You should see the damage

Guzzi cam - doesn't seem too bad from peering down the pushrod tunnels:
http://www.sweller.dynalias.org/guzzicam/

Opinions?


Hog passed comment on an oil cooler - this may be a good idea. There is
an external oil feed to the cylinder heads

see this picture: http://www.sweller.dynalias.org/images/oil-feed.jpg

The feed is the grey braided banjo hose. It comes from a single banjo and
feeds the rocker lubrication to each head which then drains down the
pushrod tunnels to the sump.

I could mount a cooler more or less where the horn is in this picture:
http://www.sweller.dynalias.org/images/guz_front.jpg

If the single feed went to the cooler then running off a double banjo
split to each head.

Would the feed to head lines need to be equal length?
Do oil coolers come with male or female fittings?
What would be a likely donor bike to supply a cooler.
Do they have thermostats or would it be cooling all the time?

Opinions?

 

Already has one - their primary purpose is less about cooling (although
that is a side effect) but to increase the volume of air under the
pistons which assists with breathing problems on higher performance Guzzi
engines.

 

Alternatively, you could try a sump extension. Allows the bike to carry
more oil, and (obviously) extends the sump, therby improving both lube
quality and cooling.

I rode down to the Bol many years ago with a feller who had one on his
Le Mans. They used to be easily obtainable and (of course) a doddle to
fit. All you need are some longer allen bolts.

Some come with external oil filter fitments too, which is a doubly good
thing.

So quite possibly easier and cheaper to source and fit than a cooler.

 

*snort*

--
_______
..'_/_|_\_'. Ace (brucedotrogers a.t rochedotcom)
\`\ | /`/ DS#8 BOTAFOT#3 SbS#2 UKRMMA#13 DFV#8 SKA#2 IBB#10
`\\ | //'
`\|/`
`

 

Well yes, but we are dealing with 30 year old bikes here.

 

Don't connect the oil cooler to the head oil feed banjo on the crankcase at
any cost. You'll have to get a special sump modification which allows
correct take-off pipes to be attached. These were available on an exchange
basis at one time from CorsaItaliana (Spares GB).
JB

 

Well as I already said OI PAY ATTENTION AT THE BACK oil cooling does not
need a thermostat.

I don't know about the routing questions you ask but I think all B12's have
oil coolers, not as nice as mine of course, and the breaker should be full
of them. You may need a friendy shop to make up pipes and connections.

eBay "Bandit Oil Cooler" there are lots from £8 up to mine item 180145362798

 

You are introducing cost implications beyone Swellers tolerance you know

 

I know - I read it after I posted.

Although, a water cooling system doesn't need a thermostat it's desirable
it's not cooling when it doesn't need to. The same should apply to an
oil cooler especially when it's the primary cooling system (as it is on a
Bandit).

 

It seemed a good idea at the time... Thinking about it there may be oil
starvation problems as it's on the wrong side of the feed.

Who are not answering the phone at the moment but I'm not expecting
plenty cheapness.

 

Yess but the whole shabang works so differently and oil has rather different
thermodynamic qualities if you are using something like a 5w50 Mobil IYSWIM.

R100RS's have coolers and no thermostats either IIRC

 

Have a look if you go to the International Guzzi Owners club's V-Twin Rally
over Aug bank holiday weekend in Ringwood. The biggest Guzzi autojumble
you've ever seen. I've bought two such sumps there over the years (and far,
far too many other 'bargain-must-have-or-I-will-surely-die-without' spares).
This possibly explains the state of my garage.
The other option is to find a friendly machinist and bore/tap your own sump
for oil take-off pipe fittings.
JB

 

That I can do. Do you have a picture or drawings of a modified one?

 

Don't I just wish. The 2 I bought went straight ot thier new owners (I'd
been asked to buy them if I spotted any). I didn't have chance to examine &
dimension them up. I wasn't too complicated though from memory. The photos
in the Guzzi manual should suffice to work out the oilways to tap into.
Outlet to cooler should be before the filter (possibly have to put a
threaded plug into this gallery just before the filter) and the return from
the cooler back into the gallery the filter is screwed into. 5/8" bore
braided lines should do the job I reckon.
I've got to do this very job soon myself for the trike. I've got a cooler
and lines/unions but haven't got a spare sump unfortunately, and I'm not
taking the trike off the road while I do the machining.

JB

 

The left hand exhaust lobe doesn't seem to have the same surface texture
as all the other ones.

 

later boxers have thermostats, don't they?

IIRC it is one of the differences between the 1100cc and 1150cc R-GS
variants.

--
wessie at tesco dot net

BMW R1150GS

"Wessie is a lovely man with many wonderful qualities" TM Blaney

 

No idea never worked on a Beemer made after they abandoned quality control
;o)