It is currently Fri Nov 17, 2017 7:22 pm

All times are UTC





Post new topic Reply to topic  [ 1 post ] 
Author Message
 Post subject: Interchangability cilinders early 750ss and 750 sport
PostPosted: Mon Aug 17, 2015 1:03 pm 
Offline
User avatar

Joined: Sun Jul 26, 2009 7:35 pm
Posts: 104
Location: Haarlem, The Netherlands
model: 750 Sport
year: 1989
Hi,

Yesterday I found out that my new second hand engine from a '91 750 ss was stricktly air cooled. There is no casting around the cilinder to hold oil as on a 750 sport. The early 750 ss versions even came without a oil cooler (it was an option). I found out reading some literature. In noticed on a later post '91 750 ss engine that it has the oil castings on the cilinder.

So:
750 sport air/oil cooled
750 ss (91) air cooled
750 ss (92+) air/oil cooled

I also notice that the dowels in the oilway are sligthly different. The 750 ss has larger diameter passage compared to the 750 sport. I suppose this has something to do with the cooling (mass flow vs pressure?)

I was wondering what the interchangeability would be between the engines and there cilinders? Could a strickly aircooled set-up be installed on 750 sport lump? As far as I can tell there is no difference on the mating surfaces between the cases, cilinders and head. Could there be a difference in the oil-pump?

The heads differ slightly as the 750ss has a spherical combustion chamber.

Did some more reading and found that also the 750 sport came with either air cooled or oil/air cooled engines.


Kind regards,


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: