Topica Loopframe_Guzzi Archive


Subject: Re: Wish my Ducati motor was this easy to work on.

Author: Robert Hawkes

Date: Feb 20, 2001, 11:15 AM

Post ID: 1705527043


Rich,
Your leak down test sounds great. Can you use any kind of spray or do you
have to use carb cleaner? Can you use any liquid like gasoline; just drip
it on there and see if it seeps through? Just wondering because I just
lapped my valves and I really don't know if the tolerances are close enough.
Thanks, Bob Hawkes, 69 Ambo
----- Original Message -----
From: Rich Zink <rzi-@co.alameda.ca.us>
To: Looped Group <Loopfram-@topica.com>
Sent: Tuesday, February 20, 2001 1:53 PM
Subject: RE: Wish my Ducati motor was this easy to work on.


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Pete, I have only had mine since July of last year. But thanks to
Guzziology and the Rider and Workshop manuals, in that time I have had
both
 wheels off, cleaned the hubs and brake shoes, polished and greased the
brake
 cams and regreased the wheel bearings. I replaced all of the cables.
Changed
 all (rear-end, transmission, fork and engine) fluids. Rebuilt the carbs.
Put
 in new points, condensor, cap, rotor, plugs and plug wires. I flushed the
tank, Kreemed it and replaced all of the fuel lines. And now the top end.
I
 need to do engine seals sometime soon. I would say I probably needed to do
about 10% of this stuff but it has been fun and educational. And the fact
that I didn't know all that much about the rest of it's thirty year life
outside of me being the third owner. My leakdown test you ask? Well since
I
 neglected to do it before tearing into it (knowing the left head gasket
leaked anyway) I just (start laughing now) sprayed carb cleaner in the
intake and exhaust ports while I had the heads off. The exhaust valves let
the cleaner leak through the seats and the intakes didn't :-). And after I
ground (the exhaust) and lapped them, neither did. I did mic the valve
stems
 and guides though.

Rich


----------
From: Peter Scheer [SMTP:plsc-@tycoelectronics.com]
Sent: Tuesday, February 20, 2001 10:30 AM
To: 'Loopfram-@topica.com'
Subject: RE: Wish my Ducati motor was this easy to work on.

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Rich this is good news for a new loop owner like me.
The other thing about these is that the cylinders are even tilted
outward to
make access and wrench turning maybe even easier than BMW.
whats your
simple leakdown test?
Pete

 -----Original Message-----
From: Rich Zink [SMTP:rzi-@co.alameda.ca.us]
Sent: Tuesday, February 20, 2001 1:14 PM
To: Looped Group
Subject: Wish my Ducati motor was this easy to work on.

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Over the last week I pulled the top end off of my Ambo to
fix a
 right side base gasket weep and almost blown (well it leaked till
warmed
 up)
left side head gasket. So, I replaced all of the gaskets on both
sides
 (base, head, o-rings, intake and exhaust), replaced the piston
circlips
 and
replaced a hacked short cylinder stud (what did you do? Previous
owner). I
 reground the exhaust valves and seats as they failed my quick and
dirty
 leakdown test, lapped in all of the valves, checked the chrome
(looks OK
 to
me) bores, torqued and then (a day later) re-torqued the heads and
set the
 valves. Not even bad fitting the cylinders back on 4 ring pistons
by hand.
 When all said and done a couple of seconds on the starter button
and
 Voila,
the sound of music to my ears! The only area of note or concern
found was
 a
sleeved left side intake guide which I can only assume was the
outcome of
 a
busted pushrod the previous owner reported happened on a trip. I
don't
 consider myself a great (hell or even good) mechanic but it's fun
working
 on
this engine as opposed to the other Italian in the garage. Maybe I
should
 sell my Alazzurra and build an 850T Hot Rod? Hmmmmm.
Rich
PS. Hey Mark @ MG Classics. Do you ever bother to shim the valve
springs?
 
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____________________________________________________________
T O P I C A -- Learn More. Surf Less.
Newsletters, Tips and Discussions on Topics You Choose.
http://www.topica.com/partner/tag01

____________________________________________________________
T O P I C A -- Learn More. Surf Less.
Newsletters, Tips and Discussions on Topics You Choose.
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