Hi everyone I have been away for a long time, just to much going on. Now my truck is going to start getting fixed up a little at a time. I have a 1978 F250 custom with a 300 six & C6. I was looking in my manual for the timeing it says(" see tune up decal in engine compartment"). Don't they know these decals have a bad habit of disappearing. So does anyone know what the timing for one of these 6 cylinder motors is?

Thank you.

 

Probably 6degBTDC when it was factory-fresh. But to get it right with all the wear on it, use a vacuum gauge. If you want it, I can e-mail you the MityVac manual (OCR is a great thing!), but you have to e-mail me first; I can't attach it to the BBS e-mail service. There's lots of other good info in it, including how the EGR & catalytic converters are supposed to work, and how to tune a carb.

 

i time mine to 10atdc. works nicely for me. smoothe, no back fire got power

 

Sounds like the outer ring of your harmonic balancer has slipped on the rubber isolator, throwing the timing mark off. I can't believe it would produce any power at 10deg AFTER...

 

The only way I know of to see if you balancer slipped is to see if #1 is not at 0 when it says so on the timing marks. Having checked that what other reason would there be that 10 deg btdc works so well? Even though the emission sticker said 6 degrees on the '82 I once owned I would often time it to 10. It always got better gas mileage and felt more responsive.

-Kerry

 

 

Wow, nice to hear about a straight six with a c6 trans, can you send me a pic of carb linkage, I just had trans rebuilt and it wont kick down past 30mph, come to find out my linkage must be missing something, a pic of that linkage set up would greatly help me out if you could

 

That was good.....

Bob

 

Maybe you'll get lucky and the person who posted that info ten years ago will reply, if not, Lokar makes a kickdown cable and linkage kit that works okay.

 

WOW, I just signed up today, just trying to get my feet wet, sorry if I did something wrong, I really don't understand how this works but figured I would give it a try, guess this is not the place for me, sorry to bother you. I will figure how to delete my account, at least my ford loves me.