[Supras] Cam gear timing difficulties

[Koll]

Well, all is done.  It runs like a well oiled sewing machine <ahem> after I 
put the distributor in correctly.  Did you know a 7M can start and run with 
30 degrees negative advance?

Previous owner was not one to turn his own wrench, and had let the negative 
crankcase system clog up solid and fixed his oil leaks by changing out cam 
seals, crank seal, oil seal.  Car ran great, but that's the problem with 
Toyotas, they can run awesome and still be hiding some serious issues.  PO 
also had put jobber seals in there to boot.  <sigh>

Now, it doesn't leak a drop of anything and when you lift up the dip stick 
when idling, RPMs raise a slight 50RPM as the computer compensated for the 
"false air".

Thanks for the help!

  Koll


----- Original Message ----- 
From: <cthommes at adelphia.net>
To: "Koll" <kasimonds at qwest.net>
Cc: <supras at supras.com>
Sent: Thursday, February 28, 2008 3:52 PM
Subject: Re: [Supras] Cam gear timing difficulties


>I don't think so.  But in your case I might not rush out and take a scuba 
>diving class just yet.  ;)
>
> -Craig
>
> ---- Koll <kasimonds at qwest.net> wrote:
>> Uhhh...
>>
>> http://www.turbo505.com/duuh.jpg
>>
>> Is is possible for someone to be too stupid to breathe?
>>
>>
>> ----- Original Message ----- 
>> From: <cthommes at adelphia.net>
>> To: "Koll" <kasimonds at qwest.net>
>> Cc: <supras at supras.com>
>> Sent: Thursday, February 28, 2008 3:14 PM
>> Subject: Re: [Supras] Cam gear timing difficulties
>>
>>
>> > First, that photo wasn't taken with the crank at 0TDC was it?  If so, 
>> > your
>> > cams are way advanced, gear notches should be straight up.
>> >
>> > The other possibility is that while the cam pin is in the middle hole 
>> > on
>> > the cam gear, it's not in the middle hole on the camshaft itself.  That
>> > would cause a huge (about 30 cam degrees) error in cam timing one way 
>> > or
>> > the other.
>> >
>> > And <ahem> you do have spark plugs installed, right?
>> >
>> > -Craig
>> >
>> > ---- Koll <kasimonds at qwest.net> wrote:
>> >> Hey all,
>> >>
>> >> I'm having a hell of a time getting the cam timing straight on my 
>> >> stock
>> >> MX83
>> >> Cressida.  (7M-GE).
>> >>
>> >> I put the crank at zero, then the cam marks to line up with the back
>> >> plate
>> >> notches and button it all up and no-go.  The engine just "spins", 
>> >> doesn't
>> >> "crank".  No compression.
>> >>
>> >> I followed the TFSM, but I did nothing wrong.  The only "variable" 
>> >> they
>> >> mention is which hole to put the cam alignment pin into but I can't 
>> >> even
>> >> see
>> >> how that changes anything.  (I did put it back in the same hole - 
>> >> middle)
>> >>
>> >> So, I'm searching the crap out of the net trying to figure out where I
>> >> screwed up and someone mentions that you have to see the intake cam 
>> >> lobe
>> >> in
>> >> the oil filler hole.  So, I check and OK, looks like I'm 180 out. 
>> >> Re-do
>> >> it
>> >> "right" and still the "spin", not the crank normally associated with 
>> >> the
>> >> air-pump an engine is.
>> >>
>> >> Is there any other way this can be messed up?
>> >>
>> >> 1. I've got the cam pins on the middle pin.  Which matches with what 
>> >> was
>> >> there when I disassembled:
>> >>   picture:  http://www.turbo505.com/cam-gears-before.jpg
>> >>
>> >> 2. Put pencil in spark plug hole #1 and it rides high on crank mark 
>> >> zero.
>> >>
>> >> 3. Cams line up perfectly after two manual turns of crankshaft (back 
>> >> to
>> >> zero).
>> >>
>> >> My last Supra was cake when I was here.  So I've done this two times 
>> >> so
>> >> I'm
>> >> assuming that I can eliminate the 180 out issue.  Although I'm getting
>> >> pretty good as disassembling the front of the engine, I'm getting real
>> >> sick
>> >> of this.
>> >>
>> >> Can anybody help?  Damn, I feel like such a dumbass.
>> >>
>> >> Thanks,
>> >>
>> >>   Koll
>> >>
>> >>
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>> >
>> >
>>
>>
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