The engine was rebuilt 5400 miles ago with beams on the rods polished, balanced, magnafluxed, high volume oil pump etc.
It was taken off the road for low compression, which turned out to be a burnt valve. I refreshed it with new rings, coated the pistons, new gaskets, seals, valves etc. and will be upgrading to a more modern turbo sytem from the Rube Goldberg original design as the turbo had no compressor side seal and could not handle vacuum....
TurboFource said:
Filing this away for future use. Clamping pipes for welding is a PITA.
I think this forum is home to about half the Europas ever built. The wood pipe clamping system is brilliant.
Hoped to have valve clearances set today but I ran into an issue on the
intake side. My new valves are .020” longer than the ones they replaced.
This means I would have to use shims at the low end of the commonly available
range (.060”), which would make future adjustments difficult. The shims previously installed were in the
.080 - .082” range confirming the length issue. I removed one new valve and compared the length
to 2 different sets of used valves. I used some .045” washers as shims to determine where I am at…..
New valves 3.917”
Removed valves 2.897”
Other used set 3.902”
There is plenty of clearance between shim and retainer and keepers so I will see if the local machine shop can grind the stems to the original length.
This kind of stuff eats the time!
bigeyedfish said:I think this forum is home to about half the Europas NEVER built. The wood pipe clamping system is brilliant.
Fixed it for you!
Things I learned today... Twin Stromberg spec Lotus Twin Cams have the split manifold cast in. For some reason I assumed they were individual runner head with a split manifold.
All the Twin Cam heads do...simplify...then add lightness!
Wow dude. The first pictures made me just cringe. And then PROGRESS! Keep it up!
TurboFource said:All the Twin Cam heads do...simplify...then add lightness!
Yeah, I assumed there was an "adaptor" manifold that went DCOE to Stromberg. Makes a carb upgrade a challenge!
There will be a turbo between my carb and the head!
TurboFource said:There will be a turbo between my carb and the head!
Turbo post carb on the intake side? I'm assuming no intercooler and using the fuel vapors to cool the compressed charge? Or am I way off?
I've only played with one turbo carb engine and it was inlet -> turbo -> intercooler -> carb -> intake manifold.
Very cool build! I'll be following and learning
Old school draw through turbo...I will update it some but want to keep the spirit of the 1975 build.
You are not far off!
Filling a couple of tricks for future use too.
Now if you'll excuse me, I have to go read a 39 page thread on this :D
Carb...before and after...
Wood is good...
Holding small parts when you need a third hand...
Drains on Koni's
Made my own stickers...printed them on regular paper...sprayed both sides with clear...cut them out and glued them on and sprayed clear again...
Had a couple of hours this morning so I put the head on the block with missing valves (waiting to hear back from vendor) so I could start on new turbo system intake....
Yes I know the valve cover looks terrible.....
Learned a lesson today - a $45 HF 9 amp 1/2" drill has enough power to throw 155lbs of "Me" around the garage when a holesaw breaks through a piece of 3/16" plate and catches....yes it left a mark. The setup on the second hole was less painful!
TurboFource said:
Those turned out great!
In Europe Volvo had a blow through Stromberg CD-175 set up.
Is there anyone on this site in Europe that might have the turbo carb and cool cast hat/bonnet they want to part with?
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