[T3] Tight Engine

[donrob at yachtsales.com]

In my experience tightness in an engine is almost always caused by some 
sort of crankshaft issue.  Did your crankshaft spin easily before you 
hooked up the rods?

Don Robertson
905 566-0000 (cell)
donrob at fastmail.com




On 2018-07-30 21:07, Keith Park wrote:
> Well I managed to get the muffler on, with some persuasion and a hot 
> wrench.
> 
> with the new T4 in it it actually runs a lot better than I thought it 
> would
> before I start to tune.
> 
> This time I'm running a T3 048 E brain from a 73 with matching pressure
> sensor, modified to adjust.
> 
> with the larger 2L injectors the entire curve is richer than stock T3 
> so I
> was hoping it would be "close enough" to tweak in
> 
> with the pressure sensor.
> 
> 
> 
> Ive only driven it a few miles, the mixture at light to moderate 
> throttle is
> reasonable, but when I put my foot down harder
> 
> the mixture leans out considerably to and AFR of 15 to 16, kinda like 
> the
> opposite of what Id like to see happen and what
> 
> happened with the C based system I had on it years ago.
> 
> 
> 
> now remind me... what gives the full load enrichment on the stock 73 T3
> injection? I remember it being an extra pin
> 
> on the throttle switch, but is that it?  you wont hit that till your
> floored.
> 
> 
> 
> Motor seems a bit "tight" when hot, the cylinders and pistons have 900 
> miles
> on them from the previous build,
> 
> how long does it take to "loosen up"?  I don't remember it being so 
> tight...
> I can turn it over with a screwdriver
> 
> but it sure aint as loose as the last engine was.
> 
> 
> 
> Whew!  good to have it back, but I need to get the full load enrichment
> figured out.
> 
> 
> 
> Topnotch Restorations
> 
> topnotch at nycap.rr.com
> 
> http://www.topnotchresto.com
> 
> 71 Squareback  "Hothe"
> 65 Notchback  "El Baja Rojo"
> 
> 93 RX7  "Redstur"
> 
> 95 Chrysler Cirrus Lxi "Cirfogsalot"
> 
> "hanging out at the tail end of the bell
> 
> curve, and loving every minute of it!"
> 
> 
> 
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