No announcement yet.

Broken exhaust manifold!

  • Filter
  • Time
  • Show
Clear All
new posts

  • Broken exhaust manifold!

    Well, here is my sad story and I'm ashamed to admit it.

    As most of you know, over the past few days I have been working on Wheezy to get him straightened out from the PO. Well, after reinstalling the intake/exhaust manifold I developed an exhaust leak. So, being the smart ass that I am, I remove the manifold and replace the gasket and gland rings to fix the problem.

    Well, normally this would be a simple task, but NO, not for the idiot! I carefully set the rings into the manifold and for some reason couldn't get the damned thing to line back up. Yesterday a fellow club member brings over his extra manifold and I commenced to installing that. Pretty decent fit, well, got to the final tighten up cold and WHOOPS, it cracks between 3 & 4.

    So, this morning I go to refit the old manifold and low and behold, I find the reason it leaked and would not fit without leaking. The PO installed gland rings that were not only undersized, but of a very cheap material that is way to flexible, thus letting the manifold stretch and deform and because I did not use the old rings it will no way now line up with the new rings to seat.

    Now, I know you are going to say, "just use the old rings and new gasket", well, tried that and I am thinking that the flex developed by the use of the bad rings won't let it come even close to the holes lining back up. So, until I can scrape up enough for a new paired manifolds, I am not driving the car.

    So, my warning to all others.
    BEWARE of INFERIOR gland rings!
    You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!

  • #2
    I have never used them and have had no leaks. I use the copper gasket, tho, and a good machined surface on the pair


    • #3
      I use the rings whenever i can, but many folks do not. I would slap it together without them but use the copper gaskets as Dave mentioned
      3~ Tudor's & 1~ Coupe
      Henry Ford said,
      "It's all nuts and bolts"
      "Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible."

      Mitch's Auto Service ctr


      • Mitch
        Mitch commented
        Editing a comment
        Hey Wiz your not an IDIOT!!

    • #4
      T-bird I use the rings and copper gaskets on t's and a's and have never had issues if the parts fit right to begin with.


      • #5
        I can only use the rings in the front 3 holes on my 28, but with them and the copper gasket I have no leaks.

        Do you need to replace the intake also? Why not just the exhaust, and BTW the repro ex. manifolds I've seen are excellent.


          BILL WILLIAMSON commented
          Editing a comment
          Dave lost a gland ring???---Later, he had a RATTLE in his muffler!--He calls his car, "THE TUDOR FROM HELL"--NLOL
          Bill Laffin'

      • #6
        Originally posted by tbirdtbird View Post
        I have never used them and have had no leaks. I use the copper gasket, tho, and a good machined surface on the pair
        I do not use them most of the time. A lot of the original manifolds sag at the rear, so you have to leave the back one out any way. I think some cars came with out them, because some of the manifolds do not have the counter bore in them.


        • #7
          We've also found one floating in the muffler. However, we also found dry fitting the rings to the proper depth when the manifold mates the block is tricky depending on gasket used . Sometimes we file the rings slightly in order to allow for proper gasket seal (even on other make cars such as GM straight 8's, etc.) and after prying them open to get a good bite in the bores.


          • #8
            Good points plyfor and it is something I do but a great tip for guys getting started.


            • #9
              Well, just an update; I have refreshed the old manifold and with a new set of bolt mounted copper gaskets and a bit of gasket sealer and Tadaa!!, no leaks. All is well except I now have a cracked manifold to get repaired.
              You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!


              • #10
                If the ears of the manifolds AREN'T even heights, just grind a relief in the backside of the cup shaped washer. Mark it & carefully install it.
                Dad Cheep


                • #11
                  YUP not good when they break~~
                  You do not have permission to view this gallery.
                  This gallery has 2 photos.
                  Ill., Region MARC & MAFCA
                  MARC JSC Member
                  MAFFI Trustee
                  2023 Hamilton National Co-Chair
                  National Facebook Admin.


                  • #12
                    Just sorted through my pile of exhaust manifolds. Was suprised to see some sagged more than 1/4". Doubt those would ever seal. Put those with 1/8" or less of sag in the keep pile. Curious where others draw the line on junk and possibly usable. Not trying to hijack the thread, thought this would be a good place for others to find info at a later date. Rod
                    "Much of the social history of the Western world, over the past three decades, has been a history of replacing what worked with what sounded good." Thomas Sowell


                    • #13
                      Ya know Rod, I was thinking the same thing. One of the club members suggested mounting it upside down and heating it to red and hanging a 40# weight off the end to reset the sag.

                      Could work, at least worth a try if you have one or more that are ¼" off or more.

                      Mark, the one I have that "popped" isn't broke, just a single crack, and I didn't really look close to see how long of a crack, so I am thinking it may be repairable. We'll see, I'm not tossing it just yet.
                      Last edited by DaWizard; 09-27-2017, 11:31 PM. Reason: twinky fingers
                      You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!


                      • Rowdy
                        Rowdy commented
                        Editing a comment
                        Sorted through 14 only found 3 usable. Still need to check the few heater manifolds I have and may stumble onto some more original plain manifolds. The badly drooped manifolds are headed to the scrap along with the 2 broken intakes. Several of the exhaust manifolds that are being pitched are drooped to the point that when using a straight edge across the top edge of the gland bores for #1 and #2 the straght edge is not even touching the mating surface for #4.There was a thread about 12 years ago showing how the Model T guys were straightening their manifolds. Think I remember reading some A guys trying it without much success. Not sure I could find the Model T link with the change in the format on their club website. I do not think welding a broken manifold is worth the risk. Rod
                        Last edited by Rowdy; 09-28-2017, 12:12 AM. Reason: content

                    • #14
                      it will just crack again in the same place


                      • Mitch
                        Mitch commented
                        Editing a comment
                        They are easily available new or used unless your really bored.
                        I agree with Dave

                    Related Topics


                    • DBaldwin
                      Manifold gasket
                      by DBaldwin
                      The other day a spent working a list of things on Hugh’s coupe , one item was an exhaust leak after fixing the joint where the muffler meets the manifold we found a leak at the number one exhaust right at the front was a blown gasket. So I read up on gaskets and gland rings. Lots of different schools of thought, almost like asking what oil to use. Lol. my question is who supplies the BEST quality...
                      04-14-2022, 09:36 PM
                    • Rumbleseater
                      Manifolds Happy Together
                      by Rumbleseater
                      Purchased a new exhaust manifold from Snyder's to replace the waffle manifold on our '29 Coupe. Got the stock intake manifold bead blasted and crossed my fingers the 2 manifolds were compatible. The piece of paper slides evenly (with slight resistance) under all of the ports. They are sitting on our new granite kitchen counter which is perfectly flat. The engine block mating surface is also even across....
                      You do not have permission to view this gallery.
                      This gallery has 2 photos.
                      04-07-2022, 11:05 AM
                    • BNCHIEF
                      Manifold gakets
                      by BNCHIEF
                      Which intake exhaust manifolds gaskets are best copper and gland ring or the steel one piece and do you use the gland rings?
                      07-03-2018, 09:29 AM
                    • Great Lakes Greg
                      surfacing manifolds
                      by Great Lakes Greg
                      I have a new exhaust manifold from Snyder's and I am getting it surface matched to the intake. When they are bolted together, the intake manifold is 1/8 inch below the exhaust manifold surface. This seems like a lot to me, only because I have never noticed it on other examples in the past, presumably because they were closer matching. Is 1/8 inch too much to take off the exhaust manifold?...
                      09-30-2020, 07:25 PM
                    • Captndan
                      by Captndan
                      I removed the exhaust manifold to fix a leak. This engine was built by a very reputable Model A builder. The manifold had the two piece gasket next to the block and the one piece gasket next to the manifold. Why? The exhaust manifold was slightly eroded (pitted). Could this be the reason for the two gaskets? I will have the manifold milled and hopefully use only the one piece copper gasket....
                      11-19-2022, 01:47 PM
                    • Roadster Rich
                      Manifold Gasket ???
                      by Roadster Rich
                      Still slowly reassembling the Town Sedan engine. The manifold that was on it had about 3/16 sag and I could see where it had blown out the gasket at the rear. I have a new manifold (both exhaust and intake) and gland rings. I have used copper gaskets in the past, but the new copper ones I have will not clear the gland ring, they are smaller diameter, probably the diameter of the block exit without...
                      05-23-2017, 12:05 PM
                    • Rumbleseater
                      New Exhaust Manifold Beautification
                      by Rumbleseater
                      Purchased a new exhaust manifold from Snyder's to replace the existing gaud ugly waffle manifold on our '29 Coupe. I had some high temperature paint I had purchased from Eastwood Co. over 20 years ago . After cleaning up the top mold marks on the manifold, I heated it up, and applied 4 coats of the paint with a sponge. The paint was still good after all these years, with just a good stirring....
                      You do not have permission to view this gallery.
                      This gallery has 3 photos.
                      11-14-2021, 08:02 AM
                    • BTERRY1
                      exhaust manifold nuts loosening
                      by BTERRY1
                      It's been a while since posting anything. My exhaust manifold nuts keep loosening, I mean daily. I tried 25 foot pounds and then 30 with the same results. I was thinking blue locktite. Anyone done this or any tips?
                      12-03-2021, 07:40 PM
                    • cicero
                      Manifold gaskets
                      by cicero
                      I have a 1931 Tudor purchased a year ago March. I decided to replace the exhaust manifold while I was also replacing the muffler parts. I have the new gasket for between the exhaust manifold and the head. Is there a gasket for between the intake and exhaust manifolds, or are they just metal to metal?
                      07-12-2022, 03:50 PM
                    • WTSHNN
                      Cracked Manifold
                      by WTSHNN
                      I took my manifold off a few months back to put on a cleaner looking one. I pulled the old one off the shelf over the weekend and found the problems in the attached pics.

                      The cracks do not go all the way through the metal. The one port is egg shaped. There is also a crack on the outside of the manifold but again it doesn't go all the way through.

                      It wasn't leaking exhaust...
                      You do not have permission to view this gallery.
                      This gallery has 4 photos.
                      10-28-2019, 05:59 PM