Phil Irving once remaked that the ESA "hump" was a shape modelled on a female breast, so perhaps someone at the foundry had a change of totty!
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When was the switch from "B" to "C" primary cover?
- Thread starter johnmead
- Start date
Aren't B's also distinguished by a different gear change cover, no "bridges" between cooling fins on the heads, and as in the submitted text above, no slot in the UFM to accomodate a hydraulic damper for the RFM?
Paul Richardsons notes, slotted UFM for hydraulic dampers after approx frame number 3500,
Going back to the original query about B/C primary covers. As noted above, it is not just clutch cover with the 'round' or 'round with a flat base' that is different. The fixing holes, and hence the cast in bosses for the fixing screws in the primary cover are at a totally different orientation. The flat base neccesitates two screws at each end of the flat and this dictates the positions for the other screw holes and bosses. The earlier covers have the holes orientated 30 degrees different from the later ones with one screw in the middle of bottom of the circle, where the later clutch covers have a flat.
As for bits beiing designed upon mammary glands; gentlemen consider the range of sizes and shapes. Everything from what our French friends describe as two fried eggs the the 'Victorian' matriachal type which reminds one of a galleon under full sail and upon which one could lodge ones dinner plate.
As for bits beiing designed upon mammary glands; gentlemen consider the range of sizes and shapes. Everything from what our French friends describe as two fried eggs the the 'Victorian' matriachal type which reminds one of a galleon under full sail and upon which one could lodge ones dinner plate.
Thank you all for your comments. For now I will keep both covers. Also, the bosses that have the tapped holes for the clutch dome are the same in both the "B" and "C" covers that I have.
It just looks like they moved everything one boss and drilled and tapped them, so you could put a "C" clutch dome on a "B" primary cover by drilling and tapping the holes on the skipped bosses.
It just looks like they moved everything one boss and drilled and tapped them, so you could put a "C" clutch dome on a "B" primary cover by drilling and tapping the holes on the skipped bosses.