[NoVa-Corvairs] Look Ma-No Head!

Sat Mar 11 13:40:46 EST 2017

Sometimes a right front wheel locking under hard braking is
a sign of the left front being slow to apply.  The rubber
hoses at the wheel can swell internally and restrict the
fluid flow; allowing the brake to work, but not quickly.
 This situation would show up as a pull to the right under
normal braking.

I've also seen an issue with a grooved or ridged drum and
matching counterpart on the brake shoe.  Under normal
braking they fit together, but in a hard stop they may not
align and then the shoe bites.

Al

Al

On Sat, 11 Mar 2017 08:30:42 -0500
 Dan Weiss via Novacc-list <novacc-list at corvair.org> wrote:
> Bryan,
> 
> Thinking to move onto the right side and get both done. 
> Whatever I don't accomplish during the week, we could do
> at the meeting.
> 
> It would be good to have all the rockers and rollers
> examined to see if I need to replace any.
> 
> We could look at my braking system.  Under panic stops
> the right front usually locks.  Nothing has fixed that. 
> The only line that has not been replaced is the line to
> that wheel.
> 
> It would be helpful to have input as to what else I
> should consider doing given  the open state of the engine
> compartment.
> 
> Also, everyone's suggestion as to a parts list I should
> get for the assembly would be helpful.
> 
> I plan to send the heads to David at Stinger Motorsports
> in Roanoke, so I probably won't be able to install them 
> til midApril.
> 
> Plus , there's always pinball!
> 
> But honestly, if you think that the group's time would be
> better served helping another since I already got the
> head out,
> You have my support surely.
> 
> Dan
> 
> Sent from my Verizon Wireless 4G LTE Droid
> On Mar 10, 2017 8:44 PM, Bryan Blackwell
> <bryan at skiblack.com> wrote:
> >
> > Good job - it also looks like the head is repairable
> and you have the pop up pistons I was thinking of. 
> >
> > So now that it's out, what's the project for the
> meeting?  Think you'll have it back in time to assemble? 
> >
> > --Bryan 
> >
> > > On Mar 10, 2017, at 6:49 PM, Dan Weiss via
> Novacc-list <novacc-list at corvair.org> wrote: 
> > > 
> > > <head out.jpg> 
> > > 
> > > 
> > > 
> > > Head is out!  Thankful that I did not have to drill
> or chisel any of the head nuts.  All came off intact with
> vice grips on the studs and PB Blaster. Used two breaker
> bars on the vice grips to close them with very tight grip
> on the studs. 
> > > 
> > > <head.jpg> 
> > > 
> > > 
> > > 
> > > 
> > > Here is the head.  The dropped seat is evident under
> the exhaust valve.  
> > > <valve close up.jpg> 
> > > 
> > > Looks like it stayed intact, which was great news. 
> Here is the top of the piston, so I guess I did get it to
> TDC on the leak down test.<piston at TDC.jpg> 
> > > 
> > > Thanks again to all. 
> > > 
> > > Dan 
> > > 
> >
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