1970 s2 0453R Reassembly

[dakazman]

  Thanks guys 😀
  It’s been really exciting to see all the parts becoming a car.
   My path keeps changing but it’s still baby steps. Choosing which job to do without having to re-do is the goal. My next big job will be pulling the gearbox out and replacing the clutch and pressure plate with a kit from RD being delivered as we speak .
  I should make a list but I’m not a list guy , I just do the jobs in my head at night.🥴🥱 it’s more like what can I finish or what part will give me more room to work.
Dakazman
  Ps : I was watching the first video last night. Lol 😂
 

 

[dakazman]

   Thanks BDA for the video's,  I got to watch them and then went to work outside and tested. a little longer run than before but not getting into Idle.
   Then I watched this segment on idle and progression. 

https://youtu.be/vfG9aB5ZNpM?si=B2CvjFv9_yiTAvCU

Can’t wait to watch the rest of this segment.
 
     I also am glad I document my build and from way back in March 2021 found my notes where some of my answers on the rebuild of the 40 were talked about. 
 DCOE.
              http://www.lotuseuropa.org/LotusForum/index.php?topic=2058.1380
 
   I'm guessing I'm getting way to much fuel and into the progression phase, going on from there before checking float levels. since I cant get Idle.
  I managed to get a good distributor position for now, and some other items fixed. Added the bonnet to the car, next maybe the windscreen.
  dakazman
 
 

[BDA]

D3SShooter is pretty good. He has a more in-depth series on Weber DCOEs starting here (https://www.youtube.com/watch?v=AHGSZtVhbx0). Basically, he tells you some of what is in the Weber Tuning Manual (https://www.lainefamily.com/images/WeberTuningManual.pdf). From what I can tell, THE authority on Webers is Keith Franck at his groups.io group (https://vintagetechnologygarage.groups.io/g/sidedraft/topics). He has designed his own jets and emulsion tubes - that's the level of knowledge he has! I've been tempted to get his emulsion tubes but for now, it runs good enough and my interest is not squeezing the last hp out of the motor. Joining his group is a good way to get some help straightening out your carbs.

I included those two links earlier because you have to set the carbs up correctly to be able to get anywhere. The position of the butterflies to the transition holes is important as is the fuel level. Luckily, you found that video where D3SShooter explained the other things that are very important to have squared away before starting to look at your carbs!

Good luck!

[dakazman]

   Thanks again BDA,
  Now that I'm here and have a semi-operational vehicle I'm not blindly buying stuff. I like when I can see a problem and then fix it. I did take yours and JB advice but wish I remembered what I purchased back then. After reading my post ,I need to find out.   I'm really ,really glad I'm at this point.
  I'm also thinking about just buying a china model off ebay.  luckily I have other jobs to do before actually pulling that trigger.
  Step by step....
Dakazman   

[jbcollier]

Not idling?

Do you have Italian made Webers or Spanish?

What is the exact carb number 40DCO?xxx ?

[dakazman]

  Made in Italy ,
It’s pictured here JB . It’s been awhile since I explored it.  You gave me the website to buy parts way back in 3/2021.
http://www.lotuseuropa.org/LotusForum/index.php?topic=2058.1380
Dakazman
  Looks like Dcoe 8

[BDA]

I was tempted to get new Chinese Webers but thought better of it given spotty QC with some Chinese products and not knowing if they would behave the same way as a "real" Weber. On the other hand, Pierce Manifolds, which sells Webers, jets, accessories, etc. is selling FAJS DCOE copies. I don't know anything about them but the fact that Pierce Manifolds sells them lends a certain amount of credibility to them for me.

edit: on the other hand, Pierce Manifolds could be just trying to make a buck (not that they shouldn't try to do that). The folks at this Alfa forum had a dim view of FAJS carbs (https://www.alfabb.com/threads/anyone-know-these-carbs.537098/). In spite of Pierce Manifold's selling them, it seems the safer option would be to get new Spanish made Webers instead.

[dakazman]

  JB question.
 Shoud I be able to obtain idle without a mechanical advance on distributor?

  I just re-read it in my thread .
http://www.lotuseuropa.org/LotusForum/index.php?topic=2058.1380
Dakazman

[jbcollier]

Yes, it will idle with fixed timing.  It won’t accelerate nor run at high speed very well with timing set for idle.  I’m confused though.  Why, and how, would you run with no mechanical advance?!?

Looking at your old notes, 60f6 idle jets are too large.

[dakazman]

   JB,
I was taking the easy route and just going to hook up the vacuum advance from distributor to a blocked off hole in the intake manifold. mechanical advance is still my goal, but need to buy the parts ( springs and weights). or go with the pertronics distributor.  That was my thinking anyway but now I'm here and its still not decided. 
  Then, talking about dropping the ball, I never ordered the 115 tips or the proper jets for this engine. I just ordered the throttle bearings and the plate BDA mentioned and the fuel inlet fitting.
   This is basically where I am and need some further directions on how to proceed. 
  I did not do a compression check or vacuum check yet also, as stated in the videos. then also going back to what cam I put in. then I need to readjust the valve clearance and torque down the valve cover a bit more to stop this Exxon Valdeves oil leak.   
     I have the book on dells and now frantically trying to get time to read and watch videos.
Dakazman

[jbcollier]

The more you explain, the more confused I get.

Dellortos?  I thought you had Webers?

You need a working distributor, full stop.  It won't run right with a fixed mechanical advance.

It would be very helpful if you could explain exactly what your engine is (wedge/crossflow) and exactly what it has (carbs/exhaust/etc).

[dakazman]

  I have A Weber dcoe 8 40mm .
  I was referring to the book that was suggested by someone to read . The manual for early type weber carbs shows the jets and a stock number but not the f designation or 115 size . That is why I didn’t buy  the jets.
 
    My 821-30 has a slightly modified cam, stock otherwise. I’ll research the cam cut I posted years ago.
  I’ll just buy the fitting for the vacuum hose but since it comes off when setting timing it doesn’t matter to get a good idle.

I’m up to part 2 and 3: here

https://240260280.com/Tech/Carbs/Weber/docs/Weber/WeberTuning%20Manual%201985.pdf


I found the cam card here . See pic

 Dakazman
   
   
 

[jbcollier]

That’s helpful as at times you have referred to multiple carbs and I was beginning to think you had a crossflow.  Do a search as there are threads on jetting a single DCOE for a wedge engine.

I’m having some trouble believing that cam chart.  215 degrees of duration?  That’s like a cam for a tractor or a lawnmower.  I have a 280 degree cam in crossflow powered Seven for example.  It’s a bit lumpy at idle. A stock Ford Kent 1600GT engine has a 272 degree cam.

[jbcollier]

On that single carb set-up, they usually run a 45DCOE.  A 40DCOE might be a bit restrictive.  Here's a thread on jetting:

http://www.lotuseuropa.org/LotusForum/index.php?topic=2919.msg28182#msg28182

[jbcollier]

You can see why I said your 60f6 idle jets were way too large.