gearbox cap on SD?

niander · Post by **niander** » Sat Jul 25, 2009 10:45 pm

gearbox cap on SD?

I wanna swop my gearbox cap with one that has an oil filler hole in it[for ease of maintenance] its off a 102 fits ok
anything i need to watch out for?
i notice the shims?...clearance?

Hugz · Post by **Hugz** » Sun Jul 26, 2009 1:08 am

Nippled box with end plate on SD though it could be an early AD box as has no clutch.

Hugo

niander · Post by **niander** » Sun Jul 26, 2009 10:54 am

Yes that's the one...did all sd's have a clutch?

Hugz · Post by **Hugz** » Sun Jul 26, 2009 11:28 am

Believe so. SDP's were direct drive, they seem scarce.

niander · Post by **niander** » Sun Jul 26, 2009 2:13 pm

Anyone about the shims?

Horsley-Anarak · Post by **Horsley-Anarak** » Sun Jul 26, 2009 2:51 pm

The shims position the crown wheel in relation to the pinion, when the crown wheel is bearing against the end of the cap.

I am making some for my SD at the moment, yesterday on its first outing it ran very well but the gearbox failed to mesh correctly.

I have measured the gap between the crown wheel and the cap bearing when the gears are fully engaged and it is 37 thou, so I will make a 25 thou shim as I would think the gears do not want to be run fully meshed.

Niander you missed a great day yesterday, of the three engines that I took H.I.D broke the one she was using, the one I was using stopped working and the SD would not mesh ( both of my boats being towed at the same time raised a few smiles

).

H-A

niander · Post by **niander** » Sun Jul 26, 2009 5:29 pm

both of my boats being towed at the same time raised a few smiles

Bet it did !

Making your own shims...you have all the gear dont you!

I would be grinding a thick one thin!...wit little grinder...

ok maybe not...

...

rosbullterier · Post by **rosbullterier** » Sun Jul 26, 2009 9:23 pm

Hells Bells HA, quelle disaster!!!!!!! - I'll return and tow you back up the Lerryn if neccessary . . .

Horsley-Anarak · Post by **Horsley-Anarak** » Sun Jul 26, 2009 9:32 pm

When is this years Lerryn race?

H-A

Post by **Charles uk** » Sun Jul 26, 2009 10:16 pm

RBT you'll have to borrow Timberland's boat, he pulled 4 of us boats along the Thames at the speed limit, & didn't even break into a sweat!

The Thames is a proper river, not a Cornish creek.

rosbullterier · Post by **rosbullterier** » Sun Jul 26, 2009 10:16 pm

Christmas

Mind you - look up the Fowey tide times and we could have a bet on the likely date . . .

rosbullterier · Post by **rosbullterier** » Sun Jul 26, 2009 10:21 pm

When did you last get stuck (until the next tide) on the mud on the Thames?

Horsley-Anarak · Post by **Horsley-Anarak** » Sun Jul 26, 2009 10:22 pm

Stuck next to the pub

H-A

rosbullterier · Post by **rosbullterier** » Sun Jul 26, 2009 11:05 pm

Hah hah HA . . .