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Technical ***June 2021 Banger Meet Thread - How's Your 4 Cylinder***

Discussion in 'Traditional Hot Rods' started by Jiminy, Jun 1, 2021.

  1. Jiminy
    Joined: Oct 25, 2012
    Posts: 399


    Link to previous month:

    Old Dawg informs us there is an effort to resurrect a F.A.S.T. newsletter but it would require 400 subscribers (minimum number to attract vendors). Subscription price is unknown at this point (2021/6/1) but if you are interested send an email to

    Coming Events: (PM Jiminy with additions/corrections)
    Santa Margarita Time Trials are scheduled for 26 June 2021!

    International Speedsters Trials & Reunion June 23rd-26th 2021 Lincoln, NE
    RPM "You Asked For It" Drags June 27 Barona Dragstrip in San Diego.
    Monterey Car Week August 7th - 14th, 2021
    Bonneville Speedweek August 7th - 13th, 2021
    Hot Rod Hill Climb Sept 17th - 18th, 2021
    49th Running of the Antique Nationals October 17th 2021-Irwindale Speedway

    Stay safe.

    For the HAMB banger newbies, here are some links to a lot of banger info:

    Jim Brierley's book 4-bangers! And me! is a must read book for all banger enthusiasts. US customers send $34.00 all color except for the oldest pictures (includes S/H in the U.S.A.), PayPal welcome, to:
    Jim Brierley, 39480 Colleen Way, Temecula, CA 92592.
    phone: 951-695-7313.

    Here is a list of most of the prior monthly banger meet links:

    Banger basics. another info link list:

    The link below shows flywheel lightening dimensions
    and this link shows the missing image from the above post

    The 4 Banger hot rod picture thread.

    Model B rod bearing insert numbers

    Engine tuning with a Vacuum gauge

    Adjusting dual Strombergs:

    Helpful Model A tools and tips:

    Gary in MN's late model Malory distributor conversion for A/B engine:

    Elrod's stuck head tech:

    Model A generator to alternator conversion:

    Gear ratio / speed and RPM calculator:

    Model A master cylinder mounting bracket ideas:

    Go here to read the 1931 edition of Harry Ricardo's book "The High Speed Internal Combustion Engine"

    Chevy Banger Stuff

    Post 198 starts a great discussion of the shape of a flat head combustion chamber

    T-5 5 speed in a Torque Tube:

    New Banger Block in the Works

    Model A & B Style Cast Iron Cylinder Head Compression Ratios.
  2. denis4x4
    Joined: Apr 23, 2005
    Posts: 3,766

    from Colorado


    I participate in an online smart phone photo challenge. Last week was B&W, so I took a photo of my '29 Supercab truck in front of the Grange building built in 1911. This is the car I'm taking to the Speedster Reunion at Speedway later this month.
    Last edited: Jun 1, 2021
    J.Ukrop, 282doorUK, Gruntis and 5 others like this.
  3. V4F
    Joined: Aug 8, 2008
    Posts: 4,198

    from middle ca.

    nice truck
  4. Checking in

  5. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,508


    Shecking in
    Jet96 likes this.
  6. brjnelson
    Joined: Oct 13, 2002
    Posts: 523


    Hey guy's after the Iola swapmeet come to The Showdown at Sanford Field in Hillsboro WI
    I will be there dragracing my Banger in the FLATHEAD drags.
    Binger likes this.
  7. Stovebolt
    Joined: May 2, 2001
    Posts: 3,395


    It's currenty a beautiful sunny early winter's day here where I live ... in Australia. Just having a cuppa before I crank up the coupe to go get a few suppplies. Life is good!
  8. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 1,309

    Barrelnose pickup

    BAD3726F-93C9-4E87-9210-362A14264139.jpeg 88BCCBCF-34EB-4176-8C8C-C0E59B952DCE.jpeg 350855CF-D20A-4378-A32D-89953416B436.jpeg 51C16F9F-7075-455A-9679-E9FF2D826666.jpeg B0883A6B-65FF-4E54-8650-A3B4D9CBCF74.jpeg FF669B7F-B3CC-4DC1-ABC7-F7F226BB8B6D.jpeg Back again,
    For those who answered / advised or were interested last month, I spoke to my engine machinist and was advised 2 ways to look at it.
    Pressure test (low pressure) the block to first see if it’s just a heat crack or into the water jacket, if just a heat crack, fit a cast seat( some special cast seat material) and as it would only be run very infrequently, monitor it.
    If into the water jacket, stitch , sleeve and a new seat and it should be okay.
    This was all before I cleaned it up and cracked tested it last night with dye penetrant just to see the extent of the crack.
    Already has a seat installed so could be a old repair as this engine has some history with it.
    No crack to the seat (shouldn’t be really)so chicken and egg scenario!
    Yet to pressure check and see that outcome.
    The full stitch ,sleeve and seat scenario is on the cards but I live in hope.
    My first block crack experience so learning on the run.
    Jet96, Old Dawg and winduptoy like this.
  9. Checking in!
    Went and picked up the donor engine for the Model T.
    Found a surprise, .330 lift cam!
    Screen Shot 2021-06-01 at 7.14.26 PM.png Screen Shot 2021-06-01 at 7.14.15 PM.png
    Jet96, guitarguy, Old Dawg and 2 others like this.
  10. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 1,176

    wheeltramp brian

  11. Checking in, went to a swap meet last weekend here in Switzerland, first one in two years, so good to be returning to normal hotrod life
    Old Dawg, Randall and winduptoy like this.
  12. stubbsrodandcustom
    Joined: Dec 28, 2010
    Posts: 1,423

    from Spring tx

    Back in the Banger crew finally....

    COUPE 22.jpg
    Retson the Racer and winduptoy like this.
  13. railcarmover
    Joined: Apr 30, 2017
    Posts: 657


    Barrelnose..B block with seat, sleeve and pins to repair. 0000000.jpg

    Can anyone tell me why this babbit is so dark? 00eo.jpg
  14. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 1,309

    Barrelnose pickup

    Thanks Railcarmover, could well be in my future. Definitely worth the save.
    Old Dawg likes this.
  15. railcarmover
    Joined: Apr 30, 2017
    Posts: 657


    I look at it this way...cracking relieves tension, Odds are its done cracking,fix this and the problems are over. Course, what the hell do I know..we are dealing with the gods of ford grey iron castings..
    Old Dawg and Barrelnose pickup like this.
  16. My $0.02
    This looks like it was repaired once already, I am not sure about the corner of the bore, the ground off edge.
    To me, it looks like it may have been welded once. What is the bore size?
    The crack is not that bad, if you are going to drive it only occasionally, do the pressure test, 15psi max.
    If is leaking just a little, I would just add some sodium silicate and run it. You can do more damage to the port wall with pins and pushing in another seat. The reason is simple, there is marginally enough material there to support having another seat put in and remember, seats add stress to the casting.
    To be honest, blocks are around, having larger valves installed is very inexpensive, babbitt to bearings is again economical. It just depends on your intended purpose with the vehicle.
    Old Dawg likes this.
  17. Hmm.
    Darker babbitt usually indicates a higher level of lead in mix.
    I would offer it is pretty soft.

    Old Dawg likes this.
  18. I'm in! (barely) IMG954329.jpg
  19. railcarmover
    Joined: Apr 30, 2017
    Posts: 657


    Ive dealt with soft babbit before,so soft you can score it with a razor...this is very hard ( in my limited,primitive test),the blade slides on me stumped,the cat who had it before me was a machinist at Aerojet..wondr if he worked something up.
    Old Dawg likes this.
  20. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 1,309

    Barrelnose pickup

    Appreciate your input John, and the pressure test and adding iron tight is on the cards if only a minor leak.
    I also am worried about further dramas doing the major repair route.
    As for blocks being around, larger valves being very inexpensive and Babbitt to bearings being economical, not down here mate, not in our world. My engine machinist is sending 2 blocks across country(a long way) to have the Babbitt redone.
  21. G_Don
    Joined: Feb 17, 2017
    Posts: 23


    Anyone know if I need to put JB weld and sand it smooth on where the electrolysis happened on the head? Or is that unnecessary.

    And one for fun, anyone know if this is an original or a repop from the pics? Heard the repops are more functionally sound.

    Attached Files:

    Last edited: Jun 2, 2021
  22. V4F
    Joined: Aug 8, 2008
    Posts: 4,198

    from middle ca.

    my week - decided to up grade my brake lines . what an experience ! i dont remember the last time my system was totally empty . after a couple of days bleeding (no pressure bleeder) , finally got some brake .
    if your doing this (beg , borrow or steal a pressure bleeder) ............. all good .. steve
    Outback likes this.
  23. Dustyp489
    Joined: Feb 1, 2008
    Posts: 157


    Checking in, hope this is the month to get my A back on the road
  24. hardtimesainit
    Joined: Jan 24, 2009
    Posts: 601


    Looks in good condition...near new.
    If you havent checked for FLAT, a skim of mating surface should make it good to go. I wouldn’t be concerned with what I see. However, a sacrificial anode might help preserve aluminum when mated to cast iron !
    Dont know if repop.... and/ or how many repop versions were ever made.
    G_Don and Old Dawg like this.
  25. YEAH! What I'd do is solder a piece of copper wire to copper washer which is a bit smaller than the radiator neck to a Zinc bolt. Drop it in the radiator and replace the cap! (the washer to keep the anode from rattling around in the radiator tank!)
  26. Yep, understood, different shops have different capabilities.
    When the club Elders do not have a local babbitt shop to go to, you have to explore or go with inserts.
    Been doing them here for last 10 years or so, but it is getting harder to find the proper inserts.
    Old Dawg likes this.
  27. RussTee
    Joined: Mar 25, 2008
    Posts: 1,221


    Im here
    winduptoy likes this.
  28. Tribalmonkey
    Joined: Feb 17, 2019
    Posts: 741


  29. Casual 6
    Joined: May 25, 2008
    Posts: 255

    Casual 6
    from Great NW

    My "A" broke the starter gear and has an odd starter drive (bendix) setup. Trying to determine what I need to fix the problem. Tried asking on the main forum (Technical - Banger Help - Model A Starter Drive | The H.A.M.B. ( without any replies. Maybe someone here can help?
    Just broke the starter gear on my Model A engine. I want to fix/replace the drive, but this setup looks different from what I expected. It looks like the drive is reversed on the shaft. Anyone know what's going on here?

    I didn't put this together originally, so I don't know what parts were used. The engine does have an aluminum flywheel.

    Any help figuring out what starter drive to order would be appreciated.

    Last edited: Jun 5, 2021

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