Crankcase cover replacement

[s-flow]

I plan to replace my crankcase cover,
http://www.yamahascooterspares.co.uk/spares/epc2.asp?ModelID=13229&pageID=13&m=YAMAHA+XT1200Z+SUPER+TENERE+CRANKCASE+COVER+1&uid=0

No. 8 in the picture.

Do I need to drain oil or anything else to think of, or just to bolt off and on?

/Daniel

 

[jajpko]

You should drain the oil. Also a new gasket and take note of where the dowel pins come out from, They may be a different size.
If you have not done jobs like this before you may want to have a good friend help you. just sayin..

 

[3putt]

Loosen each bolt in 1/4 turn stages and criss cross pattern till all are loose, then remove the bolts and the cover.

On install. Start with top bolt then bottom bolt right under the oil fill hole and work around clockwise, when you get back to the bottom one, tighten the 2 inside the outside pattern then go around agin clockwise starting with the next bolt at the bottom. Torque is 12nm or 8.7 ft/lbs.

Service manual has a picture which explains better than my less than 1000 words.

 

[Bigbore4]

Steal a trick from the race pits. Lean the bike well over and restrain it with a tie down to a sturdy bench, truck, whatever. The race guys do it to save a couple minutes. I do it because I am cheap. I change the oil AFTER I am done with the job. Helps get out any gasket shavings etc that might have fallen in.

 

[dcstrom]

Did I miss the obvious question - WHY? Crash damage?

 

[s-flow]

Thanks! Good input.

What happens is that probably the salt on our roads speeds up some corrosion, eating into the material..
I will take a photo later tonight if I have time.
Not sure if this should be happening this fast.
???

 

[Tremor38]

Thanks! Good input.

What happens is that probably the salt on our roads speeds up some corrosion, eating into the material..
I will take a photo later tonight if I have time.
Not sure if this should be happening this fast.
???

That salt is some wicked stuff. Just a suggestion, but you might want to spray some under-coating on the pan once it is installed.

 

[s-flow]

Just around/under the bolt the material is attacked. The bike looks messy but this is from just my last recent ride.
Othervise I clean the bike carefully and has been using transparent rust-protection spray all vinter. I will try to find
some heavier/thicker stuff to put at the worst attacked spots.

The bike in the whole seems to look fine but around two of these bolts things getting bad.. As shown in a photo in another
thread I also get rust under my throttle tube.

 

[Tremor38]

Just around/under the bolt the material is attacked. The bike looks messy but this is from just my last recent ride.
Othervise I clean the bike carefully and has been using transparent rust-protection spray all vinter. I will try to find
some heavier/thicker stuff to put at the worst attacked spots.

The bike in the whole seems to look fine but around two of these bolts things getting bad.. As shown in a photo in another
thread I also get rust under my throttle tube.

Wow, I see what you mean. Might take something pretty thick next time, as you said. At least you know the areas to concentrate on. Let us know what you come-up with.

 

[biting_point]

looks nasty, this is how nature works its way on the smallest thing..

maybe try cleaning it frequently to stop deposits from working on those areas in future..

 

[Tremor38]

looks nasty, this is how nature works its way on the smallest thing..

maybe try cleaning it frequently to stop deposits from working on those areas in future..

Yeah, I think hitting the area around those bolts at the end of a ride with something that is water-displacing is a very good first step. We used to follow that up with some stuff we called 'grade 4' that we brushed onto and around the fastener/screws on military aircraft. That seemed to stand-up to the element pretty well, but need periodic cleaning and re-application.

 

[Checkswrecks]

Sorry for you to be the guinea pig who we learn from and that this is taking place.


As a preventive for next time, this is exactly what the ACF-50 and similar products are meant for. Re-spray after washes.

 

[s-flow]

No problem! I love the bike a lot, so I really want to ride all year even though it might be hard on the bike.. It has to be worth it.

Thanks for the recommendations.. I will try them out. I will report later on how things work out 8)