wyatt
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| posted on 3/4/07 at 02:56 PM |
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Self dimming lights!
I need help
I took my car on a bit of a run Liverpool to Lancaster and came back in the dark the problem is as I drove along the lights were on main beam and
would go bright then dim all on there own and would stay dim then brighten up
Any Ideas!!!!!!
www.bynxy.co.uk
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speedyxjs
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| posted on 3/4/07 at 02:58 PM |
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What car is it?
How long can i resist the temptation to drop a V8 in?
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Rek
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| posted on 3/4/07 at 02:59 PM |
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is that bright and dim in relation to engine speed?
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RazMan
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| posted on 3/4/07 at 03:00 PM |
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Alternator belt loose?
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Fatgadget
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| posted on 3/4/07 at 03:01 PM |
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Id patent the concept if I were you!
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wyatt
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| posted on 3/4/07 at 03:03 PM |
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In responce to the above
1600 xflow westfield
it seemed to happen all the time flat out or slow!
www.bynxy.co.uk
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iank
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| posted on 3/4/07 at 03:03 PM |
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If there is no pattern it could be a bad earth that gets better or worse depending on vibration.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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whitestu
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| posted on 3/4/07 at 03:24 PM |
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Could be the voltage regulator on the alternator.
Were the dash lights going dim / bright as well?
Stu
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britishtrident
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| posted on 3/4/07 at 03:55 PM |
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The standard Xflo alternator is a Lucas ACR type which have old the standard 3 spade block connector, as these are carry a high current and are
exposed to excessive vibration hence are very prone to arcing, which causes big problems for the alternators solid state voltage regulator.
Clean the spades (either remove the rear cover for acess or use a nail board) and also crimp the connectors slightly so they make better contact.
Apart from that as already suggested clean and check all main earth abd batter connections, and fan bely.
Also do quick check on the charging voltage on and off load at 2000 to 3000 rpm
[Edited on 3/4/07 by britishtrident]
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russbost
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| posted on 3/4/07 at 04:31 PM |
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Second the above - I suspect when you remove the plug from the alternator it will be blackened & cooked - the reg might have survived but might
not. if the plugs not cooked & the belts tight then sounds like a dodgy reg.
I no longer run Furore Products or Furore Cars Ltd, but would still highly recommend them for Acewell dashes, projector headlights, dominator
headlights, indicators, mirrors etc, best prices in the UK! Take a look at http://www.furoreproducts.co.uk/ or find more parts on Ebay, user names
furoreltd & furoreproducts, discounts available for LCB users.
Don't forget Stainless Steel Braided brake hoses, made to your exact requirements in any of around 16 colours.
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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BenB
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| posted on 3/4/07 at 06:22 PM |
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I had a similar problem on a Xflow when I didn't use a nylock to "secure" the alternator (I used the stupid
"self-gripping" flanged nut provided by Halfrauds).... Bag of pants.... Alternator ended up being attached by one bolt when the other one
fell off..... Instant loss of belt tension and hence alternator drive....
Luckily a very friendly bloke drove past (this was in deepest darkest Northern Ireland), stopped and went 3 miles to have a rummage in his garage and
found a motorbike head stud and four nuts to go with it which I was able to temporarily re-attach it until I got the local B+Q 25 miles away.... Top
geezer!!!!
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davrus
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| posted on 3/4/07 at 07:07 PM |
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My guess, Bad earth
Check out my website http://www.thedave.co.uk/
Feel free to sign my guest book in the links page.
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wyatt
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| posted on 4/4/07 at 07:36 AM |
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Hi whitestu yes the dash lights were doing the same dimming and then going bright!
Thanks to everyone for all your advice it looks like I know what I am doing this weekend
www.bynxy.co.uk
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MikeRJ
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| posted on 4/4/07 at 03:37 PM |
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Had a Lucas alternator on a mini do exactly this, and the lights were getting very bright indeed. Turned out to be a dead voltage regulator, but was
cheaper to get a recon alternator.
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