Failing Cerb Alternators
Failing Cerb Alternators
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Rev-erend

Original Poster:

21,619 posts

313 months

Friday 24th June 2005
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Is it a common problem with Cerbera alternators failing due to high temps.. this recent heat wave seems to caused a few.

Is the alternator in the vee of the engine..

Has anyone put heat shielding of any kind of the underside / rear..

flashheart

581 posts

271 months

Saturday 25th June 2005
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It is funny isn't it. I am going to be so cynical here (only because it is Saturday morning and I am awake at this hour) but doesn't this just sum up TVR. In their desire to build a compact engine they do not think of the wider implications (testing?) of the enormous amount of heat generated by the engine which is why they put a hard-working piece of electrical equipment in the hottest part and then cover it with the fuel manifold. Mine went last year, got a new one, and am waiting for this one to go at some point in the future. I thought about running some ducting from the intake up to where the alternator is but lost interest.

2 sheds

2,529 posts

313 months

Sunday 26th June 2005
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TVR tested the AJP on the curcuit in the Tuscan series which was a great idea, except that the tuscans if IIRC had the alternator from the diff.
It is possible to have electrical components that work reliably in high temp environments, i have fans etc in my autoclaves.
Not sure that the alternator on the Cerbera gets any hotter than on the Griff/ Chim which sit next to the exhaust manifolds, but sadly a much bigger job to replace.

cerealsurfer

594 posts

292 months

Sunday 26th June 2005
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I was chatting to Yellow Peril at Thruxton and he did locate a company in London. (when trying to answer the same question) That could increase the reliability and lifetime of starter and possibly also alternator.

Something to do with silver soldering/uprated wiring and additional hi-heat clutch elements...

£90 for the re-furbish to hi-heat specification.

He should be able to point you in the right direction.