Thanks Martyn et al As I said, it works with direct operation, and it works by-passing the relay.
I asked him about the earth straps and connections (satisfactory) but it does work directly anyway. I wondered about the extra relay and different wire sizes, hence my concern if more current went through the ignition/starter switch. Maybe that is why the relay had been added if it was not original equipment. Does any Moss Box +8 owner know if it was original equipment? Brian (SpotMog) On Wed, Aug 1, 2012 at 9:44 AM, Martyn J Culling <[email protected] > wrote: > Makes sense, but the first email said there was no problem with direct > operation. Granted the battery or earth could be so marginal as to work ok > on a direct connection but with the added load of a relay coil, causes it > to drop out and start buzzing. However a relay coil is a pretty small load, > otherwise you’d not fit one. **** > > ** ** > > My guess is the relay, not the solenoid, is dropping out when the starter > operates, so stops and causes the buzzing. But from what was said, I’d > think on low voltage the relay drops out before the solenoid, hence working > ok on a direct connection.**** > > ** ** > > A Morgan of that age could easily have a duff earth, so attention to the > earth lead may well cure the problem. But I’m still inclined to think the > relay has been added, and is an owner modification. As a result I’d still > look into this as although improving the earth or high current feed may > cure the problem, if the relay is not really needed, it would be a simpler, > hence more reliable car without.**** > > ** ** > > Somebody must have a wiring diagram for the car?**** > > ** ** > > rgds Martyn**** > > ** ** > > *From:* e-mail colin.jones5857 [mailto:[email protected]] > *Sent:* 01 August 2012 10:24 > > *To:* mogtalk2 > *Subject:* Re: [mogtalk2] Moss Box +8 starter**** > > ** ** > > Guys**** > > **** > > Late to this, Brian is right, a buzzing solenoid is nearly always a low > battery voltage or a duff earth. The following should help diagnose.**** > > **** > > Get some jump leads**** > > **** > > Attach one end of one lead to the engine block/bell housing is fine, just > get a good earth. Attach the other end of that lead to the battery > Negative terminal. Try to start the car, if it starts its a bad earth > lead, not exactly unknown, just fit another (mine has 3).**** > > **** > > If that does not work just jump the battery from a known running car > battery, remember to connect one lead at a time! If that does not work..... > **** > > **** > > Take the positive lead from the jump leads off the battery and connect > direct to the starter solenoid large cable input stud (just clamp it on) if > that fixes it you have a major voltage drop in the main supply lead (very > unlikely and rarely seen).**** > > **** > > If all else fails give the starter solenoid a sharp rap with a metal > bar/large socket extension/small hammer to see if its sticking through lack > of use.**** > > **** > > My money would be a bad earth caused by a corroded earth strap, most of > these problems are caused by that.**** > > **** > > Hope that helps.**** > > **** > > BR**** > > **** > > Colin**** > ------------------------------------------- View posts on The Mail Archive http://www.mail-archive.com/[email protected]/ [http://www.mail-archive.com/[email protected]/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785&id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
