cast iron header exhaust leak 1 Attachment(s)
do i need a special gasket between the block and the header? and do i need to run the rings that go into the header? also where do i get a flange gasket?
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Re: cast iron header exhaust leak 1 Attachment(s)
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Re: cast iron header exhaust leak i have the same gasket, where would i get a flange gasket?
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Re: cast iron header exhaust leak Looks like the setup in the photos uses the standard exhaust to header doughnut type gasket. If you are mounting yours different, you may have to do some searching or make your own. Better auto parts stores carry material that you can fab one up. do an on line search with the inside and out side diameters you need. If nothing else this might help with what cars they fit so you can ask for them at the parts counter. Or contact the dealer you bought it from.
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Re: cast iron header exhaust leak Snyders and others sell a high temp silicone exhaust sealant. I have used it on a muffler joint and it does not burn off.
Speedway also reccomends it for flathead exhaust gaskets. Might seal your gasket. I do not know of any flange gaskets for model A. John |
Re: cast iron header exhaust leak Check the face of the header, after I bolted my header to block I could slide a .018 gauge between block and header. I had to have it milled. I found flang gaskets at O Rilleys.
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The one ZZ has is my new design and it is more stable. It is my goal to machine nothing that came from the guy Snyder bought the tooling from. the Thomas head is in the process of being replaced. Tod |
Re: cast iron header exhaust leak Thanks for the clarification Tod. I assume Brendan's best chance is to have his surfaced?
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Also zzlegend, what head do you have on your engine in the picture. Thanks. |
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Re: cast iron header exhaust leak Tod, I wish I could have bought your header from Snyders but I did not about it. After I got it flat I found that it would also interfere with the Webber intake manifold. I had to have header milled with a .010 tilt downward and the intake manifold milled with a .010 tilt upward. I put it together and it works.
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Tod |
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Re: cast iron header exhaust leak What I found out after making my header and fitting it, using the Weber intake set up that Snyder sells is that some of the manifolds Snyder buys are different in distance from the block outwards. The first header I made and machined using a new Weber manifold and carb fit just fine. I proceeded to machine the run of headers accordingly. Then I heard about some interference. I re-tested what I had and there was no interference. I took the Weber intake over and there was no interference on a returned header. The we looked at the two intakes and there was an obvious difference. When I got back to the shop I modeled up my own intake designed for Weber carbs. It is just a matter of time until I offer my own version that will never interfere with the header and that doesn't have the eye-sore of a welded in plug in the bottom.
Tod |
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Re: cast iron header exhaust leak I would have thought that those who go to the trouble and expense of producing things like these headers would want to maximise their market. That being so, why the heck do they not make them so that they can be used on RHD cars? It would only be a matter of routing the exhaust gasses forward before turning them down so that they could be directed under the steering box. That is, male them mirror image. There is plenty of room to do it but it seems nobody considers RHD (There are many things we can't get for RHD).
Before any of you suggest I make them, forget it. The market is not big enough for solely RHD headers and for me to make a universal one, under the rules of your current President, sending manufactured stuff into the US is not on. (Not being political) Besides, that would be too many makers in a limited market. For that matter, why did Henry do it the wrong way? He'd have been much better advised to reverse the exhaust manifold. Driving a RHD Model A in warm weather is NOT comfortable for the hot air coming in around the pedals which cannot be sealed. |
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You answer your own question. That is , not enough of a market to warrant such. Tod is about the ONLY person now making patterns and finished product for our hobby, on a large scale. He has to make a living of this and cannot make stuff just because. There must not be many people left who can start from scratch and make perfect looking/fitting parts ...start to finish. This thing about the ill fitting OLD cast iron headers, has been discussed for years now. I guess until all read and understand what he is saying, some will unfortunately buy the old version without knowing of its shortcomings. |
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