Re: Gramma's Car: the new project!
 

This is the first time I have see the value of degreeing a cam during installation.

Bummer that the part is not right on specs, but so important to know now!!

Ryan

Re: Gramma's Car: the new project!
 

Same here. All these decades I always just threw the cam in and assumed it would be right. Rather enlightening to see what I have been missing all these years.

Next episode: What actually goes into the hotdogs you eat. Stay tuned! If you dare! [img]<<GRAEMLIN_URL>>/naughty.gif[/img]

Re: Gramma's Car: the new project!
 

I just installed an old double roller setup from a prior engine and it came back with 1 degree BTDC when installed straight up. So it looks like it is the cam that might be slightly off since I got the exact same result with another timing set.

Re: Gramma's Car: the new project!
 

I spoke with the tech people at Cloyes and the 9-3512X9 timing set I ordered from Summit will hopefully do the trick. The nine-position gear has a &quot;+2&quot; positon that is 1/4 the distance from 0 that the &quot;+4&quot; position is on my old gear.

On the Cloyes gear, that &quot;+4&quot; position that is on my old gear is actually stamped as &quot;+8&quot;. He indicated that is how their gears are stamped: with the actual correction factor, so the final result will be two degrees not four.

https://www.yenko.net/ubbthreads/pics...-img_1537a.jpg



Fingers crossed...waiting on the UPS guy now.

Re: Gramma's Car: the new project!
 

Well, here's today's lesson in &quot;You Get What You Pay For&quot;.

The Cloyes true roller set arrived today. Slipped it on in the &quot;+2&quot; position and voila! Perfect 3 degrees BTDC and 109 degrees intake centerline to match the cam card. I was all giddy - I just kept repeating the calculations and spinning the engine and doing it again and again just to make sure I was not hallucinating. I guess there's a reason they charge $100 for the timing set!

Now we can finally get to buttoning up this monstrosity.


https://www.yenko.net/ubbthreads/pics...2-img_1538.jpg

https://www.yenko.net/ubbthreads/pics...3-img_1540.jpg

Re: Gramma's Car: the new project!
 

Love it when a plan comes together ...

Re: Gramma's Car: the new project!
 

I failed to mention it previously but you hit the nail on the head. Pay the extra money for a timing set. The cheaper ones will stretch within minutes of running. Most of the time it wont matter but when building a precision engine every little thing matters.. Glad the math is working out like it should. [img]<<GRAEMLIN_URL>>/beers.gif[/img]

Re: Gramma's Car: the new project!
 

I went through the exact same scenario with my 302.

Re: Gramma's Car: the new project!
 

All buttoned up and ready to go back in!. One of the members at the PY site donated an old set of 1970 chrome valve covers to the project. I cleaned them up and they really woke up the snazzi-ness factor of the engine.

(Ignore the rusty exhaust manifolds. Hopefully any paint on them will burn off in the first minute or two, and I am aiming toward getting some repro D-port Ramair manifolds and a new exhaust system this Winter).

https://www.yenko.net/ubbthreads/pics...1-img_1548.jpg

https://www.yenko.net/ubbthreads/pics...2-img_1549.jpg

Re: Gramma's Car: the new project!
 

Well, it's time to stop for the night. Got everything installed. Still need to tighten the trans and converter bolts, install starter, radiator, fan, PS pump, etc. Got a lot done this afternoon.

https://www.yenko.net/ubbthreads/pics...4-img_1550.jpg

https://www.yenko.net/ubbthreads/pics...5-img_1551.jpg