Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

[MadeCoolCom]

I notice a little water in the bottom cylinder <br />actually I seen some drops of water on the spark plug to the bottom clyinder. So I will start with putting a new head gasket on. This is how I will do it (just take off the head which there seems to be two heads covers and 2 gasket)<br /> I plan just scraping off the old gasket and making sure clean any idea what is the best type of sand paper to use to clean off the head with I thinking of using wet sand paper about 1000 the fine stuff I think that is about the right weight, But what is the right type material that the sand paper needs to be will be usefull info. When every thing is clean I will put back to geather. If this is not the right way please let me know the right way or the best way. Anyone Help with The best way will be usefull info and what not to do will also be usefull info. Thanks

 

[oldboat1]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

probably a little overkill with all the sanding you describe. Make sure the surfaces are clean and smooth, and use a little gasket sealer (also keeps the gasket in place while reassembling).

 

[rodbolt]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

Hello<br /> I use the 3M pads that are mounted on a 1/4 inch arbor. I would not use sandpaper on the block surface as odds are you will get the fine abrasive all in the cylinder and intake ports. the 3M pads dont bother the aluminium and will rip the gasket off quickly. next check the surface of the head for any warpage.if more than .004 surface the head. dont use aftermarket headgaskets in saltwater. I have had some fail after a few years. seems the steel just disintergrated.the cover holds the thermostat and ther pressure valve. replace the t stat and the valve grommet.<br /> use OMC gasket maker or quicksilver perfect seal on all gasket surfaces. I clean my surfaces with acetone or rubbing alchohol before I apply sealant. do not use silicone. it will leak again<br />put it all back together and go fishing . its easier to assemble the cover to the head while the head is on the bench. gooid luck and keep posting

 

[MadeCoolCom]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

rodbolt<br />That is some handy information you gave me I going ask the parts place, for the 3M pads and some OMC gasket maker or quicksilver perfect seal and about the quality of the head gasket they are going order for me. I trying to avoid having to do this job twice and it really helps me to get some good advice. Instead of just jumping into something especially like this. Thanks for the info, I will try to post a message again when I get the new head gasket on to let you all know how the replacement went.

 

[MadeCoolCom]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

I just want to know is there a gasket sealant you add to the head gasket it self can you put gasket sealant on it. You know mean I mean the gasket to the head that will seal off the cylinder compression. If you add a gasket sealant to that than I never new you could. If you can put a sealant on that gasket please let me know. Or even a gasket adhesive. If I don't here from a response than I will use just the gasket on the head that covers the cylinder that seals the compression. Anyway I took off the head today and think I will just replace the head gasket for the compression it was not as hard as I thought. I be back running in know time.

 

[rodbolt]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

Hello<br /> If you can find the perfect seal or omc gasket sealer it is a brown liquid paint on type sealant. you can paint the entire gasket with it and be done. the key here is to insure the head and block surfaces are clean. the pressure valve gromet will bite you if you dont maintain it.that is why I added that info. someting caused the gasket to fail. usually its a overheating condition. go on down to the nearest jonnyrude dealer and buy all the parts, head gasket,cover gasket t-stat and grommet and a small can of gasket sealer. all told should be less than 40 dollars.<br /> Good Luck and keep posting

 

[MadeCoolCom]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

I been looking at Gasket sealant and seen some that will withstand 5000 PSI and take up 500 degree heat maybe I use one of them. Well they sold me a after market head gasket even after I told I need a original replacement. But have not open it up yet. Plan on taking it back. To top it off they charged me $27.00 plus tax. I even told them I did want after market gasket . Well that’s business most people will accept it and that how they run there business. I thinking about checking Napa about the head gasket see if they have one I trust Napa parts. Also seems that West Marine has a head Gasket after market made by Seria it only $19.00.<br />Well my head is warped looks close to about .005 thousands but I lost my filler gauge but it looks like .005 got Make it right to much deviance in it for me. God only know how it sealed anyway. Well I get put to gather soon enough when I get the parts I want. I didn’t see any corrosion in the cylinder or any water either.

 

[rodbolt]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

Hello<br /> good morning<br /> no need to get so fancy with the sealant. call or drive to the nearest dealer with your engine model number, ask for a water jacket cover gasket, a head gasket a t-stat and a pressure valve gromet. for only .005 I would use piece of 120 grit sand or garnet paper and a sheet of glass to smooth it. a floor mounted belt sander with 120 is good also just make sure the belt is wider than the head.buy a small can of OMC gasket sealer while your at the dealer and everyone goes home happy <br /> good luck and keep posting

 

[Joe Reeves]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

(Gasket Sealers)<br />(Usually available at any reliable automotive parts type store)<br />(J. Reeves)<br /><br />Do Not use any type of sealer on outboard carburetor or intake manifold gaskets as this would cause blockage of various fuel/air passageways. Also, there are new type gaskets, including head gaskets , which are used through out the engines that are coated with a substance that gives a shinny appearance to them. These gaskets are coated with a self sealer and are to be installed as is.... no sealers! Older style head and fuel related gaskets that are not coated with this substance are to be simply coated with oil.... nothing else.<br /> <br />All other gaskets (hopefully I've not overlooked anything above) should be coated with Gasket Sealer (the type that comes in a can that has a small brush in its screw off cap). This also pertains to some water pump installations that use a gasket between the plate and the lower unit housing.<br /> <br />Marprox Sealer 1000 or OMC Adhesive or Boat Armor Sealer 1000 (same substance) should be used on any metal to metal or metal to plastic surface (such as impeller hsg to plate) to eliminate air leaks. It should also be used on the Spaghetti tubing that is used on many powerhead crankcase halves, lower unit skegs, etc. I have found that this substance works quite well on various "O" Rings such as what are found on lower unit carrier and upper driveshaft bearing housings (Note that this substance is obviously not to be used on all "O" Rings).<br /> <br />DO NOT use any sealer on the large "O" Rings that are used on the upper and lower crankcase heads (The housing/heads that slide over the top and bottom of the crankshaft). On those "O" Rings, use only a coating of grease.<br /> <br />The exception of surface to surface contacts pertains to the later model matching crankcase (block) halves (which does not incorporate spaghetti tubing) which call for "Gel-Seal", or any other surface that calls for Gel-Seal. This substance seals in the absense of air, and if called for, must be used. One other form of Gel Seal that can be substituted is "Loctite #518". Nothing else that I know of will do!<br /><br />I advise against using silicone or permatex on a outboard engine. It simply will not function properly. The exception to this (as per OMC's recommendation), is to use the black Permatex (heavily) on the gasket 306242 which seperates the inner exhaust tube from the exhaust housing on the 1959 35hp and 1960 to 1970 40hp OMC outboards.

 

[MadeCoolCom]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

Rodbolt<br /> I Used them 3M pads I like them because they won’t harm the aluminum That helped me out. Also the info on getting the head gasket from the dealer that helped me out also. Yep used 140 I think was or close to it to level out the head and using a glass door for the shelf was exactly what I intend to use anyway. I didn’t use wet sand paper because I thought the practical might get in the aluminum I sure about.<br /> Yep just like I used to do in 8 Grade small mechanical class use sand paper to get the head right. Oh yea got a great head gasket at the dealer I mean so much better that what I had I took the other one back this one you don’t put gasket sealer on at all and it is stamped right on it don’t use gasket sealant and this gasket was the same price it’s a good. Well got back together and running good but the real test will be out in the water and how it holds in a year or 2. I think I got right but I could of made a mistake but the main thing is I gave some thought. Oh yea replaced those water jacket cover bolts with some stainless steal one. I use the same head bolt they were ok. I tell it does start up better I mean right away so maybe it will run better. I think it will be a improvement to my engine.

 

[MadeCoolCom]

Re: Evinrude 1980 60 HP 2 cylinders Info on Replace head gasket

Took out for test in the water today. Runs faster seems like to me ( Captain warp engine are back on line). But I only getting about 2 1/2 to 3 miles per gallon status mile the way I figure and about anywhere in the range of about 15 to 19 MPH. This boat has a thick heavy haul so that why I only get that. I would say about 5 to 6 status miles in about 20 to 22 minutes. Then again I not running a straight line I just looking at a map and that with a whole lot of turns and stuff so give or take a mile or 2 and so for fourth on the time a minute or 2 .