Dynastart struggles to turn.
Posted: Sat Dec 14, 2013 8:54 pm
Electrical woes have hit Lurch big time! First it was a sticking solenoid. I took that to pieces and cleaned / reassembled (detailed in another thread). But I think because of the sticking solenoid, it has done some damage to the Dynastart.
So I took that off today and the wires to the brushes show signs of having been very hot at some point. Cleaned things up and reassembled whilst I wait for some new brushes from Haflinger Tecchik. It still does not seem to turn the engine over very fast, although I know it will only go at a certain speed even if it is 100% correct.
The real test will be when it is very cold like the other morning when we had a hard frost. It would act like it had a flat battery although it was new and fully charged.
The two books (repair manual and handbook) are both really vague about how you are supposed to check the brushes. I will have to buy one of those "snake cams" so I can see the brushes having only taken off the covering band, but even that you have to take a couple of wires off before you can remove it!
I am also not very enthralled by the use of two little pegs which locate the Dynastart motor and the dynastart fan. They are critical to engine timing and so ought to be a bit more substantial. A little bit of "chattering" due to a loose band and your engine timing will be difficult to set correctly.
John
So I took that off today and the wires to the brushes show signs of having been very hot at some point. Cleaned things up and reassembled whilst I wait for some new brushes from Haflinger Tecchik. It still does not seem to turn the engine over very fast, although I know it will only go at a certain speed even if it is 100% correct.
The real test will be when it is very cold like the other morning when we had a hard frost. It would act like it had a flat battery although it was new and fully charged.
The two books (repair manual and handbook) are both really vague about how you are supposed to check the brushes. I will have to buy one of those "snake cams" so I can see the brushes having only taken off the covering band, but even that you have to take a couple of wires off before you can remove it!
I am also not very enthralled by the use of two little pegs which locate the Dynastart motor and the dynastart fan. They are critical to engine timing and so ought to be a bit more substantial. A little bit of "chattering" due to a loose band and your engine timing will be difficult to set correctly.
John