Voltages on tusc,tam,350, sag, whats yours?
Voltages on tusc,tam,350, sag, whats yours?
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Discussion

m3jappa

Original Poster:

6,948 posts

247 months

Wednesday 4th April 2012
quotequote all
I seem to be charging at a max of 13.9v . Typically its down at 13.7.

Now i know that for some reason some alternators do charge below 14v but this seems too low to me.

When i put on the air con it really drops, it sees about 13.2 which is no good at all, this suggests volt drop across the cables and would be an easy fix, just need a bigger live to alt from chassis and a bigger earth to chassis, anyone else done this?

I also wonder if this is why my windows are weak (drivers side is bordering laughable) as after i fully charge my battery it seems better.

Zippee

14,123 posts

263 months

Wednesday 4th April 2012
quotequote all
Sound about the same as my T350 TBH.
Window is likely to just need the runners lubricating, take the door card off and spray silicon lube on all the runners and it should improve loads (I speak from experience).

m3jappa

Original Poster:

6,948 posts

247 months

Wednesday 4th April 2012
quotequote all
I have sprayed so much silicone spray its dripping out the holes on the bottom of the door hehe tried encoder and its not that.
Strangely it seems to work perfectly occasionaly.

Don1

16,779 posts

237 months

Wednesday 4th April 2012
quotequote all
IIRC, around the 13.7-9 range.

cantus

932 posts

281 months

Thursday 5th April 2012
quotequote all
mine is between 13.7 & 13.9

Cats

1,007 posts

203 months

Thursday 5th April 2012
quotequote all
I took the Tusc to Cornwall last year (about 220 miles each way) and noticed that it was charging at 14.2volts. Didn't feel overly concerned but thought it was a bit high. Guess what? On return journey about 10 minutes from home the alternator packed up completely (well that's when the battery died) so it must have packed up before that but as it was tipping down, my concentration was somewhat to which way I was pointing yikes
New alternator charges at 13.9 - 13.7v

m3jappa

Original Poster:

6,948 posts

247 months

Thursday 5th April 2012
quotequote all
Seems they must just charge quite low, I know some vauxhalls do as well.

I may well beef the wiring up though as it struggles with the ac on

450Nick

4,027 posts

241 months

Thursday 5th April 2012
quotequote all
Yeah this is normal for a TVR, I asked the same question about mine after I put on a brand new one.. No idea why, but they all seem to charge to the same level.

truck71

2,328 posts

201 months

Thursday 5th April 2012
quotequote all
Normally 14.1 on my Tuscan so in the ballpark you describe.