Snoopy11 5,714 #1 Posted January 23, 2022 Engine had broken rod, ...after cleaning aluminum off... crank journal was proper spec for GX390 base (rod changed to ARC GX390)... had partially clogged carburetor (among other fueling issues). Valves are set .006 intake --.008 exhaust. Had a hard time finding valve lash settings after removing cam for engine repair. Called around... and did A LOT of research... and finally came to the above setting, which is the same for my DUROMAX 457... Only other modification, removed sole balance gear... (only had 1 in this particular engine). Everything cleaned, de-carboned. I expected a tiny bit of spoke on startup... as everything was lubricated with molly lube, including rings which were re-gapped. I was told that it might be a 35 year old model... I think... it is less than that... but the label/serial does not say. REGARDLESS... it is back in business. Work I put into it probably out-values the generator... LOL PLUS... it is on the trailer that I made out of a golf cart frame! Don 2 Share this post Link to post Share on other sites
Achto 27,609 #2 Posted January 23, 2022 28 minutes ago, Snoopy11 said: I was told that it might be a 35 year old model... I think... it is less than that I thought that Briggs came out with their single cylinder OHV engine in 2006. Type code stamped into the valve cover should revile manufacture date on engines built after '65. From B&S site The engine's code number indicates the exact date it was manufactured. This system provides an easy way to determine the age of your small engine. The following is an example of interpreting the date for the code number 99011556: The first two digits (99) denote the year of manufacture. In this case it is 1999. The next two digits (01) are the month of the year, which is January. The following two digits (15) are the day of the month. In this case the 15th. The final two digits designate the plant and assembly line. Therefore, this engine’s manufacture date was January 15, 1999. 1 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #3 Posted January 23, 2022 Thanks @Achto!!! I am certainly very interested in dating this one... I can't get a definite answer from anyone... Don 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #4 Posted January 23, 2022 So, I just went out to the shop... froze my assets off on the way there... and low and behold... I take a side look at the valve cover... that I took off and cleaned-up (never noticing the numbers on it...) AND... drum-roll... 030121 January, 21st... 2003... VERY INTERESTING!!! Wish I knew how many hours it had on it... looked like quite a few... @Achto... you da' man! Don 1 Share this post Link to post Share on other sites
Achto 27,609 #5 Posted January 23, 2022 7 minutes ago, Snoopy11 said: January, 21st... 2003 Guess I was wrong on 06 being the start of single cylinder OHV engine. I'm off to do some more research. 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #6 Posted January 23, 2022 2 minutes ago, Achto said: Guess I was wrong on 06 being the start of single cylinder OHV engine. I'm off to do some more research. I was thinking exactly the same thing... I actually had to take a second look with my frozen eyes... just to be sure of what I was seeing... Don 1 Share this post Link to post Share on other sites
Achto 27,609 #7 Posted January 23, 2022 (edited) 1 hour ago, Snoopy11 said: I was thinking exactly the same thing Did some research. First OHV Briggs was the model F made in the '20's. Intake valve was spring loaded and opened by suction only on the intake stroke. The exhaust valve operated with a push rod and rocker arm. The modern Briggs OHV single was released in '91 The Briggs DOV engine with lever actuated valves was released in '06 Source. https://www.basco.com/content/dam/basco/na/en_us/files/company-profile/our-history/Briggs%26Stratton_History.pdf Edited January 23, 2022 by Achto 2 Share this post Link to post Share on other sites
Lee1977 6,673 #8 Posted January 27, 2022 Looks just like my Generac 5500 that I bought in Jan of 02. We had a big ice storm covered most of North and South Carolina. We were out of power for a week. Mine set for a bunch of years I had to plug an electric drill into it and turn it by hand to get it working. I bought a corded pole saw for HF 5 years ago I have the generator tied down on a wagon. If I need to go cut something I just hitch the Wheel Horse to it, got everything I need on the wagon. 1 Share this post Link to post Share on other sites
Jeff-C175 7,202 #9 Posted January 27, 2022 On 1/23/2022 at 4:29 PM, Snoopy11 said: very interested in dating this one... I can't get a definite answer from anyone. I can tell you for certain that if you were interested in dating me... my very definite answer would be OH H377 NO ! Zat definite enough for ya? 2 Share this post Link to post Share on other sites
Lee1977 6,673 #10 Posted January 27, 2022 I believe they are Chinese clones built for BS that might be the reason you can't find any information. The Brigg book is for models 110000, 120000, 200000, 210000. The numbers I have came off the box Model 3BSXS, Type 3422HT, Code 2763 85 there are no number on the engine. 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #11 Posted January 27, 2022 12 hours ago, Jeff-C175 said: I can tell you for certain that if you were interested in dating me... my very definite answer would be OH H377 NO ! Zat definite enough for ya? Oh... my... well... um.... I have never been proposed to before... wow... I am speechless... I guess I will just have to keep trying harder... Don 1 1 Share this post Link to post Share on other sites
