T/C Valve cover identification
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Does anyone recognize this valve cover? It has a cast in boss for fuel injection.
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s4elan - First Gear
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- Location: Oregon
"a cast in boss for fuel injection"?
John
John
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john.p.clegg - Coveted Fifth Gear
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It looks a lot like the Novamotor cover, except that in that one the space between the cams (ie over the plugs) is also covered, with similar ribbing. I don't know if there's any connection.
Paddy
Paddy
1963 Elan S1
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paddy - Coveted Fifth Gear
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Sorry, no identification tips but I think it could be someone's own solution to cure leaky Cam Covers.
Those longitudinal Ribs together with added stiffness across the clamping Nuts will have increased the overall stiffness of that Cover & most interestingly the use of additional longer Studs & Nut locations on all the Cam Bearing locations will also help to spread the load more evenly across the Cover Gasket.
Even the use of Capped nuts (as shown) will help in stopping Oil leaks along the Stud Threads.
Needless to say it's been designed mainly for competition use on a dry sumped Engine.
Cheers
John
Those longitudinal Ribs together with added stiffness across the clamping Nuts will have increased the overall stiffness of that Cover & most interestingly the use of additional longer Studs & Nut locations on all the Cam Bearing locations will also help to spread the load more evenly across the Cover Gasket.
Even the use of Capped nuts (as shown) will help in stopping Oil leaks along the Stud Threads.
Needless to say it's been designed mainly for competition use on a dry sumped Engine.
Cheers
John
Beware of the Illuminati
Editor: On Sunday morning, February 8th 2015, Derek "John" Pelly AKA GrumpyBodger passed away genuinely peacefully at Weston Hospicecare, Weston Super Mare. He will be missed.
Editor: On Sunday morning, February 8th 2015, Derek "John" Pelly AKA GrumpyBodger passed away genuinely peacefully at Weston Hospicecare, Weston Super Mare. He will be missed.
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GrUmPyBoDgEr - Coveted Fifth Gear
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looks very much like an HRE cam cover I saw on a an inject twin-cam, minus the HRE over the cams though....
G
G
- cabc26b
- Fourth Gear
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cabc26b wrote:looks very much like an HRE cam cover I saw on a an inject twin-cam, minus the HRE over the cams though....
G
You may be correct as the sump pan and fuel pump cover plate both have HRE cast into them which I believe is from Hutchinson Race Engines.
Pete
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s4elan - First Gear
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- Location: Oregon
john.p.clegg wrote:"a cast in boss for fuel injection"?
John,
The tab cast into the inlet side of the cover between cylinders 1 and 2 could have been use to mount a Lucas or Tecalmit mechanical fuel injection pump.
Russ Newton
Elan +2S (1971)
Elite S2 (1962)
Elan +2S (1971)
Elite S2 (1962)
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CBUEB1771 - Coveted Fifth Gear
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These cam covers were made by Hutchison Racing Engines. I emailed Gus Hutchison and he told me he made about 100 sets. A set consisted of the cam cover, cast dry sump with fins similar to the cam cover, a mechanical fuel pump blanking plate and a 4 port dry sump pump.
- manykl
- New-tral
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Thanks for the update!
Greg Z
45/0243K Sprint
45/7286 S3 SE DHC
45/0243K Sprint
45/7286 S3 SE DHC
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gjz30075 - Coveted Fifth Gear
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What are the chances of finding one of these? I have been happy with my original 1965 valve cover until I saw this-I really like the idea of the rigidity and the extra hold down studs-the original has too few.
'65 S2 4844
- Davidb
- Fourth Gear
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- Location: Vancouver, Canada
Chances of finding one of the HRE valve covers are probably pretty good. I have two originals which I found in the last couple of years. I also have an original HRE head. If anyone has any of the original HRE Lotus Twincam engine internals I would very interested in acquiring these also.
1963 Unicorn
1964 S1
1965 S2
1967 S3 SE DHC
Frankentwincam 26R
Seven S2 A
Seven S2 F
1964 S1
1965 S2
1967 S3 SE DHC
Frankentwincam 26R
Seven S2 A
Seven S2 F
- knockoffnut
- Third Gear
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- Location: the great white north
CBUEB1771 wrote:john.p.clegg wrote:"a cast in boss for fuel injection"?
John,
The tab cast into the inlet side of the cover between cylinders 1 and 2 could have been use to mount a Lucas or Tecalmit mechanical fuel injection pump.
Picture below shows the fuel injection pump mounted on a twin cam. It does look as if it would line up with the boss.
https://lotuselan.net/lel/29438/0/PHK%20Engine%20Bay%20zoom.jpg
68 Elan S3 HSCC Roadsports spec
71 Elan Sprint (still being restored)
32 Standard 12
Various modern stuff
71 Elan Sprint (still being restored)
32 Standard 12
Various modern stuff
- Andy8421
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knockoffnut wrote:Chances of finding one of the HRE valve covers are probably pretty good. I have two originals which I found in the last couple of years. I also have an original HRE head. If anyone has any of the original HRE Lotus Twincam engine internals I would very interested in acquiring these also.
Interesting to read. Is there anything different externally on an HRE head ?
Would you be willing to share what was done to the head internally? I'm sure there are plenty of people on here it will interest!
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promotor - Fourth Gear
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Hi Promotor, I apologize I have been off of this website for ages. During Lockdown I was learning to do gasflux welding working of a 7/20. My HRE head has some beautifully executed porting and polishing. I have quite a few heads which were ported and polished for racing, but the HRE head is by far the best executed porting work I have seen on a twincam. Externally there are no modifications or differences.
1963 Unicorn
1964 S1
1965 S2
1967 S3 SE DHC
Frankentwincam 26R
Seven S2 A
Seven S2 F
1964 S1
1965 S2
1967 S3 SE DHC
Frankentwincam 26R
Seven S2 A
Seven S2 F
- knockoffnut
- Third Gear
- Posts: 227
- Joined: 02 Sep 2011
- Location: the great white north
knockoffnut wrote:Hi Promotor, I apologize I have been off of this website for ages. During Lockdown I was learning to do gasflux welding working of a 7/20. My HRE head has some beautifully executed porting and polishing. I have quite a few heads which were ported and polished for racing, but the HRE head is by far the best executed porting work I have seen on a twincam. Externally there are no modifications or differences.
Greetings Knockoffnut!
By chance, were you looking to sell any of the HRE bits? We are tentatively looking at purchasing a Formula B car that Gus raced in 1971 and it would be lovely to make up a HRE Twinny for it.
Let me know your thoughts.
Jacques Dresang
kmvintage.net
1958 Thames 800 / Consul 1703cc
1962 Lotus Seven #SB1290 / Pre-Crossflow 1498cc
1973 Elden PH10B / Kent 1598cc
1977 AAR Eagle DGF / Kent 1598cc
1962 Lotus Seven #SB1290 / Pre-Crossflow 1498cc
1973 Elden PH10B / Kent 1598cc
1977 AAR Eagle DGF / Kent 1598cc
- Haase00
- New-tral
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