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Speed,Combat,Scale,Racing => Speed Talk => Topic started by: Lyle Spiegel on August 15, 2023, 05:00:52 PM
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If I can find a few parts Im hoping to rebuild my 29X RI RE. First priority is finding new a con rod. Engine was built by Nick Shur. I have piston/ liner. Chromed liner in good shape, unsure about piston fit into the sleeve. Nick replaced stock Al piston with high Silicon "Vanasil". unlikely I can find a piston, so might need to find resource to rechrome the liner and then rehone . I think chrome work originally done by Gene Hempel. Final fitting by Bob Oge. I might also need to find new cylinder head if I cant find the one Nick modified to accept a button. ( I have the button). last item I would need to find is a pipe. Originally engine was setup for "Rossi B" pipe.
Any help or guidance appreciated.
Lyle
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I think the 29 has the same rod as the c35, g21-35, I might have an extra one. I also have a NIB Tiger 29 ABC piston and sleeve that is normal timed. I have some other parts too maybe a head clamp, rear rotor ect I'd have to dig them out. Nick and the NY guys melted down Chevy Vega blocks and poured into a pipe to make hi Si bar stock. I have one of those bars if you find someone to make a piston for you (not me).
MM 8)
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http://sceptreflight.com/Model%20Engine%20Tests/ST%20X.29.html
Says 5 mm wrist pin , 6 mm crank pin . Which is pretty much ' V ' 60 ( stunt ) sizes .
Do you have a knackered rod , for the length ?
Ive just measured a G45 conrod , 5 mm & 6 mm . AND the ' COMO ' , which is the same .
As the Como is a development of the G40 series , as is the X 40 ( & 45 & 29 ! ) it looks like
ANY late G 40/45/51 ( & 49 ) rod'd go in .
This is where it started , (https://external-content.duckduckgo.com/iu/?u=http%3A%2F%2F2.bp.blogspot.com%2F-8Bp4ZHW_kvs%2FT1TCY0zsu_I%2FAAAAAAAAEgM%2FnUge6OSZDBo%2Fs1600%2F-1%2Bcopy.jpg&f=1&nofb=1&ipt=e9a38b1567603a0618924a079559cf5927c4b4fe323966a4b982efacc73d27ab&ipo=images)
and this is the ' schneurle ' . (https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Ftse2.mm.bing.net%2Fth%3Fid%3DOIP.ATJ5z3ciuNaBD714vr2qXAHaHa%26pid%3DApi&f=1&ipt=fb3caefb2d4b8b600972c99d8e211a41dbc0c1d3784a41da5d516e1e9999dc03&ipo=images)
21 series theres long & short rods . ( dual and single ring piston ) you got that with the 1960s G 40 / 45 / 51 too . So theres ones that go in , and theres ones the right length , that go in . >:(
HooKay ; gotta Como 40 rod ( G 40 ) which is 34 mm center to center , as is the OS SF 46 rod , which is a 25305002 OS rod , for a " 46 AX , 40 - 46 FX . FXI .SF . VF Connecting Rod "
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Theyre6 mm along the crank pin - Como ( Super Tigre )- 5.95 . and the wrist pin ( both ). Whereas the OS rods 8 mm along the wrist pin . Gotta File . VD~ as the OS rods a high output one , there ya go .
S Tigre's like OS . a rod of many colours , Er , FITS . Likely ANY ST Rod from the original G series and Late schneurle G-40 to 51 will be interchangeable . Some rear intake rods ARNT ' round ' at the disc interface ,
on the 21 series - 21/40 RV frinstance .
I accidently put the S T rod in the SF last night . CLANG . the outer big ends a gnats dik broader . SO the OS rod'll clear nosweat . But maybe youd avta narrow the little end as the lands in the piston might be less than 8 mm apart .
Other'n that theyre identical bores and length between centers . A VF .46 rod , in fact . see Part No. above .
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Lyle,
Check your messages.
Dave
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Lyle,
A local guy here has some NIP parts that, according to the ST catalog, fit the 29X, including connecting rods. I sent you a private message with his phone number so you can discuss what you need and see what he's got.
Dave
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If I can find a few parts Im hoping to rebuild my 29X RI RE. First priority is finding new a con rod. Engine was built by Nick Shur. I have piston/ liner. Chromed liner in good shape, unsure about piston fit into the sleeve. Nick replaced stock Al piston with high Silicon "Vanasil". unlikely I can find a piston, so might need to find resource to rechrome the liner and then rehone . I think chrome work originally done by Gene Hempel. Final fitting by Bob Oge. I might also need to find new cylinder head if I cant find the one Nick modified to accept a button. ( I have the button). last item I would need to find is a pipe. Originally engine was setup for "Rossi B" pipe.
Any help or guidance appreciated.
Lyle
Patrick Hempel in Texas obtained A LOT of S/T X29 parts from the late Dave Laymen, he likely can help you out.
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i will contact Patrick. If I recall, Dave Layman was involved with Nick Shur engine builds for the B record at Westover , Mass.