Timing Chain

[bambamshere]

When the dots line up it is pointing at #6 thought when the points lined up it was supposed to be pointing at #1. It is at #1 not tdc and the top gear dot is on top not the bottom.

[49roadster]

Think 720 not 360.

 

[bambamshere]

37 minutes ago, 49roadster said:

Think 720 not 360.

 

Sorry not sure what you mean 

[Dodgeb4ya]

Oh Gawd!

[maok]

If you look at the timing gears, the Cam gear has twice the gears than the crank gear. So the crank gear turns two times for one turn of the Cam gear. Hence 720

[Don Coatney]

10 hours ago, bambamshere said:

If you look at the dot on the bigger pulley it is on top in the picture. Not sure if some one installed wrong or what because when they are together the the distributor is pointing to Number 6 cylinder. 

 

Matching the dots has nothing to do with where the distributor rotor is pointing. That is a function of correctly indexing the oil pump.

[Dave72dt]

If the dots line up, with the dot on the cam gear either at the top or bottom, that is good, as long as the dot on the crank gear is where it's supposed to be. That means the cam and the crank are correctly timed.  The camshaft then drives the oil pump[ which needs to be indexed to the cam so the drive slot for the dist drive locates the rotor in the correct position.  At that point you need to have the engine at TDC and determine which cylinder is at TDC compression, # 1or #6 and install the dist accordingly.  If it runs and the # 1 wire is at 7 o'clock or the #6 wire is at 1 o'clock, It's probably correct.   If so, leave it alone.

[bambamshere]

The reason for this all is. One of the gaskets is leaking and where the crank seal goes someone took the pulley of at somepoint in its time. and didn't use a puller. Now the hole is all bent up and leaking. Seal is fine just opening on the pan. 

 

Other reason is when you time this truck. The distributor is fully retarded when the truck is timed. I might be able to move it about a hair and even that might be to big. 

 

Thanks

[Dave72dt]

The dist. should have 2 adjustment locations.  If you've used them both up, chances are the oil pump is indexed 1 tooth off.  As for the leak, sounds like you need a replacement cover and/or pan.

[bambamshere]

Does anyone know where you can find a Timing chain cover or a oil pan for a 251 or 237 

[Plymouthy Adams]

I ask forgiveness but some things are just to inviting...…….they usually bolted to the front and bottom of the block...….in all seriousness, posting a wanted ad is free here and could be valuable asset in your search