Re: Cool stuff I learned tonight

[Mark Peele <type53@yahoo.com>]

below is a warning to those of you that think 16V
heads on 8V shortblocks is easy ;->

Brian is da man!

--- Brian Honnold <bhonnold@pac-cap.com> wrote:
> For those of you who care:
> 
> I am currently working through the mechanics of
> fitting a 16V head to an ABA
> "tallblock".  the major obstacle has been the oil
> pump.  Seems that the 16V
> oil pump is quite a bit different than the 8V in the
> way that it is driven.
> The 8V is driven by the distributor which is driven
> by the intermediate
> shaft.  The 16V is driven by a little gear that is
> driven by the
> intermediate shaft.
> 
> Of course, the 8V and 16V intermediate shafts are
> totally different.
> Tonight I swapped the 16V intermediate shaft into
> the ABA block and started
> learning about oil pumps.  My donor block is an 87
> 1.8 16V block so I knew
> right away that it had the cheesy old style oil pump
> with the 30mm gears.
> What it did have was the correct drive gear on the
> top and the correct drive
> gear shaft length.
> 
> So what did I do that is so cool...........
> 
> Took the drive shaft part out of the 8V pump with
> the 36mm gear on the
> bottom, and the 16V drive shaft part with the 30mm
> gear.  It turns out that
> if you put the gear carfully in a vice and bang the
> shit outta the shaft the
> parts separate, leaving you with a perfect 36mm
> drive gear to put on the 16V
> shaft.  I simply pounded the right parts back
> together, put the pump back
> together and it fits.  Just barely clears the end
> cap of the number 4 rod
> bearing though so I may have the shaft clearanced a
> little.  The 8V shaft
> has a small notch machined in it for clearance.
> 
> It is all very tight with no lash gap at all in the
> pump.
> 
> Just thought I'd share.
> 
> Brian Honnold
> '78 thousand MkI parts all over my garage.
> 
> 
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