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Ducati Monster Forum
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2 b sure, 900 head assembly
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Topic: 2 b sure, 900 head assembly (Read 5421 times)
greenmonster
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Posts: 1286
Re: 2 b sure, 900 head assembly
«
Reply #15 on:
January 02, 2022, 05:19:43 AM »
Ok, thx.
Just a bit anxious about the fitting of #8 bearing since it has no fixed place.
Will just screwing it all together fix its place just by screwing it all together?
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M900 -97
MTS 1100s -07
ducpainter
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DILLIGAF
Re: 2 b sure, 900 head assembly
«
Reply #16 on:
January 02, 2022, 07:30:57 AM »
Quote from: greenmonster on January 02, 2022, 05:19:43 AM
Ok, thx.
Just a bit anxious about the fitting of #8 bearing since it has no fixed place.
Will just screwing it all together fix its place just by screwing it all together?
The way I see it from the illustration, the spacers, and the journal in the head for the bearing, fixes the bearing correctly.
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koko64
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Re: 2 b sure, 900 head assembly
«
Reply #17 on:
January 02, 2022, 07:53:41 AM »
+1
just looked at some heads with cams removed, but otherwise complete with bearings and spacers. Insomnia.
I also deleted an incorrect lubrication statement I posted. (I'm sure you guys already knew that and were thinking I should lay off the sauce).
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2015 Scrambler 800
koko64
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Re: 2 b sure, 900 head assembly
«
Reply #18 on:
January 02, 2022, 08:43:36 AM »
I'll have to post a pick of the manual illustration, its not great. The Haynes photos are more helpful. As long as you recorded the order of the shims. One on the journal against the lobe and one on the bearing cap end. Between the inner bearings is a tacho gear or spacer for the Monster heads.
I could find no guidance on pressing in the inner bearing.
«
Last Edit: January 02, 2022, 08:49:34 AM by koko64
»
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2015 Scrambler 800
greenmonster
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Re: 2 b sure, 900 head assembly
«
Reply #19 on:
January 04, 2022, 10:52:59 AM »
Some marks left from previous bearing, l`ll go w those.
Will mount rev gear side first, possible to check things through its hole.
Thx all f help.
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M900 -97
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Orange16
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Re: 2 b sure, 900 head assembly
«
Reply #20 on:
January 05, 2022, 04:14:23 AM »
The large bearing (6004?) on the inside goes in first, hard against its seat in the head. Then fit the spacer or tacho driver and the smaller outer bearing and push them against the inner bearing, while supporting the inner bearing so it doesn't move.
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koko64
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Re: 2 b sure, 900 head assembly
«
Reply #21 on:
January 05, 2022, 10:56:22 AM »
Thanks for sharing that.
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2015 Scrambler 800
greenmonster
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Posts: 1286
Re: 2 b sure, 900 head assembly
«
Reply #22 on:
January 09, 2022, 06:18:03 AM »
Open end facing cam (and no sign of middle bearing), hmmm...
Got new valve guide seals, 2 green and 2 black. Haynes says black on intake, white exhaust, correct?
Does it matter? IIRC l had all green last time I did this. They do look the same.
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M900 -97
MTS 1100s -07
koko64
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Re: 2 b sure, 900 head assembly
«
Reply #23 on:
January 09, 2022, 11:44:07 PM »
The oem manual backs the Haynes manual. Green seals for exhaust and black for inlet.
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2015 Scrambler 800
greenmonster
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Re: 2 b sure, 900 head assembly
«
Reply #24 on:
January 10, 2022, 10:35:46 AM »
Yup, paid the bill and saw my supplier noted "green=exhaust!".
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M900 -97
MTS 1100s -07
greenmonster
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Re: 2 b sure, 900 head assembly
«
Reply #25 on:
February 04, 2022, 05:55:06 AM »
2 b sure 2:
https://www.bike-parts-ducati.com/ducati-motorcycle/Monster/1998/Monster_900/Monster-900/CAMSHAFT/676/2311/0/676
#4 has a slot for #15, that slot is just for convenience when mounting, right?
When #1 is fastened, #4 comes more inwards and is not secured by #15, that's how it should be?
Think so, same on both heads when test mounted.
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M900 -97
MTS 1100s -07
koko64
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Re: 2 b sure, 900 head assembly
«
Reply #26 on:
February 04, 2022, 06:31:15 AM »
Looks like 4 (pulley plate) is pressed against 6 (the spacer) when 1 (the nut) is tightened.
Is that how it looks when put together?
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2015 Scrambler 800
greenmonster
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Posts: 1286
Re: 2 b sure, 900 head assembly
«
Reply #27 on:
February 04, 2022, 08:17:34 AM »
Yes.
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M900 -97
MTS 1100s -07
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