2498 288 Ultramatic Exhaust Leak Testing
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Please see and comment on the attached image and video/audio.
Smoke machine was attached to tail pipe. Major exhaust leak points include: 1. intake/exhaust manifold assembly surface 2. exhaust deflection shaft openings 3. exhaust pipe o-ring Is there a gasket or suitable gasket material for use at the intake/exhaust manifold assembly surface? There is no gasket there now. Attach file: IMG_20250108_145659459.jpg (3,660.74 KB) VID_20250108_150338671.zip Size: 7,331.27 KB; Hits: 13
Posted on: Yesterday 17:48
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Re: 2498 288 Ultramatic Exhaust Leak Testing
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I purchased a gasket set from Max Merritt. It contained the 3 block-to-manifold gaskets, the carb base gasket and the exhaust pipe gasket. There was no intake/exhaust manifold gasket.
Page 15 of the Service Manual Section XII Fuel and Exhaust says "In the event the exhaust or intake manifold is to be replaced, the manifolds may be separated at the milled joint of the manifold heat riser (hot spot). There is no gasket at this joint." I did find this https:\\www.ebay.com/itm/383542313781.
Posted on: Yesterday 18:56
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Re: 2498 288 Ultramatic Exhaust Leak Testing
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Posted on: Yesterday 19:40
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1955 400 | Registry | Project Blog
1955 Clipper Deluxe | Registry | Project Blog 1955 Clipper Super Panama | Registry Email (Parts/service inquiries only, please. Post all questions on the forum.) service@ultramatic.info |
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Re: 2498 288 Ultramatic Exhaust Leak Testing
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If there was originally no gasket between the intake and exhaust manifolds, I would think that putting a gasket in will change the geometry of the mounting surfaces to the block. That may create more leaks at the block. One thing you could consider is using a sealer on that joint instead of a gasket. I've used VersaChem Exhaust Seal with good results in the past.
Posted on: Yesterday 22:03
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Kevin
1954 Clipper Super Panama | Registry | Project Blog 1938 Super 8 1605 | Registry | Project Blog 1953 Clipper Deluxe Club Sedan | Registry | Project Blog |
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Re: 2498 288 Ultramatic Exhaust Leak Testing
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There is no need for a gasket there as it’s simply a heat chamber used to quickly open the automatic choke. It serves no other purpose that I can think of.
Posted on: Today 4:18
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