an 807 mated to a S2 4 speed trans

[BERNIEHUMBER]

HI:
I read the section on attaching a 807 to a S2 trans(The P.F. Engineering sheet) and wondered if those of you that have done this what procedure did you follow?
They mention that the 807 flywheel is preferred to the original but then the following mods to accomplish this were somewhat convoluted.
I have both flywheels and clutch assemblies but the part about replacing the bell housing sounds necessary only if one changes the throw out bearing.
Enough twists and turns to ask the group.
Thanks

[SwiftDB4]

It's been a long time since I had an 807G mated to a 336, but I think the only thing was relieving the inside of the bellhousing a minimal amount to clear the bigger flywheel.

[jbcollier]

Yup, open up the existing bell housing so both the flywheel and clutch clear.

[BERNIEHUMBER]

HI:
Thanks for the get backs.
So keep the 807 flywheel which mates to the original clutch pressure plate /through out bearing assembly.
OR
Do I keep the 807 flywheel and 807 clutch pressure plate assembly but use the original through out bearing assembly? 
When I am doing the transplant I want as few surprises as possible.
Trying to do the ounce of foreknowledge pound of cure thing.
Thanks again
Bernie

[jbcollier]

The easiest and simplest way is to fit the stock Europa flywheel and clutch assembly.  Absolutely no mods required.  As long as the 807 is not heavily massaged, this should be just fine.

[BERNIEHUMBER]

HI John:
Yes for the simplest of solutions that would work.
I would like to keep the 807 flywheel(in amazing shape) and go from there(grinding extra clearance is not too much of an issue).
So really the question becomes :does the rest of the original S2 drive(clutch plate/release bearing assembly) fit on to the 807 flywheel?

SwiftDB4:Thinking back when you did the transplant with the larger 807 Flywheel did you do anything else to the remaining S2 clutch components?

Thanks
Bernie

[jbcollier]

The Europa comes stock with a 200mm flywheel and a special HD clutch.  The other option is the 215mm flywheel which takes a larger diameter clutch.  The stock Renault 215mm clutch works fine with the Europa.  I have not seen a wedge head engine with a 215 flywheel.  I have seen 807s with both the 200 and 215 flywheels.  The only reason to go with a 215 flywheel is for the larger clutch.

I can’t say if the stock Europa release bearing will work with the 215 clutch.

[SwiftDB4]

You're talking almost 50 years ago. I bought the S1 with the 807G already installed, but as I recall the engine came with the 215mm flywheel and larger clutch pressure plate. I think the throwout bearing was the S1/S2 standard one, but not absolutely certain. Just bolt it up and see before installing in car.

[dakazman]

   Not to get to far off your donors ,but can a r15/r17 or Feugo clutch and pressure plate work ?
Dakazman

[BERNIEHUMBER]

HI:
Thanks for the get backs!
SwiftDB4 I know what you mean about 50 years ago.
I bought my S2 when I was 22 now 70+ so my memory of its make up is fading.
I rebuilt the 1470 in the 80's and added a Hermes kit (still has it).
The car is stored in a ventilated bag about 1.5 hours from my house so I want to be as fully aware of what to expect.
The engine(now residing in my work shop) is rebuilt and it now comes down to the little things that can ruin your day.
It sounds like just bolting the 807 crank to the existing S2 flywheel and using the existing clutch configuration is the simplest answer, all things considered.

[jbcollier]

Dakazman:  My donor car was 73 R17G.  It came with a 807-13 engine and a 200mm clutch.  Early versions came with a 215mm clutch.  I dug up a 215mm flywheel and clutch for mine.

[GavinT]

When I changed from the original 1470cc (697) engine I used 807 (R-16TS) parts throughout which included the 807 flywheel, a new clutch kit & release bearing.

The original 336 bell housing worked fine with no modifications.
I now can't recall what clutch was used but it all went together with the later release bearing and without mods.

The original Lotus 697 uses a pressure plate with a pad/ring on the fingers. The release bearing for those is different to the 807 one that applies pressure directly to the fingers. I wonder if there are height differences?

Bear on mind that my conversion used parts from Australian built cars as we had a Renault factory (well, more of an assembly line, really) here at the time and I've noticed some subtle differences from cars sold in other markets. F'rinstance, while generally Oz cars were Euro spec., our Govt. was incentivising and mandating local component content so we got Bosch distributors, starter motors etc.

[jbcollier]

The injected engines used Bosch distributors as they were part of the injection system (D-Jetronic).

[BERNIEHUMBER]

HI:
Since I have the 807 flywheel/clutch plate/pressure plate and the existing S2 combo I can make some onsite decisions but keeping the original S2 clutch combo and bolting it to the 807 crank seems like the easiest alternative.

A secondary issue is the 807 came with an oil cooler.
I pressure tested the coil and cleaned it down.
It looks good to go it but will be an issue on where to mount it.
On the rear cross strut passenger side might work from memory.
I would like to keep the trunk or the job would be easier.
Bernie

[jbcollier]

This is one location in the back that is proven to work:

https://www.prevanders.net/europa/oilsystem.html