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1958 Johnson 7.5 hp outboard

Discussion Forum at MarineEngine.com » Johnson Evinrude Outboard » Archive through July 18, 2009 » 1958 Johnson 7.5 hp outboard « Previous Next »

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Darren Schroeder
New member
Username: darrens

Post Number: 1
Registered: 07-2009
Posted on Wednesday, July 15, 2009 - 06:39 pm:   Edit Post Delete Post View Post/Check IP

I just recently got this motor off an old chap. I read some posts regarding the bottom end oil. Mine also says Hypoid oil. I understand I am to substitute "HiVis 80/90w". Joe... if you are reading this...you mentioned to look for milky appearances in the oil. When I went to drain the oil it had to be forced out by squirting the new oil in and came out like white grease. Is this the same but prolonged condition or is it possible that the old guy put grease in it? Also I am guessing it is a 1958 by pictures online as I cannot find the model number anywhere.
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Joe Reeves
Senior Member
Username: joereeves

Post Number: 7676
Registered: 02-2001


Posted on Wednesday, July 15, 2009 - 07:56 pm:   Edit Post Delete Post View Post/Check IP

Model number would be (usually) on a small plate on the port transom bracket. Some older models had the plate secured to the middle of the tilt tube/bolt. Also, look on the powerhead for a core plug with the model and serial numbers.

Yea... sounds like he pushed grease in there. The gears make a couple revolutions and are then revolving in air. Not a good idea. Use the HiVis.
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charles harris
Advanced Member
Username: cehmass

Post Number: 590
Registered: 09-2007


Posted on Wednesday, July 15, 2009 - 07:59 pm:   Edit Post Delete Post View Post/Check IP

thats common around here i know of a few guys that have done that /had a 69 40 hp /lower unit full of grease
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Darren Schroeder
New member
Username: darrens

Post Number: 2
Registered: 07-2009
Posted on Thursday, July 16, 2009 - 05:37 pm:   Edit Post Delete Post View Post/Check IP

Thanks a lot for the info guys. I hope the seals are ok cause I'm not sure whereor if I can get parts.
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Joe Reeves
Senior Member
Username: joereeves

Post Number: 7689
Registered: 02-2001


Posted on Thursday, July 16, 2009 - 11:59 pm:   Edit Post Delete Post View Post/Check IP

If what you need can't be located, let us know here. One of us might just have the item left over.

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