View Full Version : 92 johnson 175
racerx
05-11-2006, 02:16 AM
i have a 92 johnson 175 that went underwater and is siezed. i figured the engine would need a new powerhead. now, i have heard a few suggestions from have it rebuilt to soak the cylinders in marvel mystery oil. this may sound stupid but, my pressure washer went under also. i pulled the head off the 8 horse honda and poured marvel mystery oil on top of the piston. after a couple days she broke lose. rebuilt carb, new head gasket and now she works fine. i'm no mechanic, but is fixing this engine something i might be able to do myself? if so, where should i start?
reelapeelin
05-11-2006, 08:40 AM
Hope Skools jumps in on this one, but I imagine it depends on how long the motor was under and what was done to it after it came out...if it was drained and oiled after dunking, it might be worthwile, but if corrosion has set in, it's probably junk...might be able to part it out...carbs could be rebuilt...good luck...let us know...
Skools Out
05-11-2006, 09:59 AM
will it turn over? was it drained? Take to plugs out and pour in some marvel mystery oil. take to carbs off and pour some in the intake as well to hopefully save the crank. should some pics of the motor to see how much salt has began to eat.
macojoe
05-11-2006, 10:58 AM
Skools is the one for this one!!
I had a friend that had a motor under water for 2 days and got it working again.
But it took alot of soaking, and new wireing bnut it worked in the end.
Then he sold it ;D
reelapeelin
05-12-2006, 08:26 AM
I've never been ''given the finger'' by a cat...there must be some deeper meaning here ::) ...
Skools Out
05-12-2006, 08:34 AM
yeah lol that cat looks alot like my 18lb cat and he has an attitude about like that.Could becalled a Cattitude lol.
Blue_Runner
05-15-2006, 03:17 PM
Well, I did the marvel mystery thing right after my boat was pulled up from a 3 - 5 hour soaking in fresh water. 70 hp johnson.
If it hasn't been down long, I think if you jump on it as soon as it comes out, and get it going again. If you wait even one day, you are pretty much screwed especially in salt.
If it will turn over, its worth a try though.
Just my .02.
Do a search on marvel and you might see where I posted a while back the exact procedure that I followed to get mine going again.
racerx
05-15-2006, 07:38 PM
not sounding good for the no-bucks fishing team. boat was submerged, while on trailer, in the 35 foot tidal surge that katrina pushed into diamondhead, ms. was prob under for about 1-3 hours, just my best guess. i got the boat at auction couple of weeks ago. so i imagine it hasnt been touched since the storm. about 8-9 months. engine is siezed. and windows were busted out. other than that she got one or two chips in gel-coat. i was hoping engine could be fixed. or at least rebuilt. sounds like new powerhead will be neccessary. 1800 bucks for the rig, guess i shouldnt complain too much
racerx
05-15-2006, 08:37 PM
o.k. guys, couldnt help myself. just went outside and took a close look at my engine. not seeing much external corosion. relays on top of carbs are a little rusty but, they pulled out ez enough. a little corosion on hot wire at selinoid but its the green tighten me up kind, not the white ur screwed kind. pulled the plugs, they were only hand tight, and the plugs had a little rust around the little pole thing. just a little but, that cant be good. lookin through plug hole i could see some corosion. it was the white ur screwed kind. butterflies have a little corosion but, they are opening and closing fine. STUPID QUESTION- back of motor says ois 2000. does that meen motor is 2000 model? hour meter reads 216
Skools Out
05-15-2006, 09:15 PM
give me the model number off the motor on here i'll tell you it's history lol should be on the tilt trim section
macojoe
05-16-2006, 07:25 AM
well I and a friend just took a 1985, Yamaha 40hp, it was all messed up!!
Pulled the plugs, dumped Marvel in there came back 2 days later and tried to start, *Took a min, but that thing spun like a well lubed women!
Pulled the carbs, took bowls off cleaned jets and what not.
Yesterday the thing started and ran like a champ!
But not pumping any water, removed the lower unit and will be replacing this week.
This is on a motor that I said should be trashed!! I gave it no hope what so ever!!
So give it a shot, don't spend anything on it, just oil it up and see what happens!
racerx
05-16-2006, 10:00 PM
good advice maco. nothing to loose. realy dont wanna notch my transom to mount my old 150. planning on getting this 175 running someday soon. even if i have to rebuildit. heres my info schools. mod #- VJ175EXENC ser#- G03064923. cant thank you guys enough. anytime i go to a boat yard i always feel likr a woman at a mechanics shop. not realy sure what there talkin about but, buy the grin on thiere faces, i'm pretty sure i'm getting screwed! glad i found this forum! now i dont feel quite so lost. thanks guys.
phester
05-16-2006, 10:52 PM
very similar to my #'s.... I think it's a 1992 you got there
Skools Out
05-17-2006, 01:09 AM
VJ175EXENC means
V= Boat Builder motor design
J= Johnson
175= Horsepower
E= Electric Start
X= 25" Shaft
EN= Motors Year (E=9, N=2 means 92 yr)
C= Model Run ( C means 3rd run that yr)
racerx
05-18-2006, 10:51 PM
tx scools. with that said, i got a question.i am fairly mechanicaly inclined. built a couple hot rods, swapped a few motors. not much outboard xperience, learnin as i go.roughly, what am i lookin at to find a powerhead and swap them out? dollars and sense? money is tight, new baby. could i rebuild for less bucks?tx bro
Skools Out
05-19-2006, 01:54 AM
you have nothing to loose open it up and send me pics of the insides first actually take the heads off the motor post pics of the cylinders that will help on the cost of a rebuild. look on ebay and find you an OMC or Johnson /Evinrude motor shop manual for your motor find the one for the 1992 motor in your HP it will walk you through all the tear down and rebuild.
Skools Out
05-19-2006, 02:07 AM
here's 2 of the manuals you need. the EN which means 92 is actually the one you need but these should work.
This one is a JOHNSON EVINRUDE FACTORY SERVICE MANUAL EI 60 degree LV MODELS 150 175, the EI means 1991 Manual
http://cgi.ebay.com/ebaymotors/JOHNSON-EVINRUDE-FACTORY-SERVICE-MANUAL-EI-150-175_W0QQitemZ4641275004QQcategoryZ26453QQssPageNam eZWD1VQQrdZ1QQcmdZViewItem
http://www.gatorweb.com/ebay/507950copy2.jpg
This one is a JOHNSON EVINRUDE FACTORY SERVICE MANUAL ET 60 degree LV MODELS 150 150C 175, the ET means 1993 probably better for you than the 1991
http://cgi.ebay.com/ebaymotors/JOHNSON-EVINRUDE-FACTORY-SERVICE-MANUAL-ET-150-175_W0QQitemZ4641284587QQcategoryZ26453QQssPageNam eZWD1VQQrdZ1QQcmdZViewItem
http://www.gatorweb.com/ebay/508286copy2.jpg
Skools Out
05-19-2006, 02:21 AM
yikes here's a 1992 on ebay but it's high, I'd say the 1993 would do just as well buy it at a cheaper price but either way this is the type manual you need.
1992 150 175 HP REAL EVINRUDE JOHNSON EN SERVICE MANUAL *
http://cgi.ebay.com/ebaymotors/1992-150-175-HP-REAL-EVINRUDE-JOHNSON-SERVICE-MANUAL_W0QQcmdZViewItemQQcategoryZ26453QQitemZ4628 797371QQrdZ1
http://i11.ebayimg.com/03/i/03/f6/0c/bb_1_b.JPG
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