|
Evinrude 1987 140 v4 Rebuild
Previously I have posted the failure of my power head and have since replace it with a rebuild which by the way is working great.
I traded two older motors at the time with PowerHead Exchange out of Tampa and kept my blown power-head with this project in mind. I will start rebuilding/assembly it from prop up. Trust me this is going to be long term project or if the 49ers sucks on Sundays then it will progress faster. The objective is to apply what I have learned and hopefully own a engine I can be proud of, I have done my home work in regards to acquiring the parts and everything plus sum for this project. This weekend I hit jackpot with an identical year/make/model motor minus power head (blown) it is in very good condition. I will post as I go along so far the power head was in a machine shop hone and corrected a single out of round cylinder. All cylinders are bored .30 over. I will be experimenting with soda/media blasting starting with the Block and the rest of the parts, I opt out the acid bath method since I will still need to clean the rest of the parts for painting. I am open for ideas on the painting and colors for both engine, LU, and cowling's. If I bore anyone to death please pardon me, this for me personally it is a challenge whilst I know I am not re-inventing the wheel I am excited for now who knows down the road ? Here she is all blown up! http://i527.photobucket.com/albums/c...e/DSCF0011.jpg http://i527.photobucket.com/albums/c...e/DSCF0014.jpg http://i527.photobucket.com/albums/c...e/DSCF0015.jpg http://i527.photobucket.com/albums/c...e/DSCF0006.jpg Same Block re-bore and so call clean I will soda blast it http://i527.photobucket.com/albums/c...g/DSCF0126.jpg http://i527.photobucket.com/albums/c...g/DSCF0134.jpg Lots of corrosion around the outer sleeves or water way .. http://i527.photobucket.com/albums/c...g/DSCF0135.jpg http://i527.photobucket.com/albums/c...g/DSCF0136.jpg http://i527.photobucket.com/albums/c...g/DSCF0172.jpg The engine shop shave both heads one is perfect one is like below I will not use this since I now have one from the donor motor in excellent condition http://i527.photobucket.com/albums/c...g/DSCF0175.jpg Perfect http://i527.photobucket.com/albums/c...ng/perfect.jpg Wish me luck.. |
I wish I had the time, I would rebuild my Evinrude 150.
Keep this thread going, maybe it will inspire me to shift my priorities. |
Good luck NYMack. As far as painting and colors, I would go with with the original 1987 color scheme and cowling stickers.
|
Quote:
|
Definately get that block decked. I can see where it would blow out a head gasket on 1 & 3. Carbs will be the critical part of any rebuild as they seem to cause most powerheads to fail.
|
Quote:
Thanks Ferm |
decked means where the heads bolt on have the block and cylinders cut down to get a better surface for the head gaskets to seal too. with your heads shaved it will run hot and plus eat starters due to raised compression. may be really hard to start when motor is warm due to the starter may not be able to turn over the motor. they do make a cylinder repair ring where you cut down the out block casting on the cylinder sleeves and you insert these rings so that your head gaskets will seal correctly. but you need new or good used heads. sell those to some poor other boater with low compression worn motor.
|
Quote:
|
That pitting around the sleeves on #1 and #3 can cause head gaskets to blow out like no tommorrow. When I say decked I prefer the method where they use the big sheet of sandpaper on a granite top. This way you only take off what is needed, most of the time it's less than .002 thousandths to clean one up this way. And the V-4 loopers have REALLY high compression to begin with, roughly 140-145 on a good healthy one. Mine pops off at 155 and it is a B!TCH to start up, it takes 2 good batteries to kick it over with 2 guage battery cables. But it will SCREAM on the top end:party:. Like I said earlier though, the carbs will drive you nuts most likely. Most everybody I've talked to has had problems after building one of these V-4 loopers and had to re-jet the carbs to fatten em up on the main and intermediate, but lean it out at idle.
|
Good luck on the project.
|
OMC used to offer a thicker than standard head gasket for some of their motors for comercial use or when using lower octane fuel, I don't know if they are still available, but it would be what you need after decking the block.
|
good for you Mack, I would love to have the time and smarts to do that. Good luck and I hope it goes well for you. At the very least you will have learned a lot more than most of us will have ever learned.
|
Update
Thanks for the advise and the words of encouragements, You Guy's hit exactly on two issues I was having second thoughts about, one I can easily address just use the new heads I have, the other in regards to the corrosion around the sleeves???
My plans for now is to dissemble the LU and Mid only to the point where I will get to the critical bolts to make sure they are all in removable condition for future access etc, I don't want surprises later on. It will also allow me to replace the impeller and inspect the water pump area not to mentioned drain the LU oil and inspection for contamination or metal shavings. I will not use the tilt and trim off this motor, since I have one in immaculate condition with new motor, the one on here shows some corrosion. I have since loosen the bolts on the mid and LU for soda blasting, I was soaking the bolts with PB Blaster since Sunday they are all loosen up now for removal, my tree shade mechanic last year worked on my old LU broke a number of bolts. See it pays to do this crap yourself. Rocking the bolts back and forth never force it or make them overheat trust me they were tough removing but I score :) Tip: Be sure NEVER to have the PB blaster come in contact with any rubber example the end caps of the tilt and trim it will ruin the seals. The installation of these bolts I will coat each one with High Temp Gasket Sealer so they can never freeze up, grease will not work here. One big word Electrolysis one simple fix! I have tried this on my propeller shaft and inspected it after a year slid off like poop out a goose. Sorry the high resolution photos may shift the view off I will re-adjust the camera next time Photos of Mid/LU Notice the paint job ? Not good at all painted over the sealant and all. http://i527.photobucket.com/albums/c...tion/Post1.jpg http://i527.photobucket.com/albums/c...tion/Post2.jpg http://i527.photobucket.com/albums/c...tion/post3.jpg http://i527.photobucket.com/albums/c...tion/post4.jpg http://i527.photobucket.com/albums/c...tion/post5.jpg http://i527.photobucket.com/albums/c...tion/post6.jpg http://i527.photobucket.com/albums/c...tion/post7.jpg http://i527.photobucket.com/albums/c...tion/post8.jpg http://i527.photobucket.com/albums/c...tion/post9.jpg |
Ooh, you got one of them rare to find 25" ones that isn't rotted out yet. I've been looking for one of them for awhile now but they are all rotted out that I have found.
|
What do you mean rotted out, from the inside Ferm, the lower unit rots from the inside?
|
Quote:
"Parting out a 1987 Evinrude 140 Looper (E140TXCUA). Starter, carbs, electrical parts, crank, complete mid & lower unit with working PTT and transom bracket, OMC side control with wire harness and new 18***8217; control cables, OMC OEM factory manual, cowl & mid cowl, plus much more" Guy told me he is parting out a good motor (blown power head) I negotiate him down to 400.00 and snag it on Black Friday. I now own the only two models 140 v4 Evinrude made in 87 the 25" and 20" looks like I be stuck in the 80's for a while :) |
Quote:
|
Guys,
Below is a thought process I read on another blog strong believer in it. "Having to rebuild a engine is fixing the symptoms of a failure, so one MUST find the reason for the failure and fix it, if not plan on fixing again" With that said I will post the various things I find along the way some Evinrude CSI work :) if you will. I may or may not find it or should be too concern because the baby will be built with care and love with a fine tooth comb, any future failure is mine to own, the buck stops here with me. At the time of purchase the previous owner give me and I quote "Here is new set of plugs for the engine" Trouble is this kind of plugs does NOT match the Evinrude plug recommend charts? QL77YC Funny I found on the Internet this plug matches a Mercury motor, which I saw in his yard mounted on 18' CC Wellcraft. I also observe some scaring on the connecting rod journal on the #3 cylinder ? Idle jets were jetted up .20 (Factory is .16) I did not check high speed as yet they should be .64 stock |
Quote:
I have a 20" on the V currently and I did cut down the transom as you remember during the rebuild for the current motor, the 25 " is perfect for you and your 20" floats my boat... |
I didn't know that the v4's had the Bridgeport exhaust too in 86/87. Very cool motor . . . Even the rod slots look nice on that block . . . is that stock or did someone clean them up?
|
Quote:
|
All of the V4 loopers have the bridgeport exhaust IIRC, the V-6's are the ones that changed in 88 and then in 92 added the finger ports. The only real change in the V-4's was in 88 going to larger 3.625 bore from the 3.5" bore of earlier years. And remember NYMACK, I'm not that far away and I have a pretty intimate knowledge of the V-4 loopers.
|
Quote:
|
Quote:
http://lakeland.craigslist.org/boa/1475276327.html |
i have a pair of 1990 good 140 counters motors with 25" midsections i bought from BR yrs ago. mine have the 35 amp charging upgrade plus the larger V6 size foot.
|
I'm gonna have to hold off right now. I would really like to get it, but the wife is wanting a bigger boat now. She wants one where she doesn't have to sit on a bucket to go to the bathroom.
|
Dam FERM, I wish my wife would say that, I usually get "you are always buying something for that boat and not the house"
|
Quote:
|
Anyone with blasting experience ? Will this El Cheapo work ?
http://www.harborfreight.com/cpi/cta...emnumber=95793 |
Crank Clean Up
I am not going to use the the Crank from my old power head since it clearly shows a flaw on one of the journals.
I purchase a replacement crank from Ebay not knowing I will pick up an entire engine so I now have two crank on going back on Ebay. I have since clean up my crank and lube it with 2 stroke oil and wrap it in plastic until I am ready for it. Here are the before and after photos (crank inserted on the mid-section during the clean up) Old crank now obsolete see #3 ? http://i527.photobucket.com/albums/c...amageCrank.jpg Crank from ebay not cleaned. http://i527.photobucket.com/albums/c.../CrankEbay.jpg Nice and clean http://i527.photobucket.com/albums/c...ding/Clean.jpg http://i527.photobucket.com/albums/c...ing/clean2.jpg http://i527.photobucket.com/albums/c...ing/clean3.jpg http://i527.photobucket.com/albums/c...ntonspline.jpg Let me know if I am boring you Guys with this rebuild.. |
Keep the posts coming NY, Very informative.
|
Update
The entire MID,LU,T&T is off to the media blasting shop.
|
These posts are not boring us at all. They do, however, make me feel inadequate. I could not even begin to do the stuff you are doing to the motor. Nice work.
|
Thanks Guys
Some updates, I successfully have the motor completely in pieces, I was going to experiment with the Media/Soda blasting myself. I did not it a messy job period, I dropped the parts off to shop last week, decided to use a new shop because of a cheaper price, huge mistake the new shop did not do a professional job period. I will never use him again.
I will post pictures clearly showing the paint he miss, parts not cleaned properly. I will have to finish the job myself, the rest of the parts are off to my previously used shop which I am very happy using in the past, but a little more expensive. Cheaper is not always better I guess ... I am educating myself on primers and paints and found a wonderful web site which in my opinion is very intuitive for a rookie like me. http://www.supermarinepaint.com |
Just remember to use a ZINC CHROMATE or ZINCROM(the green colored stuff) etching primer on the lower unit and mid section, or anything in direct saltwater contact. The etching primer will help the paint adhere MUCh better than most any other primer can. And do not get it inside of the lower unit where the oil is or in the crankcase. It is an excellent primer, but oil will take it right off. I used it on a propshaft support before and got it on the inside portion of it and fluid turned to milk after just a few days. The primer came off and emulsified in the gear oil. Flushed it out and all was well afterwards. I figure if the stuff is good enough for aviation and is mandated by the FAA, then it must be good enough for a boat.
|
Thanks Ferm..
|
Update
Media Blasting I paid for sucks! I will clean up all the parts myself so much for me being lazy, no luck paying to get stuff done I guess.
I shot the cowling and lower pans last weekend with INTERLUX Brightside One-Part Polyurethane with Teflon from West Marine. One amazing paint in my opinion, so good I will mount this on my Boat and pull the ones on my running engine. I will post pictures later as I progress along. I took a self impose break from all this stuff and planted a garden which was no fun but relaxing. |
I found a replacement power head (1/2) on Ebay minus all the corrosion show previously here are the new photos of the power assembled with all sorts of old bolts to protect the treads, Its now in my original media blasting shop then I will have each cylinder honed.
As for the MID and LU they are all zinc primed ready to paint. Old Block http://i822.photobucket.com/albums/z...h_DSCF0148.jpg New Block http://i822.photobucket.com/albums/z...h_DSCF0028.jpg http://i822.photobucket.com/albums/z...DSCF0017-1.jpg http://i822.photobucket.com/albums/z...h_DSCF0007.jpg http://i822.photobucket.com/albums/z...h_DSCF0024.jpg |
All primed
I now need to wait 7 days before final coat of Paint
http://i822.photobucket.com/albums/z...h_DSCF0023.jpg http://i822.photobucket.com/albums/z...h_DSCF0022.jpg http://i822.photobucket.com/albums/z...h_DSCF0021.jpg http://i822.photobucket.com/albums/z...h_DSCF0020.jpg http://i822.photobucket.com/albums/z...h_DSCF0019.jpg http://i822.photobucket.com/albums/z...h_DSCF0018.jpg http://i822.photobucket.com/albums/z...h_DSCF0017.jpg http://i822.photobucket.com/albums/z...h_DSCF0016.jpg http://i822.photobucket.com/albums/z...h_DSCF0015.jpg http://i822.photobucket.com/albums/z...h_DSCF0014.jpg http://i822.photobucket.com/albums/z...h_DSCF0013.jpg http://i822.photobucket.com/albums/z...h_DSCF0012.jpg |
| All times are GMT -5. The time now is 09:01 PM. |
Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.