SOLD! LAVERDA 750 SF / SFC Primary Chain Case NOS

lavgert

lavgert

Hero member
Location
Vienna, Austria
LAVERDA 750 SF and 750 SFC - NOS primary chain case, never mounted, will need a good polish. Price EUR 200,?. Detailed pix and shipping costs on request. Email or PM me if interested.
Ciao, Gert
 

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Nice offer, Gert, and a reasonable price.

I often use my experience with the incredibly low cost of Laverda spares back in the 70s. For 30% less than the price of a Kawasaki Z1 chromed tin plate points cover, i bought the primary chaincase cover you're selling - I'm sure I still have the receipt for it, something like AUD$15 ... I might see if I can find it. Mondial pistons were AUD$13 ea. Sure, the dollar was worth more back then, but the c/w Japanese bits was the key. And evcen I could afford spare parts - and I never really had much moula beyond the weekly rent and food.
 
I cant give you details, but a long time ago a local lad was doing some work on his SFO, I don't remember why he needed a new replacement cover for his bike, there may have been some damage in the ignition drum perhaps, but he did, and he bought a new one from Slaters, this was about 1973, it came a few days later, while he was trying to fit it, there was much grief, that I was not party to, it involved a huge amount of wap, wap wapping with large hammers, and he broke the cover! a second one was ordered and duly arrived and  then the difference was clear and the replacement just plopped on.

Part numbers should disclose that, the part number for an SF3 is 25301001, I have checked SF1 and its the same, can someone with an early parts book please have a look, pre '70 would be good

CLEM
 
There are no "25 301" numbers listed in any parts price list that I have  lower than the "001" number you quote - i do have a massive book that I got from the factory - the next number down is a "25 203" number (cylinder liner). I've never seen a different chaincase - would think that the bearings and/or crankshaft/g-box mainshaft would need to be different too. Perhaps it was a rogue overmachined cover or something?? - Regards - Phil
 
... I checked my 750 manuals. The parts number for the 750 primary chain case is
1969, 1970, 1971: M 71
1972, 1973, 1974, 1975, 1976, 1977: 2530100166

Then I checked the dimensons of the bearings also: Crankshaft ball and roller bearings are the same dimension: 35x80x21
Neddle bearings all the same over the years: 20x32x16 and 22x30x16

Ciao, Gert

 
The only difference I've found between early and later covers are the locating dowels used with the early ones.  These make fitting and removing them a pita, as if the crank and mainshaft didn't locate them positively enough.

I've just rebuilt a couple of very early 750s, did not detect anything out of the ordinary.

piet
 
then I will put it down to the 21 year old with the big hammer!
maybe I didn't get the full story at the time, likely, so as to save his self embarrassment.
CLEM
 
CLEMTOG said:
then I will put it down to the 21 year old with the big hammer!
maybe I didn't get the full story at the time, likely, so as to save his self embarrassment.
CLEM
Click to expand...

All 21 year old's reckon they have a big one. But, as the French say: better a hard working small one than a lazy big one. Hammer.

Paul
 
so I am not entirely wrong. early ones are dowelled, late ones are not, are these dowels beside or "on" stud holes Piet?

the man with the big hammer may have been belting an early one onto the dowels stuck in the crankcase, and the cover with no drilling for them?
CLEM
 
CLEMTOG said:
so I am not entirely wrong. early ones are dowelled, late ones are not, are these dowels beside or "on" stud holes Piet?

the man with the big hammer may have been belting an early one onto the dowels stuck in the crankcase, and the cover with no drilling for them?
CLEM
Click to expand...

The dowels are "stand alone", one at the front, one at the rear.  Gaskets still have the appropriate holes for them.

piet
 
which will fit any engine Early) with or (late) without dowels, now I understand the blanks that (a very long time ago) I wondered what they were for
 
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