LazyBastard said:
Ask any mechanic extra oil will increase heat big time and waste HP. When the fluid hits the vent hole it will cause a pressure increase but the leak will come from the case overheating. You all have been warned. I have seen chain cases & gear boxes on the drilling rigs I work on so hot the oil would smoke from being overfilled. It also caused bearing seals to start leaking.
RX1-er-2005
Expert
The vent is built in on the DIPSTICK... I alwalys make extra grooves on it for EXTRA venting.
ROCKERDAN
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LazyBastard said:
Id have to agree with LB this time....
also,the vent is located in the rubber area of the dipstick top..i opened my vents up somewhat with an exacto knife,as there was some discussion early on about pressure buildup.
I also agree that too much lube could possibly cost some MPH on top end.....this is why I use REDLINE shockproof LIGHTWEIGHT gear lube...
Dan
What ever have at her then and fill her up to the top would ya. I know you will be too embarrassed to fess up when it craters and its time to hear the old I told you so. Too much oil will cause the oil to foam, expand and over heat. I have seen it with my own eyes. Just one question though for you experts. Where do think the hp loss is going then? Whats that you say from the oil churning with no room to go anywhere? That would be friction! And friction causes what? Heat, very good!. Ever heard of a hydromatic well it can boil water and all it does is churn water we use it to run drill pipe in the hole so the brakes dont overheat. Works like a transmission in low gear to defeat gravity from the weight and momentum of the drill string going in the hole. Liquid friction also heats up your automatic transmission ever heard of a transmission cooler? Where does that heat come from? Yup you guessed it liquid friction.
vmaxx05stud
Pro
i guess basicly it doesnt mattewr what i run in there so i'll get synth, and put it in thanksd for the good info guys.
gsxr
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Synthetic lubes are better , non synthetics are left overs from the 90's.
All the technology we live with , yes we have better lubricants to choose from.
As for fill use the dipstick .
These manufacturers have multi million dollar computers to engineer these machines!
All the technology we live with , yes we have better lubricants to choose from.
As for fill use the dipstick .
These manufacturers have multi million dollar computers to engineer these machines!
Its hard to bet Klotz chain case lube. It sticks like nothing I have ever seen!
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ROCKERDAN said:
Me to as he is ABSOLUTELY CORRECT.
When the 06 Apex's with reverse came out, they were over filled from the factory. After they came in for their 1st dealership inspection they were set to the reverse level. Then guys that were making lake runs or several hard runs in a row were seeing the seals leaking. By putting the levels up to the standard level that problem stopped right away. I set up all by buddies sleds & mine to the higher level plus a bit more oil and we have had Zero issues on any of them.
BTW......I like that Polaris Syn C.C. oil, works very nicely. I got that one from a Yamaha Tech SRX Twinns.......Sweet
Your talking about an extra ounce Larry. I am talking about filling it up way too much like he said you cant really overfill them and cause damage and you most certainly can.
LazyBastard said:
This is the one I am talking about Larry! Is this what your calling Absolutely Correct?
Put in 8 oz. of Syn.C.C.oil & GIVVVVER!!!!!!!!!!!!!!!!! 
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Sled Dog said:
Yes Rod, even though that's all "I Put In" you could put more in if you wanted to and it will be fine......Honest
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I run the full Synthetic 2000 from Amsoil. ( All my fluids are Amsoil products ) One container is good for two fills.
-1CS
-1CS
We will have to agree to disagree. You fill the chaincase up and do 20 miles of lake running and your going to have a problem. On the cooling I can see it keeping it cooler if all the oil has been displaced on the sides of the case and there is none left for the chain to throw. This is not enough oil and more should be added so that there is always some for the chain to throw. That said if there was too much oil added more heat will be generated from fluid friction and on a long hard run problems from heat could arise.
ReX
TY 4 Stroke God
Not this argument again...
While ideal fill level(s) for coolest running, highest speed and maximum chain life are still up for debate, severely overfilling a chaincase is guaranteed to steal lots of horsepower and cut top speed as well as produce lots of extra heat within the oil and chaincase.
If anyone is willing to do the "fill the chaincase to the top and run WFO for 30 mile experiment", I would be interested to hear the results. I wouldn't be surprised if the oil gets so hot it starts coking up and burning and if this ultimately leads to a chain/chaincase failure. I also wouldn't be surprised if oil gets all over the place. For certain too much oil in anything converts horsepower into heat due to the energy wasted working the oil.
As far as "the best fill level", we have tried running our chaincases at the REV line (per the owners manual), at the STD line (as filled from the factory) and with 8 oz (per the factory service manual which gets you somewhere in-between REV and STD) and we've seen 06 chaincase leaks using all 3 different levels. At the same time we've tried all 3 different levels and had no leaks at all with the 07 updated chaincase and 05 chaincases.
I suspect you can run it anywhere between the STD and REV line without too much concern, but severely overfilling or underfilling are both bad ideas.
I've also discovered that if you take the chaincase apart and clean out all of the oil followed by adding 8 oz you end up only a little over the REV line. At the same time, doing a quick drain followed by an 8 oz fill you typically end up close to the STD line.
The official line from Yamaha for customers (us) is "follow the owners manual" (REV line), but I still don't know what "the best" fill level is.
Note all of the above is for an Apex/RX-1 with reverse.
While ideal fill level(s) for coolest running, highest speed and maximum chain life are still up for debate, severely overfilling a chaincase is guaranteed to steal lots of horsepower and cut top speed as well as produce lots of extra heat within the oil and chaincase.
If anyone is willing to do the "fill the chaincase to the top and run WFO for 30 mile experiment", I would be interested to hear the results. I wouldn't be surprised if the oil gets so hot it starts coking up and burning and if this ultimately leads to a chain/chaincase failure. I also wouldn't be surprised if oil gets all over the place. For certain too much oil in anything converts horsepower into heat due to the energy wasted working the oil.
As far as "the best fill level", we have tried running our chaincases at the REV line (per the owners manual), at the STD line (as filled from the factory) and with 8 oz (per the factory service manual which gets you somewhere in-between REV and STD) and we've seen 06 chaincase leaks using all 3 different levels. At the same time we've tried all 3 different levels and had no leaks at all with the 07 updated chaincase and 05 chaincases.
I suspect you can run it anywhere between the STD and REV line without too much concern, but severely overfilling or underfilling are both bad ideas.
I've also discovered that if you take the chaincase apart and clean out all of the oil followed by adding 8 oz you end up only a little over the REV line. At the same time, doing a quick drain followed by an 8 oz fill you typically end up close to the STD line.
The official line from Yamaha for customers (us) is "follow the owners manual" (REV line), but I still don't know what "the best" fill level is.
Note all of the above is for an Apex/RX-1 with reverse.
