Question about 1985 Ford F150

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Oil Leak Valve Cover

I have a recently purchased 1985 Ford F150 standard V8 that has leak on or around the passenger side valve cover area that drips down and hits the exhaust part that comes right out of the engine and causes smoke. I checked the plug (freeze??) and it looked to be intact but I am not 100% I was looking at the right part. Being that I have limited skills with disassembling engines how hard would it be to replace the valve covers and/or how would one go about it? 2nd Could someone provide a picture of a freeze plug as it sits in a 1985 Ford F150?

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  • genius117 Feb 15, 2009

    Thank you. Looking at the engine it looks as if I might have to remove some items from the top of the engine in order to get to some of the bolts. Is there a special tool or wrench I should have to not have to remove stuff? You make it sound simple, is there any sealant that I use to secure the gasket . . . like similar to plumbers putty or something? What is pinching a gasket?

  • genius117 Feb 16, 2009

    Its a fuel injected engine and the fuel injected thing (plenum??) sits on top on the engine. I dont thing I will be able to get the valve covers off without taking it off. Is taking it off hard?

  • genius117 Feb 21, 2009

    Ok, so I spent the better part of today installing the new valve cover gaskets and a new "plenum" gasket. The one leak has turned into more then one leak. I just used the gasket and the valve cover with no sealer or other such thing. Should I use a product to seal the gasket to the valve cover before I rebolt it to the engine? Also the valve covers have room for the tabs from the gaskets to be placed in but only on one side. the other side has no tabs thereby allowing the gasket to move about while trying to bolt it on. I feel that were I to use a product to "stick" the gasket to the valve cover I would have a better chance of getting a leak free seal but I defer to the more knowledgeable. Also how tight does one tighten the bolts? I know they have torque specs but I was told to just tighten till it gets tight and then go another quarter turn. I hope you can help.



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If it is leaking around the valve cover then that is the problem. Just remove the bolts from the valve cover in a cross pattern (ex. back right - front left and go back and foward and work till you make it to the middle. Go purcahse a valve gasket for both right and left and replace them. Tighten in the same cross pattern and be careful no to pinch the gasket.

Posted on Feb 15, 2009

  • James Bradburn
    James Bradburn Feb 15, 2009

    do not use sealant or gasket maker. The bolts will eather be deep socket or just regular.

    With that year it shouldnt be that bad. And remeber to pay attention to where you remove things. If you feel that you may for get then you can write it in a note book. But to replace valve gasket in that year should be a breeze.

    Also if you have to take spark plug wires loose to get the valve cover off just label the wire to the right plug.

  • James Bradburn
    James Bradburn Feb 17, 2009

    No it consists of about 4 bolts, about 1 wireing harnes, and sometime vacuum lines. Just becarefull not to rip the gasket that is on the throttle body. And do not bump it around hard eather.



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