monsta rebuild

[Duck-Stew]

Pull the brass hose barbs out of the intake manifolds before you ship those off...

[monsta]

I'd already droped them at the powdercoaters when I read your post Stu. But dosn't matter anyhow, I have others I plan on using.

Not a lot to report.. I've just been cleaning bits up.
I did get the bits back from powdercoaters. Here they are all cleaned up.  I'd be interested to see how the heatproof tape others use for masking goes? normal masking tape goes all gummy and is a prick to remove!


and here are some goodies for the engine.. More expensive than I thought they'd be, about $500AUS there! (thats about $499US  )



I've also given a lick of paint to an enginge stand I made..

[koko64]

Looks like a nice satin finish rather than gloss.

[monsta]

yep, textured black its called...

I still have stuff to go to get anodized and other stuff to get ceramic coated, plus, put the engine together..
THEN, things will move a lot faster... 

[Ducatl]

I love textured black, I just did all my covers and a bunch of other pieces in it a bit ago.

Those cases look fantastic

[monsta]

ok, a little bit more done..
I was a bit hesitant to build the bottom end of the engine myself, maybe if it wasn't for the fact that it has different cases and I'd have to shim everything I might of had a crack.
But because I have never done a bottom end before I got a mate of mine to help.(I took everything to Justin at Pro-Twin for anyone in Perth that wants to know) and he gave me a hand... well...  mostly did it! 
Anyhow, here's a pic of some primary gears I had kicking around for a while. They're a veetwo item, ratio is similar, but they have a hunting tooth and are lightened!  Problem is I cant use em! 
They're for an older model and the ratio for the oil pump is different driving the oil pump slower!  not what I need!  And of course veetwo dosn't make the correct one anymore and I had the wrong ones all this time!   


So, now I've got the engine home and putting the top end together.
This pic is where I'm getting the belts on so's I can check the squish and clearence of the valves to piston. (I have measured it, but I just want to be sure) .
Here's where I say to bling haters to look away!


on this side you can see the anodized ally adjustable cam pulleys, I've had em on for about 4-5 years(wish I'd got another set before they sold out..). I've also made stainless belt tensioners... had them for 4-5 years as well (the same time I took the belt covers off) The jackshaft pulley is standard but painted, but I made a larger stainless washer for it.
Also, you can see the bevel engine valve covers. I would like the round case bevel covers more because they have a lower profile, but they are harder to get so more expensive.

more shiny stuff turned up... Stainless rod ends...


difference between polished and unpolished..

[Raux]

have you looked into getting some HM 1100S gears?

[Düb Lüv]

if i'm understanding this right. the primary gear ratio isn't going to affect the oil pump ratio as long as the secondary gear on the crank gear isn't different. if that made sense. from what i found most oil pumps have a 40 tooth gear

[monsta]

Raux..  what's special about the HM ones?



Düb Lüv.. yep, that makes sense.. 
this pic shows the difference between the oil pump gears. (top left =OEM  right=veetwo. the bottom left oil pump gear is veetwo) The gear on the oil pump is correct but the one on the crank isn't.
The OEM oil pump gear is 34/53  the veetwo one is 30/?
I'm told that an earlier model ran them.. maybe pantah or 851?


FYI
the OEM primary gears are  31/62
veetwo is  29/56. 

[Raux]

HM 1100 S gears are lightened stock gears

[Duck-Stew]

HM 1100 S gears are lightened stock gears

but only fit splined crankshafts.  900's have the tapered fit to the gear so it's a moot point.

[Raux]

but only fit splined crankshafts.  900's have the tapered fit to the gear so it's a moot point.

ahhhh thanks Stuart... so which bikes does it fit ? ie does it fit the 696

[Düb Lüv]

Raux..  what's special about the HM ones?



Düb Lüv.. yep, that makes sense.. 
this pic shows the difference between the oil pump gears. (top left =OEM  right=veetwo. the bottom left oil pump gear is veetwo) The gear on the oil pump is correct but the one on the crank isn't.
The OEM oil pump gear is 34/53  the veetwo one is 30/?
I'm told that an earlier model ran them.. maybe pantah or 851?
FYI
the OEM primary gears are  31/62
veetwo is  29/56. 

that's really gay they changed the oil pump ratio too. when you mentioned the pump would run slower i was confused. all makes sense now. i thought there was a magic portal of different primary and oil pump ratios i didn't know about.

i was wondering if you could use 1000cc+ primaries and possibly swap the 900 bearing in them, that is if the gear dimensions were the same. probably not likely though.

[Duck-Stew]

Raux:  I think they would, a quick look in the parts fiche would show (hopefully) the splines on your crank.  Transmission input shaft to crank dimensions are the same for all Duc motors so that's good....

[monsta]

all is not lost on the gear yet, I know someone who 'May' have one...
I'm leaving the tightening of the nut on the original gear till last! 

engine should be finished on the w'end, pick up the frame from the painters tomorrow..