the stopper. The top cap portion of the stopper is also grooved. Just take a sharp knife and complete the grove. I actually left a small flap that will easily open under any pressure.
Have done a number of sleds on the trail with a pocket knife by simply cutting a "V" grove to conect upper and lower grove. Once you look at the dip stick it wil be clear.
hondo
VIP Member
Thanks Waterboy,
We have opened the vent grooves several sleds and have done it both ways. It makes sense and certainly helps the chain-case vent more.
We have opened the vent grooves several sleds and have done it both ways. It makes sense and certainly helps the chain-case vent more.
