Brian,
You have a good point. I just have a daily driver. It's certainly not a show
car. I significantly reduced the rate of oil leakage by rebuilding the oil
cap. I'll try to bend the tabs on the old one first if the tabs aren't worn
down already. Then buy a new one if it doesn't work well. The engine is still
in good shape according to the compression values and performance. It just
seems funny to me have a new shiny part standing out against the grimy dirty
oily engine. But it will become dull and blend in eventually. The car runs
too good to rebuild the engine. I even leave other TR6's behind when traveling
with the local club shifting at 2500 rpms. Misting is fine with me! I also
have the front timming cover bottom leak to address. I need to put heli-coils
(sp) in the front aluminum block. I did the front oil pan threads in the block
already.
Thanks,
Greg Perry
>Greg,
>
>I know that you like the original cap, and Randall may be right that rings
>or bigger vent are required, but I suggest that you try a cheaper solution
>first.
>
>I had an oil filler cap that gushed a 'stream' of oil down the back of my
>engine block. After a couple of attempt to improve its seal, I picked up a
>chrome oil filler cap at PepBoys. They have them in their Performance
>Truck Section. Its a chrome dome kind of item, and was less than $5. With
>a little tweak on the 'feet' of the cap to provide a tight fit to the
>Valve cover, I got a really good seal. The oil now amounts to a 'misting'
>around the filler hole after several hundred miles, and is totally
>manageable. The chrome cap, though not original, look pretty good -
>certainly better than the old (my old one was not original) cap surrounded
>by oil.
>
>I am gradually addressing sources of oil that my car leaves on the garage
>floor. This was a) the greatest source of oil, and b) the easiest fix. An
>insufficiently tight speedo drive at the gearbox, and a re-tightened
>timing chain cover have helped too.
>
>If this cap works for your car, you'll know if pursuing a better seal with
>the original cap is worthwhile, or maybe just save that for 'show days',
>if that is your thing.
>
>If it doesn't work, it may be the rings as your winter project?
>
>Cheers,
>
>Brian in Valley Forge
>'64 TR4
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