Help identify a 4 cylinder Kermath

Author Message   Jody Posted on Saturday, April 06, 2002 - 12:04 pm:        Hi, I'm JOdy. Among a group of antique gas engines that was purchased months ago,there was a Kermath engine that came with a group. It is a 4 cyl. #13637. It looked like it may have been painted blue. I was recommended by Rich Langtry to come to this sight. Anyone know the history of the Kermath? Thank you very much, JOdy   andrew Posted on Saturday, April 06, 2002 - 12:13 pm:        Jody, A lot of multi-cylinder Kermath engines are still in use in vintage Chris Craft and other runabouts and utilities. There is literature information on the engines available. You will need to detirmine what model of Kermath engine you have. Among the 4 cylinder models were the: 20 35 50 Sea-Cub Sea-Bird Sea-Dog If you can supply the engine displacement, or bore and stroke... we can probably identify what engine you have. Regards, Andrew   andrew Posted on Saturday, April 06, 2002 - 12:16 pm:        Jody, If you can't get any other information a photo might help.   Jim Walker Posted on Friday, May 10, 2002 - 11:56 am:        I have a Kermath Marine Engine I am trying to get some history, specifications, etc. for. It is a Ford or Mercury Flathead V8 Kermath Conversion (from the '40s??). It has a lot of marine features such as marine manifolds, aluminum oil pan, vertical starter drive, and a Kermath transmission. Any assistance would be appreciated. Jim   andrew Posted on Friday, May 10, 2002 - 04:48 pm:        A lot of the inline Kermath engines were based on Hercules blocks.... but I don't think that the V-8 was. A quick look at some if the Kermath information that I have reveals only one V-8 which seemed to be refered to as a model "V-8". It was 90HP at 3600RPM and 221 cid.... but I am not sure what block it was based on. Anyone else...???   Bill Salisbury Posted on Thursday, January 15, 2004 - 06:33 pm:        This Kermath V-8 was based on a Ford flathead V8 of the 1946 vintage and newer. They also used this engine in a version called the Kermath Screwball. The engine was mounted on end and drove an underwater unit that was mounted through the bottom of the boat. The entire engine swiveled for steering, much like an outboard. Hope this helps.   Joe Wolfe Visitor Posted on Friday, July 23, 2004 - 06:05 am:        I have a Kermath Model "Sea Jeep" 61 H.P. engine in an antique boat I purchased. I have the orginal manuals, it's an L.Head, 4 Cylinder, 3 1/8" bore, 4 3/8' stroke, piston displacement 134.2 cu. inch. I live near Toronto, Canada and want to have this engine rebuilt. Are you aware of any rebuilders in this area. Also any other information you have on these engines. Thanks, Joe   David Adams Visitor Posted on Sunday, October 17, 2004 - 05:56 pm:        I recently purchased a Dodge boat powered by a Kermath Sea Jeep Highspeed engine. I would like to get technical specifications and manuals for this engine.   Bill Freeman Visitor Posted on Sunday, October 31, 2004 - 06:23 am:        I have a Kermath " Sea Jeep Fisherman " complete with shaft, prop, instruments, tank, etc from a 23' 6" x 5' launch built in late 30s ? Engine is in excellent cond. hasn't been used in over 50 years. Would like to sell. Can anyone tell me the value ?   spikon New member Username: spikon Post Number: 1 Registered: 12-2004 Posted on Monday, December 20, 2004 - 05:08 am:        I just bought a sailboat with a 20 hp Kermath Sea-Cub. Does anyone know how to get a manual for this engine? Is it anything specail with this engine? Value? Tomas   David Adams Visitor Posted on Sunday, June 12, 2005 - 04:35 pm:        I have a Kermath Sea Jeep Highspeed. Unfortunately the boat it came in did not include any manuals or othe rmaintenance documentation. Can some help me with what is the oil capacity w/filter change? What is the meaning of the extra mark above the "full" mark on the dipstick?   larry_from_maryland Senior Member Username: larry_from_maryland Post Number: 240 Registered: 07-2003 Posted on Monday, June 13, 2005 - 12:42 pm:        I am not sure which engine you have,but alot of the old herks had the word FULL hand stamped between the 2 marks.Sometimes full ends up being closer to the add line than the full line.The top line is the full mark and the lower one is ADD.On one engine i have it took several long looks and a check of the manuel.   joe_h New member Username: joe_h Post Number: 2 Registered: 05-2005 Posted on Tuesday, June 14, 2005 - 03:37 am:        Hello Andrew and Kermath owners every where. I also am looking for manuals for a Sea Cub and a Sea Jeep. You mentioned that info was available. Can u direct me to it? My Sea Jeep s/n is 3061J50 and the tag says Kermath Canada Ltd. Toronto. The Sea Cub s/n is 650251 Code ZXBM ZX. Kermath Mfg Co.Detroit Michigan. The code might have something to do with the clutch which has a reduction gear so it takes a left hand prop. The Sea Cub needs a starter and generator. Thanks all   larry_from_maryland Senior Member Username: larry_from_maryland Post Number: 241 Registered: 07-2003 Posted on Tuesday, June 14, 2005 - 07:06 pm:        The ZXB is the hercules engine model.I guess the M is for marine,and the next ZX is like New York they named it twice.   david adams Visitor Posted on Friday, June 17, 2005 - 02:51 pm:        To Lary from Maryland. The Kermath Sea Jeep Highspeed is a marine conversion of the Willy's "Jeep" L-head 4 cylinder engine from the Willy's Jeeps (M38, CJ-2B, etc.). It is not a Hercules engine conversion. (I believe it was derived from a Continental engine.) My problem is that there are three (3) marks on the dipsick -from bottom to top: "ADD", "FULL", and unlabled. At "FULL" the engine only took 3 quarts including the filter. Obvisouly too little. In a JEEP with no filter the sump holds four (4) quarts. The filter - when equipped - another quart.   larry_from_maryland Senior Member Username: larry_from_maryland Post Number: 242 Registered: 07-2003 Posted on Friday, June 17, 2005 - 07:32 pm:        You may have a replacement dipstick that someone added a higher mark to when they realized the oil leval was too low.   sieghard.greither@augustakom.net Visitor Posted on Wednesday, December 21, 2005 - 04:32 am:        Hello, i have an old sea bird 50HP Kermath engine. Have anywere infomation or manuals about this old engine?   poker casino806 Visitor Posted on Monday, March 06, 2006 - 04:20 pm:        poker casino poker 612   poker casino752 Visitor Posted on Monday, March 06, 2006 - 04:36 pm:        poker casino poker 113   SMITHDAVE12 Visitor Posted on Monday, July 17, 2006 - 04:55 am:        I HAVE A 4 CYLINDER FLATHEAD ENGINE WITH WHAT I THINK IS A UPLIFT CARBURATOR. IT'S IN A THOMAS BOBCAT. IT'S NOT THE ORIGINAL ENGINE. I NEED A HEAD GASKET FOR THIS ENGINE BUT I DON'T KNOW THE MAKE OR MODEL OF THIS ENGINE. HAVE PICTURES, CAN ANYBODY HELP.   Tomas Segebladh New member Username: spikon Post Number: 3 Registered: 12-2004 Posted on Monday, July 17, 2006 - 01:15 pm:        Try to get in contact with Jim Thomson, he might help you. Address: jim.thomson@verizon.net. Good luck, Tomas   John Barnes Visitor Posted on Sunday, July 30, 2006 - 05:59 pm:        I am looking to find info and pictures, if available for a Kermath Sea-Prince. It is a flat head six and I believe originally rated at 95 H.P. My dad had a boat in the early to mid 50's that was powered be a "Sea-Prince". Any info that might be available would be greatly appreciated.

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