The Gman 476 #1 Posted November 22, 2021 Bought a 654 a few years ago, tranny is locked up but I got the engine to run. It smokes and has low compression. Figured would be a good project this winter. Rebuild both the engine and tranny. This what I found. The bore is in spec. so a light hone and valve job with new rings should do the trick. Con rod is toast but I can get a new one on the bay. Problem is I can't get a crank shaft..... Haven't mic'd up the journal yet but if it's good think I can get away with a good polish or am I wasting my time? Thoughts??? The rest of the horse in fair shape 1 Share this post Link to post Share on other sites
ebinmaine 67,593 #2 Posted November 22, 2021 6 horse Tecumseh? Can you post two or three pics of the crankshaft you have? Share this post Link to post Share on other sites
ri702bill 8,328 #3 Posted November 22, 2021 Since you are going to get a new connecting rod anyway, is the journal diameter original or has it been turned down already?? IF it is original AND the scored area is minimal, it may be able to be cut undersize. Time to consult a decent engine machine shop for that one ... if that is what you want to do. Bill 2 Share this post Link to post Share on other sites
Snoopy11 5,714 #4 Posted November 22, 2021 24 minutes ago, The Gman said: problem is I can't get a crank shaft..... Haven't mic'd up the journal yet but if it's good think I can get away with a good polish or am I wasting my time? Soak in muriatic acid, then polish. That crankshaft will clean right up. I have cleaned crankshafts that were... a lot worse than that... You can use a fingernail file on it as well... after soaking... Don 2 Share this post Link to post Share on other sites
Snoopy11 5,714 #5 Posted November 22, 2021 Oh, and don't forget, when you soak it in muriatic acid, it must be neutralized with baking soda. Once all the aluminum is off of the crankshaft, Soak in mixture of ½ cup of baking soda to a quart of water. Pull the crankshaft out of this solution, coat in baking soda, then dip back into baking soda/water solution. Completely dry the crankshaft, and oil it all over with engine oil or molly lube. The journal, in my opinion, should go back to the same size as stock. Wouldn't hurt to check, but in my experience, it will be perfectly fine. Don 1 1 Share this post Link to post Share on other sites
The Gman 476 #6 Posted November 22, 2021 45 minutes ago, ebinmaine said: 6 horse Tecumseh? Can you post two or three pics of the crankshaft you have? Yes it's the h60 model 75063b Here is the crank 1 Share this post Link to post Share on other sites
The Gman 476 #7 Posted November 22, 2021 42 minutes ago, ri702bill said: Since you are going to get a new connecting rod anyway, is the journal diameter original or has it been turned down already?? IF it is original AND the scored area is minimal, it may be able to be cut undersize. Time to consult a decent engine machine shop for that one ... if that is what you want to do. Bill I can get the crank ground but can only find standard con rods. Share this post Link to post Share on other sites
ebinmaine 67,593 #8 Posted November 22, 2021 I have a crankshaft that I couldn't use. Lemme look at it when I get home. Something to do with a step in the shaft my existing one didn't have. 1 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #9 Posted November 22, 2021 WAIT A MINUTE! Eric, you reminded me of something... I think that I still have the crankshaft from the techy that was on HellHorse... I might be willing to give it to you, @The Gman... if you pay for shipping...? Don 1 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #10 Posted November 22, 2021 I am going to go out to the shop and check to see if I still have it... I might have gotten rid of it... Don Share this post Link to post Share on other sites
Snoopy11 5,714 #11 Posted November 22, 2021 Yes sir, I still have it. anyone? It is really in excellent shape... journal is SOOOOO smooth... Thing has been sitting around in a box with some other crankshafts, wrapped in newspaper... I offer it to you, @The Gman... Don 1 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #12 Posted November 22, 2021 By the way, I don't have the Techy engine anymore... and don't want/need the crankshaft... so if you want it, you won't be robbing anything from me... Don 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #13 Posted November 22, 2021 Looks like used cranks for the H60 sell for around 50 bucks on fleabay... Don Share this post Link to post Share on other sites
The Gman 476 #14 Posted November 22, 2021 18 minutes ago, Snoopy11 said: Looks like used cranks for the H60 sell for around 50 bucks on fleabay... Don Hi, I'll take another look and pm my info to you 2 Share this post Link to post Share on other sites
The Gman 476 #15 Posted November 22, 2021 30 minutes ago, Snoopy11 said: By the way, I don't have the Techy engine anymore... and don't want/need the crankshaft... so if you want it, you won't be robbing anything from me... Don Fantastic. Thank you, thank you, Thank you. I'll pm you 1 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #16 Posted November 22, 2021 1 minute ago, The Gman said: Hi, I'll take another look and pm my info to you Cool, yeah, this one isn't going anywhere... so take your time... Don 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #17 Posted November 22, 2021 (edited) Hey @The Gman... I did put the crank on the die grinder... to get it cleaned up... I have it boxed up and ready to ship. Be aware, it is pretty greasy, nice and oily, so don't let it slip out of your hand when you take it out of the box... (latex gloves wouldn't be a bad idea)... Don Edited November 22, 2021 by Snoopy11 2 1 Share this post Link to post Share on other sites
oliver2-44 9,759 #18 Posted November 22, 2021 I have this box of various NOS Tecumseh Parts if any part numbers match what you need, its yours for the cost of shipping. Tecumseh NOS PARTS.ods 1 2 Share this post Link to post Share on other sites
Snoopy11 5,714 #19 Posted November 23, 2021 2 hours ago, oliver2-44 said: I have this box of various NOS Tecumseh Parts if any part numbers match what you need, its yours for the cost of shipping. Tecumseh NOS PARTS.ods 20.9 kB · 3 downloads Hell yeah! You've got parts getting thrown at you from all sides there, @The Gman...! Don Share this post Link to post Share on other sites
The Gman 476 #20 Posted November 23, 2021 16 hours ago, Snoopy11 said: Hell yeah! You've got parts getting thrown at you from all sides there, @The Gman...! Don Fantastic Don, I'll cross-reference my engine to the parts list you sent. Gotta say again. The best forum, the best people anywhere are right here on redsquare. Woo hoo. 2 Share this post Link to post Share on other sites
Snoopy11 5,714 #21 Posted November 23, 2021 47 minutes ago, The Gman said: Fantastic Don, I'll cross-reference my engine to the parts list you sent. Gotta say again. The best forum, the best people anywhere are right here on redsquare. Woo hoo. Yes sir, I learned the same thing when I came to Redsquare. I have gleaned so much information... I really can't express my appreciation to guys here. The only thing I can do is pass on helpful information (particularly about engines), and help when I can. Don 1 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #22 Posted November 23, 2021 Techy H60 Crankshaft boxed up, label taped on, ready to ship. Will be dropped in the mail later today! Don 1 1 Share this post Link to post Share on other sites
Snoopy11 5,714 #23 Posted November 24, 2021 Your crankshaft is in the mail, @The Gman...! I dropped it off at the Fedex in my local office depot... Don 1 Share this post Link to post Share on other sites
