20 Hp Johnson - That's Why the Compression is So High! pt 9

[@mikedurhan9941]

One thing they emphasized in OMC school was to never swap the crankcase from a different block. They told us the two were matched and swapping them MIGHT work, but would be a heck of a risk. We were taught to think of them as a permanent pair. You could clean and degrease the old one and patch it with Marine Tex. I have seen that done successfully more than once. Thanks for another interesting video.

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in! Not sure if you've been following along, it's hard to keep up with everyone sometimes. Anyway I guess I just got lucky with the ones I've swapped in the past, but this one was already stiff as hell with the original case. Could barely turn it by hand. This motor was in some sort of accident. My guess is the boat and motor were on a trailer when the accident occurred, both show damage on the same side. It had an electric start, that got damaged and they replaced it with a regular bracket, different paint color. I believe they swapped the pull start too, doesn't match anything, looks to new compared the the rest of the powerhead. The prop blades are all dented up on the tips, looks more like they hit the pavement a few times. Anyway, my guess is the whole powerhead is warped from the impact. Is that a possibility? I'm gonna try a different crankshaft to see if it makes any difference. Thanks again !

[@stevengaines1935]

If it works ... IT WORKS. LOL

[@TerryCobb-h4e]

Howww do! Great video. Can't wait for the verdict. Speaking of crankshafts, where do you draw the line on an acceptable used crankshaft? Most I find have minor pitting on bearing surfaces/journals. Ever use one with minor pits here and there on the journals?

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in. Wow haven't thought about that in years, but of course pick the best of what you have as long as your eardrums don't blow out! Hahaha. Check ebay they might have what you're looking for. Thanks again & Stay tuned !

[@__Hoghunter]

Have you checked the needle bearing on the rod caps

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in! No I didn't physically look at the needles but I did check the caps and they do match up properly. Thanks again !

[@danielrobert7181]

If I'm not mistaking, OMC recommends an anaerobic sealant for those crankcase parts. Not sure your Permatex fillls the bill. For that restricted access bolt, I use a socket shortened about half it's original lenght and it allows the use of an articulated gear on that last élucidé bolt.

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@bryanmorrion9503]

You make it sound so easy. Just 10 bolts to get at the crank

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in. Hahaha it is easy and a pain in the azz! Thanks again & Stay tuned !

[@t.j.h2810]

I didn't see you grease the crank journals and bearing before resetting, maybe I missed that. Cross hatching is good to have but not likely to cause that tightness. I still think it's been run hot and the cylinders are not round anymore or oversized rings installed.

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@bginvestor101]

yup, I agree, I would measure diameter on cylinders and rings

[@victorremick9721]

Live And learn. That's why I keep watching

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@markkus1134]

Looks good my 25 evinrude had some loose foam on the hood had to remove it and replaced it got everywhere in the carb too had to remove and clean that out

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@vandos11]

I like that old service book

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@bginvestor101]

are you going to cross-hatch (Honing) ?

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in. I'm thinking I should!

[@cliffpalermo]

Wonder if someone tried to bore it out with a hone, check ring gap at different heights,?

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@artstates960]

You can do it! They tried and failed ,but you are the man for the job. The next step might be some c-4.😅

[@THISOLDOUTBOARD1]

Hahaha! Thanks for tuning in! I'll give it one more shot!

[@VernonTate-y1i]

It’s always something holding you back been there done that great videos and I will see you in the next real life saga 👍🏻🤘🏻

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@stevengaines1935]

Im glad it was nice there today Thursday the 6th it was 💯 °

[@THISOLDOUTBOARD1]

Hey. Yeah nice and hot! Hahaha got some storms passing through right now cooling things down. Thanks again !

[@TheSteelworker]

I usually put a wrench on the tang of the torque wrench at a low setting to get a feel for the click first. It helps and lets you know if you are in the ball park if you don’t know when it was last calibrated. Good video 👍

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in! Yeah that thought did go through my mind. I remember doing something like that years ago. Thanks again !

[@TheSteelworker]

I got that from an “old timer” when I was young-

[@wish2fish37]

I had one of the cheaper auto parts store toque wrenches and it stopped giving me the proper torque after a number of years.Got a new one and definately made a difference in getting accurate torque.

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@brianforaker1160]

Good luck with the other crank. I hope it works out for you

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@melvinrawlings1457]

Man after all this work and time u got invested in this motor. I would of just junked it and get some money for scraping it lol. Anyways if u would do that everytime u get defeated we wouldnt have any content from ya. But great work getting it resolved somewhat lol. Much love to ya from Maryland❤❤❤

[@THISOLDOUTBOARD1]

Hey. Thanks again . Yeah never expected anything like this. Hahaha!

[@leesmith5419]

I knew eventually you would figure it out

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!

[@jasonmoore5685]

Put some binders on 😆

[@THISOLDOUTBOARD1]

Thanks again !

[@mwatkins2464]

You know if it was the crank it wouldn’t pull easily when the plugs were out. I know you looked at some of the exhaust for clogs , I think if you haven’t already you should check the entire exhaust. Check exhaust ports in the block really good. Just seems like it has to be that. Did those motors have some kind of pressure relief valve. I thought I seen one on one of the heads you were comparing to the one on it. Maybe previous owner replaced the head with wrong one. I don’t know, just seems like it has to be exhaust. I’ve went back and watched all the episodes last night on the motor, seemed like I could get more information that way instead of watching just your short videos and waiting a few days to see another one. I wish you would consider making 30 minute videos instead of the 15 minute, we get more out of it. But anyways I enjoy watching you and your antics Take care bud 👍

[@THISOLDOUTBOARD1]

Hey. Yeah checked its clear. No valve to my knowledge. Everything looks original. C U on the next one! Thanks again !

[@TimsWorkshopTJY]

not sure about outboards but if the journals are not true round that the crank sits in after torquing it will be a bear to rotate. So, trying another crank may end up with the same condition. The case probably needs to be line honed but if the journals don't have bearings just metal to metal good luck finding an oversize crank for it.

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in! Yes they have bearings. Thanks again !

[@TimsWorkshopTJY]

Then you can bore and install first over bearings if they have them

[@jasonmoore5685]

I 🐟👌🤓🌀my boat down today would the garden hose👋

[@THISOLDOUTBOARD1]

Thanks again !

[@regio81]

hey there bud , just be careful with that brake cleaner and thos rubber seals and gaskets it will eat and stretch them out pretty much mess them up . just felt like sharing my owne experiences.

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in! Yeah very careful!

[@jasonmoore5685]

Maybe they tried to put the rings on without taking the whole engine apart😅

[@THISOLDOUTBOARD1]

Thanks again !

[@mwatkins2464]

Call me a perv but man I need at least 30 minutes to get my fill of looking at your Johnson 😂😂 I NEED IT MAN!!!

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in! Hahaha perv!

[@jasonmoore5685]

I'll buy it you're sure ha ha can you put the alarm

[@THISOLDOUTBOARD1]

Thanks again !

[@Dan_Akins]

Sometimes you need to over torque your Johnson

[@raycasson1774]

Until it becomes pianful😅

[@raycasson1774]

Painful

[@cliff0dean]

Lubricating your tool with oil help sometimes it helps to prevent over torquing

[@mwatkins2464]

Better to have a female mechanic to torque your Johnson for ya !!!

[@raycasson1774]

@@mwatkins2464 agreed

[@stanwilson8089]

Try your ring gaps

[@THISOLDOUTBOARD1]

Hey. Thanks for tuning in!