help finding rings
Elder User
Joined: Apr 2004
Posts: 970
Likes: 3
Years ago it was not uncommon to bore engines .040. A lot of things were done when
dollars and resources were tight. Semi fiinshed pistons were ground in local shops to fit
what ever, the same with cranks and semi finished inserts. Todays labor cost would
make this impractical. The only thing I found odd was the extra .005. Perhaps it
was a mistake on one hole and they went on and made them all that way, or the pistons
were at hand as they and not correct. Sad part is you have the mess of finding rings.
dollars and resources were tight. Semi fiinshed pistons were ground in local shops to fit
what ever, the same with cranks and semi finished inserts. Todays labor cost would
make this impractical. The only thing I found odd was the extra .005. Perhaps it
was a mistake on one hole and they went on and made them all that way, or the pistons
were at hand as they and not correct. Sad part is you have the mess of finding rings.
Thread Starter
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Senior User
Joined: Jul 2004
Posts: 363
Likes: 0
From: New Zealand
i'm trying to find some thing that will work so been looking at various rings but most of the japenese stuff that is similar uses a 1.5mm thin ring
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Lead Driver
Joined: Oct 1999
Posts: 6,768
Likes: 547
From: Kalispell, MT
You might try Red's Headers online. They're very helpful folks who actually work with and run flatheads. If Red can't supply the rings he'll know who does I bet.
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Elder User
Joined: Apr 2004
Posts: 970
Likes: 3
Since it is only .005 you may get away with a .040 set. Std rings take care of wear and
taper up to almost .010, and each size above it would handle up the .010 above it. We don,t see cylinders tapered like that any more, as a matter of fact you have to think were you have your ridge reamer stored the wear just isn't there . That was one of the reasons I suggested Hastings they may have a semi fitted ring which you would have
to file the end gaps to the cylinder.
taper up to almost .010, and each size above it would handle up the .010 above it. We don,t see cylinders tapered like that any more, as a matter of fact you have to think were you have your ridge reamer stored the wear just isn't there . That was one of the reasons I suggested Hastings they may have a semi fitted ring which you would have
to file the end gaps to the cylinder.