Evo 1100 Timing Marks

Started by koko64, July 31, 2016, 06:19:17 PM

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koko64

Time for a valve adjustment and belt change among other things.

I have the cam belt covers off and note only a crankcase mark for the mark on the cam belt drive pulley, but no marks on the belt covers for the timing dots on the cam pulleys. Also, I have the CCW cam lock tools and can see no marks or locating holes on the cams to lock the tool in nor do I see a TDC timing mark when removing the timing case plug (even with a strong LED flash light). Do the cam lock tools just hold the cam and pulley by pressure or do they lock into a notch or hole? I cant see anything clear or feel it with scribe to locate the tool. I think I can see a mark on the gear tooth that I can see through the timing case hole. The mark is on the top of the tooth with a lesser mark on the teeth each side of it. There is a pointer in there that I have lined up with this mark. The mark is not a drilled dot unfortunately, more a nick.

I have made my own cam pulley marks to line up with the dots on the pulleys so I can change belts (TDC Horiz cylinder). Just some yellow paint on the cam belt inner covers. Any tips?
2015 Scrambler 800

koko64

I ended up making my own belt change marks and tdc marks for valve adjustments. The crank timing marks make sense now I am confident I have identified them. You'd reckon they were trying to make it unclear enough to force you to go to the dealer. ;)
2015 Scrambler 800

Speeddog

There's a little slot in the cam that lines up with the access hole in the cam cap.
Seems when you've got the mark on the cam drive/layshaft pulley lined up, the cam slots will then be lined up.

IMO, it's all a nonsensical system they've cooked up.
Potentially a booby trap, as if you leave a cam lock tool in, and hit the starter, it can't end well.
Coupled with some sort of crank lock pin, then tighten the belts, and loosen the lock screws on the adjustable pullies, to re-time the cams.
I think Brad had a totally justified rant on the whole thing.

I line up the mark on the cam drive pulley, mark the covers, and carry on the same as I do on the older stuff.
No need to fix something that worked fine before.

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koko64

2015 Scrambler 800

DarkMonster620

those "adjustable" pullies are a triple edge threat . . . got a call from a customer that had his belts replaced last week at the dealer . . has slight "tick" . . . told him to get bike back to dealer . . I will NOT touch a bike that goes "tick tick tick tick tick" . . . it happened to me in my first belt change, thing is, pullies just leave cams a little wee off time and usually exhaust[2 times I've seen it] does the ticking . . .
Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AMDucati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."

koko64

There certainly seems more ways to bugger it up without necessarily accurate timing marks clearly provided for reference. I noticed on the horizontal cylinder some play in the cam slot for the locking tool anyway :P. The Vert cylinder was a tight fit. I think setting it all up once and making your own timing marks is a good idea. Where's that degree wheel? [laugh]
2015 Scrambler 800

DarkMonster620

Quote from: koko64 on August 01, 2016, 03:01:10 PM
~~~Where's that degree wheel? [laugh]
2nd drawer on left side of new bench . . .

jajajajajaja
Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AMDucati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."

koko64

#7
The dot on the cam drive pulley did line line up with the marker on the crankcase when the timing gear's marked tooth lined up with the pointer. The cam slots were actually very helpful once I got a feel for them with the locking tools. Very useful if not dangerous if you forget to remove them.
The markers and dots that were provided were actually accurate and gave me a good reference for making pulley markers on the inner cam belt covers. That gave me confidence to get the paint pens out. I noticed the two MTS DS1100's I previously worked on had lines moulded into the inner cambelt covers, so it's definitely just an Evo thing.
2015 Scrambler 800

koko64

Hey Carlos
What do you mean by "ticking"?
2015 Scrambler 800

EEL

You'll find a post on this by me. I had the same issue. I decided to make a piston stop out of an old spark plug. That set TDC on the piston to a perfect level.

As for the timing you just use the cam lock and you're golden.

DarkMonster620

Quote from: koko64 on August 03, 2016, 10:25:55 PM
Hey Carlos
What do you mean by "ticking"?
exactly that, a "tick tick tick tick tick" sound that was faster as the rpms went up, took me a while to set up correctly again, now, I use a white marker to mark both sprocket parts to match . . .

Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AMDucati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."