Model d mag housing

[Trotter68]

Hi all I'm new to this site , so a big hello ,I have restored a j50 and a li 125 , now having ago at a model d ,which I found to be quite a bit different, the piston and crank was seized I tried to remove mag housing and yes it broke can anyone please advise me where I can buy one

Thanks

Rod

[jbcollier]

Here's one:

http://www.olimpiaparts.eu/en/shop/rica ... -ld-detail

[Trotter68]

Got it Thank you

[jbcollier]

If you are in the UK, Howard Chambers is the bevel-drive guru.

[Trotter68]

That mag was for a 150 so I'm still looking

Thanks

[Steve J]

The mag housings are the same for 125 & 150 engines.....however, there are variations on the side of the housing for getting the ignition and lighting wires out through the housing from the stator. If yours is an early D/LD type, the HT winding is built into the stator plate assembly, so there is one connector for the HT lead to the plug, and a separate connector which screws into the mag flange for the lighting output and the ignition cutout connection. Later machines (from around 1956 onwards) with the separate external HT coil generally have a single rectangular connector/terminal block which slots into an aperture in the mag housing, held in place by a single screw. That connector has three connections, taking two connections from the lighting coil, and the LT ignition feed. (There was also an intermediate version which had the external HT coil, but still retained the screw-in connector for the lighting connections and the LT connection to the HT coil.)
If you could identify whether your engine has the separate HT coil or the one built into the stator, that would help.

[Trotter68]

Thanks for the reply mine is the 1953 model with the coil built into the stator

[Steve J]

Thanks for the reply mine is the 1953 model with the coil built into the stator

You will need the early mag housing, fitted up to about 1955, with the two holes for connectors for the HT lead and the lighting & ignition cutout wires. If you can't find one, the later mag housings should fit, but you would need to fit a low tension ignition coil in place of the combined LT/HT unit, and fit an external HT coil. I accept that it's not original, but it's probably more reliable than the earlier system, which apparently could be unreliable in the damp British weather!

[Trotter68]

Thanks for the replys I think I found one will keep you updated