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Re: Lucas DR3a Wiper Motor Issues...
Posted: Fri Jun 23, 2023 12:31 pm
by mk1
They are, but repro wheel boxes don't have a great reputation. Probably better to try & sort the original ones before trying new ones.
Re: Lucas DR3a Wiper Motor Issues...
Posted: Fri Jun 23, 2023 1:48 pm
by Peter Laidler
Totally agree with the above.
Further to this thread though. There is a problem with the push-pull rod that is attached to the drive gear rotor.Probably not in this case. But the brass bush that is riveted to the driven end, that hooks up to the drive on the rotor, wears out or elongates and as it does, the motor clonks like a bastard.
Just a point to be aware of......
Re: Lucas DR3a Wiper Motor Issues...
Posted: Fri Jun 23, 2023 7:11 pm
by Sixty2B
mk1 wrote: ↑Fri Jun 23, 2023 12:31 pm
They are, but repro wheel boxes don't have a great reputation. Probably better to try & sort the original ones before trying new ones.
I'd love to but they are unobtainium
Re: Lucas DR3a Wiper Motor Issues...
Posted: Fri Jun 23, 2023 7:11 pm
by Sixty2B
Peter Laidler wrote: ↑Fri Jun 23, 2023 1:48 pm
Totally agree with the above.
Further to this thread though. There is a problem with the push-pull rod that is attached to the drive gear rotor.Probably not in this case. But the brass bush that is riveted to the driven end, that hooks up to the drive on the rotor, wears out or elongates and as it does, the motor clonks like a bastard.
Just a point to be aware of......
Thanks Peter, I'll check that...
Re: Lucas DR3a Wiper Motor Issues...
Posted: Fri Jun 23, 2023 8:34 pm
by Peter Laidler
Check your private message box and come back to me........
Re: Lucas DR3a Wiper Motor Issues...
Posted: Sun Jun 25, 2023 11:33 am
by nick rogers
If it helps, I can tell you that the stroke of the operating arm in a 120 degree motor is 1" exactly. You can check this with a vernier quite easily if you remove the wiper motor cover and unclip the arm from the gear. If you have 1" then the problem is in rack and/or wheelboxes.
Re: Lucas DR3a Wiper Motor Issues...
Posted: Mon Jun 26, 2023 11:49 am
by Peter Laidler
That's the answer - from a man who knows......
Re: Lucas DR3a Wiper Motor Issues...
Posted: Tue Jun 27, 2023 10:32 am
by Sixty2B
Thanks everyone for your help.
After all your advice I'm 90% sure they wipers are over traveling due to wear.
As advised I'm trying to find some NOS items, not easy sadly
