I've put the 500 version of the thermostat housing on the 650 engine. The direction that the hot-air outlet points is no problem despite the starter-motor appearing to be in the line of it.
I've adapted the metal transfer tube from the 500 tofit by drilling and filing a slot for the starter-cable stop and bashing it out of shape. But the problem I'm having is that despite that, there is not quite enough clearance between the tube and the starter to allow me to fully slip on the rubber outlet pipe, so the clip doesn't really grip.
MAL_3875[1] by Peter Thompson, on Flickr
It looks like the alternative steel transfer-tube available for the 126 and "R" doesn't have any different geometry to the 500 version, just the dent to clear the starter and the hole for the nylon stop.
Some of you must already have achieved this and I would appreciate knowing how.
I've adapted the metal transfer tube from the 500 tofit by drilling and filing a slot for the starter-cable stop and bashing it out of shape. But the problem I'm having is that despite that, there is not quite enough clearance between the tube and the starter to allow me to fully slip on the rubber outlet pipe, so the clip doesn't really grip.
MAL_3875[1] by Peter Thompson, on Flickr
It looks like the alternative steel transfer-tube available for the 126 and "R" doesn't have any different geometry to the 500 version, just the dent to clear the starter and the hole for the nylon stop.
Some of you must already have achieved this and I would appreciate knowing how.