Boring out Dell'Orto PHF 32 to 36mm

Not all triple carbs are rubber mounted - the internal step in a (correct) rubber adaptor will butt concentrically against the carb spigot and metal stub - some Rg series have one piece rubber stubs - would think problem even worse opening out a rubber stub adaptor eccentrically. Way to complicated - - Regards - Phil
 
G'day Cam
It seems as if it is as much the technical challenge of you doing this task.  :D

I don't know if they will suit, but Moto Guzzi used 36mm Dells from your Mk1 to the last of the carby bikes eg 1000S & SP3.

New $214
http://www.dellortodirect.com/Carburetors/PHF/Dellorto-PHF-36mm-DD-4-Cycle-Guzzi-Calif-3-Carburetor?zenid=oftschkqp

Or a good 2nd hand dealer
http://www.rebootguzzispares.com/

Might still be some mucking around but you can also sell your 32's - just advertise that they are off a bevel Ducati 900SS and you'll cover costs  :D

Cheers
Jason
 
G'day Jason

Yes, I've been looking at that option.

The new carbs are a bit pricey, so I've been keeping an eye out for used PHF 36 carbs. But there are several differences between Guzzi and Laverda carbs. The obvious difference being that there are only two of them on a Guzzi, so I'd need to buy two sets unless I can find someone selling them seperatey. Guzzis also have throttle stop screws that Laverdas don't have. Not that it would be a problem - just plug the holes. Also, the Guzz carbs are not made for bolting together on a spacing plate, and some of them don't have the mounting lugs cast into the body. Those that do have them appear to be rough cast, so would need facing off square and holes drilled and tapped. Nothing that can't be done reasonably easily though.

Converting Guzzi 36 carbs for Laverda mounting would be less work than converting a set of 32 Laverda carbs to 36, but I'd have to fork out money to buy the Guzzi 36's in the first place. I already have a couple of sets of 32mm triple carbs lying around, so the "no initial cost" option is attractive.

I also find it interesting to learn something new by having a go at jobs that I haven't attempted before.

Cam
 
Right into DIY myself, but prefer the "See one, Do one, Teach one" ethos of my trade, especially when you don't want to completely cock up the 1st one you do (and in my business suffer the nasty consequences suffered by the cockupee and cockupor)
 
Davo said:
Right into DIY myself, but prefer the "See one, Do one, Teach one" ethos of my trade, especially when you don't want to completely cock up the 1st one you do (and in my business suffer the nasty consequences suffered by the cockupee and cockupor)
Click to expand...

I thought that's why they put you to sleep before surgery ............... so we can't hear "bugger, that wasn't meant to happen"  :o
 
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