I am in the process of preparing my recently purchased VB for the italian Rally next week. It started and ticked over yesterday but smoked heavily from the exhaust. I thought the oilpump is not pumping back to the tank propperly.
So I took the timingcover off to find many aluminium particles. Off with the sump plate to find even more and bigger aluminium particles. Then I decided to take the VB's barrel off to find a piston missing a bit. See the photos!
http://forum.arielownersmcc.com/downl ... ew&id=6709
http://forum.arielownersmcc.com/downl ... ew&id=6708
I had a word with our single spares organizer. Hope he can find me a nice replacement Piston.
Best regards
Klaus
VB piston missing a bit
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- paul.jameson
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Re: VB piston missing a bit
In my humble opinion, the piston might get you there but I would advise that it is distinctly life expired so should most certainly be replaced.
Paul Jameson
35 LG (project), 37 RH500, 52 ex ISDT KHA, 54 KH(A), 75 Healey 1000/4.
Former Machine Registrar & Archivist, General Secretary and Single Spares Organiser (over a 25 year period).
Now Archivist (but not Machine Registrar), Gauges and Clocks Spares Organiser.
35 LG (project), 37 RH500, 52 ex ISDT KHA, 54 KH(A), 75 Healey 1000/4.
Former Machine Registrar & Archivist, General Secretary and Single Spares Organiser (over a 25 year period).
Now Archivist (but not Machine Registrar), Gauges and Clocks Spares Organiser.
- Steven.Carter
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Re: VB piston missing a bit
Ouch, and was it still going! Brilliant
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Re: VB piston missing a bit
It certainly does make you wonder about thermal slot pistons. I have seen numerous failures, but the normal method if failure is for the top to come off the piston with a break extending horizontally from the thermal slots. Such failures are generally however in higher performing engines. I would not have expected a failure in the VB. The piston in my VB is a Hepolite T slot that came from Single Spares, ouch.
David
David
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Re: VB piston missing a bit
moving this to a "bad thing happened to my Ariel" .. for posterity
John Nash
AOMCC No.4119
''78 t140 bonneville, '77 BMW R80, '67 CJ750, 196-ish Ural M62 outfit, '51 VH500, '49 project Ariel , '47 VH twinport, '44 Ariel WNG, '42 indian 741b, '41 Ariel WNG and piles of rusty scrap ....
AOMCC No.4119
''78 t140 bonneville, '77 BMW R80, '67 CJ750, 196-ish Ural M62 outfit, '51 VH500, '49 project Ariel , '47 VH twinport, '44 Ariel WNG, '42 indian 741b, '41 Ariel WNG and piles of rusty scrap ....
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Re: VB piston missing a bit
[img]
Thought you might like to see another VB piston that did the same thing! It happened about 30 years ago, but I keep it as a souvenir! Like yours, it kept going but the bits of aluminium in the tank gauze filter alerted me.
Regards, MikeN.
[/img]Thought you might like to see another VB piston that did the same thing! It happened about 30 years ago, but I keep it as a souvenir! Like yours, it kept going but the bits of aluminium in the tank gauze filter alerted me.
Regards, MikeN.
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