Relay clicking

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Locked
phatgit

Relay clicking

Post by phatgit » Wed Nov 17, 2010 9:22 pm

Evening all,
got home from work,turned off lights,stop engine & take out key, i can hear a relay clicking about once a second,sounds as if its around the steering wheel, never heard this before, just wondering if anyone knows whats causing this, must have been clicking for around 4-5 mins
User avatar
mister munkey
Supreme Being
Posts: 5184
Joined: Mon Oct 01, 2007 9:11 pm
Location: Not Far From Royston Vasey, West Yorkshire
Contact:

Re: Relay clicking

Post by mister munkey » Wed Nov 17, 2010 9:33 pm

Possibly residue of a defunct Turbo Timer that has suddenly burst into life . . .

Do you know if it ever had one?
The only true wisdom is in knowing you know nothing. http://www.travelblog.org/Bloggers/MisterMunkey
phatgit

Re: Relay clicking

Post by phatgit » Wed Nov 17, 2010 9:59 pm

not aware of one fitted or otherwise, haven't found any remains in/on the dash, no odd holes anywhere or unexplained wires hanging
jaylee
Supreme Being
Posts: 5500
Joined: Wed Mar 05, 2008 4:56 pm
Location: AQVAE SVLIS

Re: Relay clicking

Post by jaylee » Thu Nov 18, 2010 1:03 am

Alarm maybe set up for some sort of passive arming but cant quite pull it off...?? :-k
Cheaper by comparison to a race horse...
Image
User avatar
wormey
Supreme Being
Posts: 1449
Joined: Fri Aug 29, 2008 12:28 pm
Location: North Essex

Re: Relay clicking

Post by wormey » Thu Nov 18, 2010 9:07 am

Could it be the metal work cooling down making a clicking noise,
Daz and debs
User avatar
Tony C
Bongolier
Posts: 146
Joined: Fri Jun 27, 2008 8:58 pm
Location: Paignton South Devon

Re: Relay clicking

Post by Tony C » Thu Nov 18, 2010 6:23 pm

Have been having the same problem over the past couple of weeks, quite a loud intermitent clicking from somewhere behind speedo area, deffo a relay playing up, after much investigating traced it to the willinton split charge kit, thinking it could be affected by recent damp weather. Just drove 100 miles today & no further problem, so fingers crossed.
I intend to live forever - so far, so good!
phatgit

Re: Relay clicking

Post by phatgit » Fri Dec 31, 2010 3:56 pm

found the clicking, it's the willington relay,bongo has been idle this week,found the LB down to 9.4v, so started engine, main batt getting 14.35v LB getting 13.8v,occaisionally this relay is clicking but cant find why! anyone got any ideas?
happy new year to you all
User avatar
g8dhe
Supreme Being
Posts: 10856
Joined: Sun Apr 13, 2008 10:06 pm
Location: Worthing, West Sussex.

Re: Relay clicking

Post by g8dhe » Fri Dec 31, 2010 4:21 pm

Simple its a Voltage Sensitive Relay (VSR), when the relay senses that the S/B is above about 13.8v-14.0v it switches in to allow the L/B to charge, at which point the voltage falls and the relay drops out as the voltage falls. Normally there is an adjustment on some relays to set this up correctly. You really only want the relay to pull in once the alternator is running and the S/B is pass the initial charge stage which will be somewhere in the range quoted above, its possible that the relay is operating at a much lower voltage and hence all the clicking, if you have a voltmeter available measure the S/B voltage whilst it is clicking and see at which point it clicks in and out then if the relay has an adjustment try adjusting it, otherwise get back to Willinton as he normally gives a good aftercare service as well.
Geoff
2001 Aero V6, AFT, full side conversion.
Locked

Return to “Techie Stuff”