'73 Oil Change Advice

[Dave Awesome]

1. Aside from the additional oil requirement, any special consideration needed to deal with the oil in the external "trombone" cooler?
2. Will take a look at valve clearance, change S hose, and look at a potentially bad oil level sender. Any other good preventative maintenance measures to be taken while the oil is out?

Thanks

[edmayo]

There is no drain for the front cooler and lines, so therefore no additional oil requirement. I ALWAYS remove the sump plate and check for anything caught in the screen.

[Dave Awesome]

Ed,

Thanks. I guess I was thinking I needed more oil based capacity in the manual, but if it doesn't come out it doesn't need to go in. I should have read the note. I will plan to take the sump plate off as well. I know there is a lot of discussion on this topic, but I would really like to know specifically your valve cover gasket of choice. Really appreciate your time and advice.

[Chris Pomares]

If your rear to front lines are original the info is correct. If aftermarket like Elephant Racing lines then there is a Schrader valve to blow out most, not all of the oil up front. With duel triple loop trombones I run 14 quarts. High quality oil changes cost a little more than when I ran a 4 quart 616 912 engine.
As to which oil is best, I don't think that one will ever be settled.

[edmayo]

Ed,

Thanks. I guess I was thinking I needed more oil based capacity in the manual, but if it doesn't come out it doesn't need to go in. I should have read the note. I will plan to take the sump plate off as well. I know there is a lot of discussion on this topic, but I would really like to know specifically your valve cover gasket of choice. Really appreciate your time and advice.

We use the normal graphite ones for customer cars, but I do have the silicone ones on one of my cars. They seem to work well, they've survived several cleanings and reinstalls so far.

[Jerry L]

With the car being new to you, I would also stick your finger up into the oil tank drain and see what sediment you "may" find in there. may be a good spot for some additional cleaning. What you cant get out with your finger but can feel it try a bent wire to dig around and some brake clean sprayed in thru the drain hole let flow into your drain pan then wipe with a piece of lint free cloth. May be surprising what is living in there.
Regards