<VV> Axle shafts, wheel wobble & detonation.

[Hugo Miller]

On 2020-03-02 19:49, Charles Sadek wrote:
> Hugo,
>
> Use a mirror or take the turkey roaster off. Sounds like your 
> cylinders and
> heads are clogged with debris. Engine should not overheat at all. You 
> will
> not be able to blow the debris down thru the cylinder air deflectors 
> or the
> heads.
>
> Ought to do a compression or leak down check and see what is what. 
> Sounds
> like the detonation might be from coking up the chambers.
>
> Wheel wobble. Do someresearch online as to allowable wheel wobble. 
> Any is
> too much. Make sure wheels are on straight.. real wires are a problem
> waiting to happen. After making sure all are true, rotate and try 
> wheels on
> different corners to try and isolate the problem.
>
> Any play in axle flange is too  much. Shouldn't be any.
>
> Good Luck
>
> Chuck S
>
> -----Original Message-----
> From: VirtualVairs [mailto:virtualvairs-bounces at corvair.org] On 
> Behalf Of
> Hugo Miller via VirtualVairs
> Sent: Monday, March 2, 2020 7:43 PM
> To: virtualvairs at corvair.org
> Subject: <VV> Axle shafts, wheel wobble & detonation.
>
> I finally got around to putting some work into the '64 convertible I 
> am
> planning to keep for myself. It has a very sound body which I have 
> just
> painted Cascade Green, & looks lovely. But it doesn't go so well. I 
> have
> a horrible wheel wobble that comes in & out of phase at 55 - 60 mph. 
> It
> has new Maxxis tires in wire wheels incidentally. I just spent half 
> the
> day checking to see whether the hub adaptors are running out of true 
> -
> the left one isn't quite true, but I'm not sure whether it is enough 
> to
> cause any problems or not, and in any case I'm not sure what to do 
> about
> it! I'm wondering whether some of this is due to the fact that I have 
> a
> fair bit of play in the right-side axle-shaft flange where it comes 
> out
> of the diff. That can't be helping. What is the cause of this 
> normally?
> There is a tiny bit of play in the left-side u/j, but not enough to 
> make
> any different to anything.
> The engine is a bit tired, and it's a low-power motor, but I have a 
> 140
> engine I am going to rebuild to put in there. But I would like to get
> this one running better for now so I can use the car. The main 
> problem
> is it overheats after about ten or fifteen miles - even on a cool
> Florida day - & I have to wait for it to cool down before I can go 
> any
> further. I took the bottom shields off, expecting to find the fins 
> all
> clogged with leaves where the storms had blown them in, but they all
> look clear enough. I was thinking of putting a hose pipe down there
> through the fan & see if anything comes out. Or would an air line be
> better?
> And it detonates like crazy - not pinging, but a heavy knock. At 
> first
> I thought it was piston slap, but it doesn't do it from cold. It does
> start doing it before the engine gets the slightest bit hot though -
> before it has even reached running temp I would say. I haven't 
> checked
> things like ignition timing yet. I'm not quite sure which job to 
> tackle
> next, so I thought I'd throw this lot out there to see if anybody has
> any suggestions?
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