Mystery 327 next gen

[vigman]

So to be clear

2.5 inches from the nose of the crank to the faca of the harmonic..or the face of the pully .

or more clearly stated

ya got a 2 1/2 inch deep hole in the front.


Vig?

 

[Rowdy1]

More

From the tip of the crank, not the hole in the center, to the outside edge of the pulley, 2 1/2, or, the distance from the edge of the crank, the balancer and the spaced out pulley. (spaced out, haven't used that term in years:crazy)

 

[vigman]

Harmonica Dliema

So the DUAL pulley assy. is 2 inches thick from mounting surface to final (outside edge) of last pulley.

So the TOTAL offset
from the tip of the crank snout is 3 & 1/4 inches to OUTSIDE FWD edge of the 2nd pulley ( dual setup for Alt & Power steering )


I think something is still amiss....


Vig!

 

[Rowdy1]

Nope

I have only a single pulley. I took a pencil from the edge of the crank, not where the hole is if there were threads, not the center, and measured to the outside edge of the single pulley. that's how I came up with 2 1/2 inches.

 

[vigman]

Upon further rewiew

It's either a DUAL with a spacer in the middle or the middle section was never used.

It could be a triple... A/C was available in 65 right?

So THATS why it sticks out so far......

AND

A stock timing gear is SMALLER than a double roller .25

SO

I think all is well......

Another mystery solved

I got the NEW water pump today.....

and I found a good connection for the factory pullies.


Yet MORE confusion...


Vig!

 

[vigman]

So now the A/C mystery

IF the head has no bolt holes for the A/C bracket... how did it mount in a 65...different heads?

C-60 was the A/C option except for:

L-78 396-427hp

L-84 327 375 fuelie motor


Vig!

 

[vigman]

Double or triple

What da ya think?

 

[vigman]

Another view

I'm leaning triple

 

[Rowdy1]

Triple

Looks like a threefer ta me.

 

[Rowdy1]

.25 Smaller eh?

You have found something out I see. How did you come across this little bit of info may I ask?:confused

 

[Rowdy1]

Nice Avatar

Something you built I presume?

 

[vigman]

The ROBOT told me

So I needed some help..so my son built the Lost in space robot.... to help me compute!

The.25 is the difference between a BONE STOCK single timing chain gear and the double roller.

I NEW SUMPTIN WAS FISHY!




Vig!

 

[vigman]

Which..oh by the way

Really changes NOTHING!

The harmonic is set against the timing gear..

All I have to check now in the runout of the harmonic.....

This gets more fun everyday!

Eh what ...Holmes?


Vig!

 

[Rowdy1]

That Explains It

NOW I know why I had the SAME problem when I put my engine together. Took the timing cover off twice and inspected the hell out of everything, found nothing. How did you figure it out?

 

[vigman]

Logical my dear Watson

If everything fits together... something has been changed...( or over looked )


There are a few components involved I looked at the diff in the harmonic balancer..
No big diff there!

So logically the GEAR was the only thing between those two points....

I had 2 double roller chains & gears... but I was thinking stock... so when I went to get my new water pump... I asked the guy to pull me out a stock cheapo one...

I measured... and raced home.......

AH HAH!

So this is the reason!

So the ONLY way to pull in the harmonic would be to cut the back of the shaft .25 to make up for the THICKER GEAR...

Not worth it...



Vig!

 

[vigman]

It's like motor forensics

You need the shell casing, the slug & the gun


In this case

The Crank
The timing gear
And the harmonic balancer


Vig!

 

[Rowdy1]

Brilliant Deduction

I do remember hearing talk of cutting the gear down or the balancer to make the fit. I too said, "Nah" ain't worth it.

 

[vigman]

Sooooooo

Looks like .25 spacers on the back of the water pump pulley ( and other stuff ).


Yeah this was just NAGGING at me so I HAD to figgure it out.


And all I got from others was ...Naw it's not a problem...dont worry about it...etc!



Vig!

 

[Jack]

/vig ... The.25 is the difference between a BONE STOCK single timing chain gear and the double roller.

Cool analysis of differences in single-double gear !

/vig ... Looks like .25 spacers on the back of the water pump pulley ( and other stuff ).

Moroso, Mr. G., Weiand etc make a shim kit that fits onto the wp hub ... to move the wp pulley out ... has two 1/16" shims & one 1/8" shim (1/4"stacked) ... at less than $8 it's cheaper than the kit to space the whole pump. Slap me silly if not , but isn't the difference between a short & long pump about 1/4"?
JACK:gap

 

[vigman]

Well Jack........... just great

Another unsolved mystery THANKS!

ROTFLMAO!


I'll have to check that out tomorrow.....


Vig!