The Pontiac OHC Six

[TheSilverBuick]

I am a fan of distributors, oil filters and oil pumps in the front and easy to access

The lifter rattle sound could be cause by a few things, I know the '66 & '67 didn't have a properly sized oil feed to the lash adjusters, in '68 they fixed it.

[Tazracing]

note that these needed valve jobs every 50-60k

good luck.. if you m/s it.. are u ecu'n the spark.. if so. can u axe the dissy and still run the pump

[TheSilverBuick]

The distributor still drives the oil pump per the conventional method. Basically the belt drives a shaft that has a cam lobe for the fuel pump and a gear like the distributor drive gear on a camshaft. Then the distributor runs off the gear and the oil pump off the distributor. Didn't re-invent the wheel there :P But short of finding another way to drive the oil pump, the distributor has to stay, even if only to simply distribute spark.

[dieselgeek]

The distributor still drives the oil pump per the conventional method. Basically the belt drives a shaft that has a cam lobe for the fuel pump and a gear like the distributor drive gear on a camshaft. Then the distributor runs off the gear and the oil pump off the distributor. Didn't re-invent the wheel there :P But short of finding another way to drive the oil pump, the distributor has to stay, even if only to simply distribute spark.

Cut the top off, turn it into a cam position sensor that drives the oil pump.

Although, you have wicked clean access to actually MOUNT a cam position sensor.


Distributors?? where Randal's going, they don't need distributors!! (cue Huey Lewis)

[TheSilverBuick]

The distributor still drives the oil pump per the conventional method. Basically the belt drives a shaft that has a cam lobe for the fuel pump and a gear like the distributor drive gear on a camshaft. Then the distributor runs off the gear and the oil pump off the distributor. Didn't re-invent the wheel there :P But short of finding another way to drive the oil pump, the distributor has to stay, even if only to simply distribute spark.

Cut the top off, turn it into a cam position sensor that drives the oil pump.

Although, you have wicked clean access to actually MOUNT a cam position sensor.


Distributors?? where Randal's going, they don't need distributors!! (cue Huey Lewis)

Here ya go Scott! Found this a while back http://www.groupwhere.net/megasquirt/








I believe the guy is using a wheel on the cam sprocket that was a 60-2 wheel, but ground two more teeth off to make it a 60-4 or rather a 30-2 wheel when split in half to make the Megasquirt think it's a crank trigger.

[dieselgeek]

dang - it's getting hard to be "unique" with Megasquirt anymore.


I remember back in the day - I did the first LS, the first Mod motor, the first DSM 4G63. Nowadays, you better be megasquirting the Space Shuttle if you expect to be the "first" at anything noteworthy. haha.

[TheSilverBuick]

No kidding :P That cam sensor was just there for testing, eventually he moved it to the backside of the cam sprocket so he could maintain the covers over the belt.

[Huskinhano]

So, Randal, what are the plans? It's great to see something different Too bad Detroit didn't spend more attention on the inliners.

[Monk]

I still remember seeing this engine for the first time.......it
was the four barrel version and was pretty damn cool.

They also had a unique sound when cruising.

Good pick Randal

[DanStokes]

Cool thread, Randall. The interesting thing to me is how similar it is to my 250s. I could be wrong but I think my manifolds would fit.

I'll be watching this!
Dan