Register now to get rid of these ads!

Customs Carb wedge plate?

Discussion in 'The Hokey Ass Message Board' started by amazon69, Jan 3, 2018.

  1. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    Evening.
    I have got a 360LA Mopar in my garage and I'm trying to work out the angles etc to put it in the car. ('59 Bristol 406) I'll try not to make this another post about pinion angles...
    To have the rear pinion and the crank parallel with a 2-3 degree angle on the prop means that the carb/inlet surface is off level by about 3-5 degrees. Looking about it seems that the easiest answer to this is a wedge plate, such as this one.

    Is there any more I need to know here? Is there owt wrong with a wedge plate to answer this? Maybe some carbs don't even care, I dunno. Doing it this way gives me all the right angles, but doesn't give me a block/tranny pointing down at the rear a bit for safety. If I could lift the diff pinion up a few degrees I would, but the rear axle has torsion bars and a watts linkage which means it's staying where it is.

    I suppose another answer is to inject the motor, but I've rebuilt it and need it to start up straight away for running in. I'm not confident i could get that to happen with injection.

    Cheers for any thoughts. Apologies if pinion angles wind you up.

    Dave
     
    fbcoach68 and chryslerfan55 like this.
  2. the crank has a 2-3 angle with the trans down and the carb angle is off 3-5 degrees?
    marine intake?
    either war the spacer wont hurt if it corrects your carb angle
    I have also seen intakes milled
     
    djr041060 and chryslerfan55 like this.
  3. oldolds
    Joined: Oct 18, 2010
    Posts: 3,407

    oldolds
    Member

    I doubt you will need an angle plate. Your car usually runs fine going up and down hills greater than 5 degrees.
     
  4. Sure would be nice to consider everyone on this site by FILLING OUT YOUR PROFILE PAGE,,
    Your asking for our help,but don't want to tell us who the hell you are
     

  5. you can also adjust floats
     
    chryslerfan55 likes this.
  6. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    If the crank is level, which it needs to be so as to be parallel with, and slightly above, the rear pinion, the carb/intake is off by about 4 degrees. The rear pinion is level with the road/chassis. Here's a pic of the intake:
    manifold.jpg
     
    chryslerfan55 likes this.
  7. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    Alright bud, thought I had. Will fill it out some more for you.
     
    chryslerfan55 likes this.
  8. Mike VV
    Joined: Sep 28, 2010
    Posts: 3,029

    Mike VV
    Member
    from SoCal

    "rear" pinion...is this a four wheel drive ?

    Mike
     
    chryslerfan55 likes this.
  9. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    Ha. No.
     
    chryslerfan55 likes this.
  10. crank does not have to be level
    they are generally designed (in cars) to have a 2-3 downward angle thats why most carb flanges are about 3 degrees off of crank centerline
    this makes for a level carb while the engine has the slight angle downward at the trans
     
    amazon69 likes this.
  11. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    Thanks. I get that, but for the angles to be right the crank needs to be level. If I have the carb level and the crank centreline down then crank and pinion are not parallel, cos I can't change pinion angle.
     
    chryslerfan55 likes this.
  12. 11-driveshaft-alignment.jpg

    why is the pinion not adjustable?
     
  13. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    Because the axle has torsion bars and a Watts linkage. I don't think I can change the angle because of that. I can take some pics if needs be. I thought a wedge plate would be 100 times easier that reworking all that, even if it is possible.
     
    chryslerfan55 likes this.
  14. LM14
    Joined: Dec 18, 2009
    Posts: 1,936

    LM14
    Member Emeritus
    from Iowa

    So the at the rearend is set up it has zero degree pinion angle at ride height?
    SPark
     
  15. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    yes
     
    chryslerfan55 likes this.
  16. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    No idea. That's how it is from the factory. I'm not putting a stock engine in there, maybe it made sense with the original set up, dunno.
     
  17. WHY??? because none of his cars are HAMB material
     
  18. We'll if your not gonna correct the rear I guess you will have to make up for it with the engine
    I always weld my pinion angle last after all angles are set and engine is mounted and at ride height.
     
    joel likes this.
  19. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    Tell me about it. I appreciate it, thanks.
     
  20. Being a teacher makes it hard not to help. It's one of my many faults.
     
  21. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    Hey, that was short and sweet. Even my Mopar motor doesn't qualify me to be a member. Sad to not be able to learn from here. Enjoy your cars.
     
  22. The mopar choice actually helps
    It takes a little more ingenuity and cash
    Good luck
    I let the moderators police this site
     
    dan31, mgtstumpy and Terrible80 like this.
  23. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,214

    mgtstumpy
    Member

    [​IMG]

    This is a 1959 Bristol 406 designed by Bristol and Zigato. Whilst not a traditional US based car, our English friends like us Ozzies and Kiwis had to work with what we had. I've a friend with a Pommy rod, a SBC powered 1948 Vauxhall. US iron was a bit thin on the ground as local GM, Ford and MOPAR offered their own vehicles and being Commonwealth countries that was all that was offered. Given that, I suspect you'll have to be kind to your OEM rear axle as it was only designed for a 2lt six with 100hp. As it has a chassis you may need to swap in another rear end at some time once you get it running.
    Carroll SHELBY started with a British AC car that he shoehorned a 289 into before going all out and stuffing in a 427FE.
     
    scotty t, dan31, 31hotrodguy and 2 others like this.
  24. Poh
    Joined: Apr 17, 2007
    Posts: 266

    Poh
    Member
    from Quincy,Ca.


    Nobody has run you off yet, don’t let a couple grumpy type posts stop ya from hanging around.
    And yeah, don’t sweat the carb spacer, as already said , going up and down hills don’t make a difference.
    Enjoy the site, try to stay on the right side of the written , or otherwise implied “rules” . If nothing else it gets pretty comical/irritating reading all the bickering between the engineers, and the seat of the pants types. Plus you might learn something you didn’t know.

    That’s how I roll through here anyway.



    Sent from my iPhone using The H.A.M.B. mobile app
     
  25. khead47
    Joined: Mar 29, 2010
    Posts: 1,789

    khead47
    Member

    Intros are no longer required.
     
  26. Poh
    Joined: Apr 17, 2007
    Posts: 266

    Poh
    Member
    from Quincy,Ca.

    He has one, in the new guy place.


    Sent from my iPhone using The H.A.M.B. mobile app
     
    31hotrodguy likes this.
  27. British cars are cool (except the wiring sometimes)
    lots of 'across the pond' cars are posted here
    big motor + light weight car = cool.....ask Carol Shelby
     
    powrshftr and 31hotrodguy like this.
  28. Gerrys
    Joined: May 1, 2009
    Posts: 327

    Gerrys
    Member

    amazon69 likes this.
  29. amazon69
    Joined: Jan 3, 2018
    Posts: 18

    amazon69
    Member

    Alright. Thanks. I had a little message come my way..we'll see how it goes. Re the rear axle..I have a rebuilt and strengthened one with an LSD good for 300bhp so should be good to go, I'm not going mad with the engine. The model after mine Bristol put in Chrysler 313's, then later cars had 360's, which is why I have gone down the Mopar route. Still enough to make me a pariah in Bristol circles though. I have got myself more concerned about the safety aspect of having the motor level now than I have the carb. I can get it all lined up perfectly, but only if the motor/tranny sits parallel to the road/chassis, which is not too safe. But then I don't suppose many 60 year old cars are anyway.
     
    31hotrodguy likes this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.