I've been out in the garage trying to get my Petter PU8 to start. There 
appears to be no spark on the plugs. I've cleaned the points on the magneto 
and although I haven't got a set of feelers gauges the gap looks to be about 
the same as on a Morris Minor. (Someone at a fair yesterday advised me to 
set them to 25 thou). Now whether or not the gap or the timing is bang on I 
should still be getting some sort of spark yes? Is there anything else that 
would be stopping me getting a spark?

Thanks

-- 
Malc

Malc,

I had a PU8 for a few years and if I remember correctly you have a BTH 
Magneto, where the plug leads connect, if you take the bakelite bodies away 
that the leads connect in you may find springs and carbon brushes and a slip 
ring on the mag shaft, give this lot a good clean and reassemble then try 
again.

Martin P

"malc"  wrote in message 
news:mPi_j.9284$DZ6.6442@text.news.virginmedia.com...
> I've been out in the garage trying to get my Petter PU8 to start. There 
> appears to be no spark on the plugs. I've cleaned the points on the 
> magneto and although I haven't got a set of feelers gauges the gap looks 
> to be about the same as on a Morris Minor. (Someone at a fair yesterday 
> advised me to set them to 25 thou). Now whether or not the gap or the 
> timing is bang on I should still be getting some sort of spark yes? Is 
> there anything else that would be stopping me getting a spark?
>
> Thanks
>
> -- 
> Malc
>

campingstoveman wrote:
> Malc,
>
> I had a PU8 for a few years and if I remember correctly you have a BTH
> Magneto, where the plug leads connect, if you take the bakelite
> bodies away that the leads connect in you may find springs and carbon
> brushes and a slip ring on the mag shaft, give this lot a good clean
> and reassemble then try again.
>
> Martin P
>
Thanks Martin. I'll have to find some quarter inch a/f spanners methinks. I 
was going to Halfords tomorrow anyway.

-- 
Malc
Do not use the area outside this door for a urinal

Did you take the points right off the base plate and crack off the oxide 
which will certainly have formed on them if its not been used in (say) a 
year?

If not, you have probably only cleaned the oxide! Take them right off then 
stone them up with 800 grit wet & dry lubricated with a little light oil. 
wipe with meths & reassemble. A bit of thin card will gap the points but if 
you have CLEAN feelers, try 18 thou to start with.

Fit new plugs, no suppressor caps, try again.

BTW, PU8s are known to be both difficult to start & thirsty brutes which is 
why someone cannt shift them even at £95 each!

regards,

Kim Siddorn

>

Kim Siddorn wrote:
> Did you take the points right off the base plate and crack off the
> oxide which will certainly have formed on them if its not been used
> in (say) a year?
>
> If not, you have probably only cleaned the oxide! Take them right off
> then stone them up with 800 grit wet & dry lubricated with a little
> light oil. wipe with meths & reassemble. A bit of thin card will gap
> the points but if you have CLEAN feelers, try 18 thou to start with.

Didn't try that I must admit. They don't look like the easiest things in the 
world to remove.

>
> Fit new plugs, no suppressor caps, try again.
>
> BTW, PU8s are known to be both difficult to start & thirsty brutes
> which is why someone cannt shift them even at £95 each!
>
I got mine for £56 as a non runner.

-- 
Malc
Do not use the area outside this door for a urinal

Undo the centre bolt. Wiggle it around in the hole & the points base plate 
will drop out ready for disassembly. Don't loose the tiny screws & remember 
where the insulating washers go.

regards,

Kim Siddorn

"malc"  wrote in message 
news:8EZ%j.289$E41.269@text.news.virginmedia.com...
> Kim Siddorn wrote:
>> Did you take the points right off the base plate and crack off the
>> oxide which will certainly have formed on them if its not been used
>> in (say) a year?
>>
>> If not, you have probably only cleaned the oxide! Take them right off
>> then stone them up with 800 grit wet & dry lubricated with a little
>> light oil. wipe with meths & reassemble. A bit of thin card will gap
>> the points but if you have CLEAN feelers, try 18 thou to start with.
>
> Didn't try that I must admit. They don't look like the easiest things in 
> the world to remove.
>
>>
>> Fit new plugs, no suppressor caps, try again.
>>
>> BTW, PU8s are known to be both difficult to start & thirsty brutes
>> which is why someone cannt shift them even at £95 each!
>>
> I got mine for £56 as a non runner.
>
> -- 
> Malc
> Do not use the area outside this door for a urinal
>
>