Howdy all. I have just acquired a very low mileage military Triumph motorcycle from the early 50s. I was wondering if there is a good lead substitute additive that I can use on this old engine?
Lead Substitute
- Thread starter DC_Stewart
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TetraBOOST E-Guard is the gold standard, not cheap and from the UK , Penrite valve shield is good. Redline offers one but I have never used it but the company has a good rep so I think its worth a look.
BTW, nice pre unit Trumpet, I had a 62. Do not let anyone talk you into doing the seats, I had a few buggered almost irreplaceable heads when they tried, one on a HD and the other a BSA lightning.
BTW, nice pre unit Trumpet, I had a 62. Do not let anyone talk you into doing the seats, I had a few buggered almost irreplaceable heads when they tried, one on a HD and the other a BSA lightning.
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Redline is good. There was an extensive series of tests done a while ago by one of the UK classic car organizations. They tested several additives and, of the ones available in the US (not sure about Canada), Redline was the best. There were several that did very well but, because they contain phosphorus (if I remember correctly), they cannot be sold here. Let me see if I can find the link.
Pic of the bike please and congrats!
Pic of the bike please and congrats!
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Here is a link to a summary of the study from a Vincent owners group. Cant find the entire study though...do a search, it is a good read and must still be out there somewhere.
VOC lead substitutes
VOC lead substitutes
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Originally Posted by wings&wheels
Pic of the bike please and congrats!
Pic of the bike please and congrats!
Great bike, and pickup!
That is a great bike, and a fantastic Caddy.
I always wanted one of those (both an old Triumph and a VW Caddy).
I always wanted one of those (both an old Triumph and a VW Caddy).
I have been through this for the last 25 years with British cars.
Often I have found the use of Lead substiute can cause more problems than not using it, with deposits causing pre ignition.
It seem when there is a problem it manifests after use involving prolonged use under load at high rpm.
For the last 15 years I have resolved not to use anything, but monitor for any VSR (there has not been any)
Often I have found the use of Lead substiute can cause more problems than not using it, with deposits causing pre ignition.
It seem when there is a problem it manifests after use involving prolonged use under load at high rpm.
For the last 15 years I have resolved not to use anything, but monitor for any VSR (there has not been any)
Forgive my ignorance, but that motor looks like a 2-cycle. Maybe it's a flathead 4-cycle?
Originally Posted by DGXR
Forgive my ignorance, but that motor looks like a 2-cycle. Maybe it's a flathead 4-cycle?
It is, indeed, a sidevalve (flathead) 500 cc twin. It's got about 8 to 1 compression and 15 horsepower.
Forgive my ignorance, but that motor looks like a 2-cycle. Maybe it's a flathead 4-cycle?
It is, indeed, a sidevalve (flathead) 500 cc twin. It's got about 8 to 1 compression and 15 horsepower.
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