6 to 12v conversion

[arcturus]

Hi again I have decided to bite the bullet and the conversion at the same time as rebuild. Sourcing a dynamo, regulator and blower motor. Ron,will contact you regarding the converter for wiper motor. Horn,I have a spare 12v. will I need to change the relay?

[Ron Kwas]

Arcturus;

6V Relays should be changed when going to 12V, as they will likely overheat with double V applied. See also: https://www.sw-em.com/Ignition_Slave...us_duty_relays

...if you cannot locate a 12V Wiper Motor (first choice!), running the original 6V unit with a Dropping Resistor is always an option. I'm sure you've seen this, but here is the link again: https://www.sw-em.com/Vintage_Volvo_...conversion.htm

...there is even some of your 12V converter info posted there, but this is for low current loads up to 2A...I expect these modules would not have an adequate output for the Wiper Motor...you could make some current measurements to verify (and remember: Motor current increases with mechanical load).

Cheers

[arcturus]

Ron ,would the DR's shown be up to the job of running wiper motor. Changing to a 12v means taking off dash which requires in turn removal or wind shield.If so do you have any spare.Send PEM with details if you can oblige,or details of where they can be obtained.

[arcturus]

Managed to locate most of the stuff. I will need to stick to the original start motor as the 12v doesn't fit or so I have been informed. I hope it doesn't knacker the solenoid.
Ron,does the full current run that or is it like a relay,a switch?

[Ron Kwas]

arcturus;

Preferred first option is always to replace 6V components with 12V, and many of these exist because later Volvo models also went to 12V. If you cannot locate, or have another reason for not changing to the 12V version, DRs are the second choice, and yes, one could be installed for the Wiper Motor (although removal from an Amazon does not require glass removal and is otherwise not unreasonable...I can't speak to level of difficulty removing Wiper Assy on 544).

For answers to other questions, I refer you back to the article and notes, including reports of first-hand experience.

Cheers

[arcturus]

I have sourced all the components required including wiper motor. I have been informed that the 12V starter won't fit. not sure if I can swap a solenoid from a 12v. They look as though they are permanently attached. Would the 6v solenoid burn out? Is there a way round this?