Hairpin valve springs
- Pharisee
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Hairpin valve springs
There's a set of 3 coil valve springs just popped up on eBay, quoted as being for a 7R / G50. Would they be significantly different to the springs normally fitted in a road going 350/500 AJS or Matchless? I have need of a pair for my longstroke 500 and was wondering if these would be OK.
https://www.ebay.co.uk/itm/AJS-7R-Match ... ctupt=true
https://www.ebay.co.uk/itm/AJS-7R-Match ... ctupt=true
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- 1608
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Re: Hairpin valve springs
I may be wrong, but they should be fine. I don't think they produced those hair springs any stronger for the models quoted. I think the seller just mentions those so the ad comes up on searching. They don't appear to be to worn either.
Seem to remember yours were quite bad.
Seem to remember yours were quite bad.
- Rob Harknett
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Re: Hairpin valve springs
Advertise in the club mag for used springs with little sign of wear. Many would have changed springs thinking they would have weakened, but would have plenty of life still left in them. I have used kept as spares for my bikes.
- spookefoote1956
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Re: Hairpin valve springs
Pharisee can you PM me please.
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- Pharisee
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Re: Hairpin valve springs
Have just done so. )spookefoote1956 wrote:Pharisee can you PM me please.
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- ajscomboman
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Re: Hairpin valve springs
Not sure they are what they claim to be with only 3 coils, certainly don't look like H/W springs which have 4 coils. Look at the picture on the parts home page and you'll spot several differences. 016962/3
- Pharisee
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Re: Hairpin valve springs
They don't claim to be heavyweight springs.... The vendor says they are for the 7R /G50 OHC racing engines. Having had a closer look, they are significantly different to the springs fitted to the touring bikes and I suspect that they are what the vendor claims.ajscomboman wrote:Not sure they are what they claim to be with only 3 coils, certainly don't look like H/W springs which have 4 coils. Look at the picture on the parts home page and you'll spot several differences. 016962/3
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- Rob Harknett
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Re: Hairpin valve springs
There were several different types of prewar AJS and Matchless hair pin springs. Those I have come across have long prongs. So I guess they are not prewar.
Note the springs in question have the prongs at equal distance between both. I am sure the heavy weights had prongs narrower one side, to go between the prongs the other side.
Note the springs in question have the prongs at equal distance between both. I am sure the heavy weights had prongs narrower one side, to go between the prongs the other side.
- Pharisee
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Re: Hairpin valve springs
That's one of the significant differences...Rob Harknett wrote: Note the springs in question have the prongs at equal distance between both. I am sure the heavy weights had prongs narrower one side, to go between the prongs the other side.
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