Question:

Oil leak Ford F250 1985

by Guest5615 | 12 years, 9 month(s) ago

Hi, I just purchased a 1985 4 speed manual, straight 6, F250 and Im learning how to work on it myself. I have a couple questions.

1) I have an oil leak that I originally thought was coming from a bad gaskett. I replaced the valve cover gaskett and the gaskett on the side of the engine just below the spark plugs (dont know what its called...maybe an exhuast manifold gaskett)? I also replaced the grommets that the pcv valves connect to but there seems to still be some oil coming from somewhere in that area..What do I do next?

2)What is the big white thing that looks like a can comming out from that side of the engine? Is it the oil filter?

3) Sometimes when i start the engine I have to give it a little gas to keep it going before it will start idiling on its own? Why is this and is this something I can adjust? If so how?

4)There seems to be a tapping pattern when the engine is running. Its got a rhythm to it but doesnt seem to effect how the engine runs. Could it be a bad spark plug?

I appreciate all of your help.

Tags: 1985, F250, ford, leak, oil

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Guest1603

1. OIL LEAKS

Is the oil leaking "motor oil" or "transmission fluid"?  Your leak might be power steering fluid or brake fluid.

Check the valve cover gaskets.  Check the seal on the oil filter. If motor oil is leaking, it could even be a failed crankshaft seal or timing chain cover.

2. THE BIG WHITE CAN THING

Is most likely the oil filter.

3. POOR IDLE

Could be any number of things including, sticking valves, dirty throttle body, hanging choke, dirty fuel filter or weak fuel pump.  Sounds like a choke problem.

4. TAPPING PATTERN

You've described the "tapping" as rythmic.  Does the tapping speed up along with the engine speed?  The tapping could be a bad valve tappet or a loose rod bearing on your crankshaft. When a rod bearing begins to wear, it does not necessarily change the engine performance.  If it is a rod bearing going out, you would need to change that very soon as a failed rod bearing could cause the engine to throw a rod through the oil pan or the head.  Might even bend or break the crankshaft.  The rod bearings are accessible by removing the oil pan and exposing the crankshaft.  They are reasonably easy to replace, just a really messy job.
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