Cylinder hear valve stem seals
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Post by: gino1 » Thu Sep 06, 2018 1:50 pm
just recently acquired a twin cam cylinder head in Italy and discovered when stripping it down that it had some valve stem seals fitted and that the guides had been reworked to fit them.
The head is race prepared and on 45's.
It obvioulsy worked well and wanted to share this with you to hear if anyone else has used them ?
Gino
Milano
italy
The head is race prepared and on 45's.
It obvioulsy worked well and wanted to share this with you to hear if anyone else has used them ?
Gino
Milano
italy
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1964 Elan S2 Roadster
1965 Elan S2 Roadster
1965 Elan S3 Coupe
1968 Elan S4 Coupe
1969 Elan +2
1968 Lotus Seven S3
1982 Lotus Esprit S3
1961 Ford Anglia
2000 Lotus Elise Motorsport-56
1965 Elan S2 Roadster
1965 Elan S3 Coupe
1968 Elan S4 Coupe
1969 Elan +2
1968 Lotus Seven S3
1982 Lotus Esprit S3
1961 Ford Anglia
2000 Lotus Elise Motorsport-56
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Post by: types26/36 » Thu Sep 06, 2018 5:07 pm
Yes Gino, I have done it, have a read of this thread.
lotus-twincam-f39/worn-valve-guides-t40171.html
lotus-twincam-f39/worn-valve-guides-t40171.html
Brian
64 S2 Roadster
72 Sprint FHC
64 S2 Roadster
72 Sprint FHC
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Post by: gus » Fri Sep 07, 2018 12:33 am
the valve guides are so short in the twink most people do not want to remove any length at all to fit a seal
If bronze guides are put in the tight end of normal you don't lose much that way anyway, at least until the whole thing needs doing again anyway
If bronze guides are put in the tight end of normal you don't lose much that way anyway, at least until the whole thing needs doing again anyway
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Post by: Famous Frank » Sat Nov 10, 2018 4:49 am
Hello Gino!!!
My last two Twincams have valve seals. My engine machinist is Barry Sales of PHP Race Engines in Wauconda, Illinois. He has been installing them for a number of years on all the Twincams he builds.
Frank
My last two Twincams have valve seals. My engine machinist is Barry Sales of PHP Race Engines in Wauconda, Illinois. He has been installing them for a number of years on all the Twincams he builds.
Frank
Famous Frank
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Post by: Famous Frank » Sat Nov 10, 2018 4:52 am
My latest twincam on the dyno. 158 hp, 138 lb. ft.
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Famous Frank
67 Elan Coupe
66 Elan S2 SE
65 Elan S2
65 Elan 26R
69 S2 Europa
06 Elise
67 Barracuda
67 Elan Coupe
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06 Elise
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