Saving Old Seagulls

Hi guy,s does this base plate look right or is it to much of a gap or possibly wrong base plate for this model SD cheers

Base plate looks right, is the flywheel all the way down, or is the key way off kilter.

Hi keith that,s it without keyway out tried it both ways same result

I think that the base plate is incorrect.

Perhaps from an air cooled stationary 4 stroke or similar.

Check the pics from the same angle. The casting and boss is very different. Note the engine number. If there is a JM number on the plate please let us know.

Note position of fasteners as well that secure components to inside.

Check the taper on the flywheel if it did not come with the power head. Bearing blue or black marker on taper and rotate flywheel once on shaft. Check that the taper has been wiped clean.

A pic of from above would be interesting by the way?

Everything shiny briny..........

B[/color]

Thank,s guys this base plate and flywheel could well be from to different motors dont know for sure there is numbers on base plate will upload when home also a jm number on flywheel thank,s

2nd pic

Hi B baseplate looks much the same as your,s took other pics numbers on baseplate look like1187x4 and what looks like 106 flywheel numbers are jm11579 inside numbers are fw1450 and 1098k1 hope this makes sense thank,s

Pic 2

Will look better without the paint..

Yes i agree it came that way but will be removed when i get it sorted or should i say IF,,,

Have a measure of the hight of the crank coming out of the block, as the base plate looks normal, so its either going to be the crank or the flywheel that's the problem.

Thank,s keith does this make any sense

Puzzled, first second and third pictures are of an SD crank case, but not the last.
I think its just a mater of the wrong parts.

Yes keith your spot on that last pic was wrong it should be this one

I have a similar problem with my SD, except with mine the problem is with the points box cover is only just catching/rubbing on the underside of the flywheel?
(probably a worn lower crank bush)


Have you taken the crackcases apart yet? It might be the bottom crank bush has taken the brunt of wear and tear over the years. (identical problems with later 102's)


jon