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Petter A1 Project

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Re: Petter A1 Project

Post by Foden on Tue Apr 28 2015, 17:00

Woodsman wrote:Thanks Pete - Saturday, Sunday or both ?

Saturday, Sunday and Monday I was told by a chap at our club event last weekend.

Pete.

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Re: Petter A1 Project

Post by jakesdad13 on Wed Apr 29 2015, 11:08

Yes mate its all three days, I won,t be staying over as I haven,t got a towbar fitted to the van yet so I can,t pull the caravan, but if you come over look for the rusty old banger merc sprinter with lots of grey primer that will be me then!!

Pete.

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Re: Petter A1 Project

Post by Woodsman on Thu Jul 09 2015, 12:22

As our Villiers MK20 HS project seems about to hit the buffers we thought we might try the air filter on the Petter A1. Okay, it's a bit of Frankenstein job but we reckon it looks something like. What do you think?

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Re: Petter A1 Project

Post by Petter77 on Fri Apr 08 2016, 19:29

You have done well with the restoration, a cracking job there fella.

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Re: Petter A1 Project

Post by Woodsman on Sat Apr 09 2016, 08:02

Thanks. Sadly it will have to go to auction shortly as I keep tripping over it whilst working on new projects. Sad

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Re: Petter A1 Project

Post by Darryl Ovens on Fri Apr 15 2016, 22:13

The idea with shorting out the high tension, or rather not operating the mag when the secondary is open circuit, is that with no "load" the secondary voltage can get extremely high if it is not absorbed in a spark or short, so high that it can break down the coil insulation and in for practical purposes destroy the coil.
BTW air (even with fuel in it), at high pressure has much higher resistance than at atmospheric, hence some old spark plugs break down at high throttle (when compression is higher, therefore spark voltage is higher), even though they appear to test OK at atmospheric, and cause misfire when you try to load the engine or open the throttle much.

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Re: Petter A1 Project

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