TECH NOTE SERIES

NEW ENGINE BREAK IN RECOMMENDATIONS

Sept 20/96

Hi Guys. 

The following is a few notes on break in and other new engine tips.

Do not rev your engine over 3000 rpm. Many new engine owners blow the
long term life of there new piston rings within the first 1500 miles, I
mean miles not Kms. The only thing that need to break in on your engine is
the rings! The rest of it could be run on the Dyno at 7000 rpm 5 minutes
after it is first started. Piston rings need time to bed in to the new block
surface. If you go more than 3000 or 3500 Max you will not get the correct
bed in pattern. Very Key. Take the car on weekend trips to USA, East coast
and all over, Vancouver if you want, just kidding!. When on the highway do
not drive at same speeds, don't rev the motor over 3250 rpm and also don't
lug it to much. The best thing is small changes in speed,
80,100,105,110,75,80, etc. basically just don't use the cruise control on
the high way and you will get a great break in. Head re torque will not be
needed Your engine has racing head bolts and the factory torque spec's are
not to be used. Your spec is 85 ft/lbs.


Things to do, I have noted things that must be done and things that are
optional!

Be sure you have the cooling system all up to speed;
*New rad cap {a must do}
*New clutch fan {a must do}
*New or Serviced Rad {a must do}
*New Toyota thermostat {a must do}
*New Toyota rad hoses {optional} replace as necessary

Make sure exhaust system is up to speed;
*Remove Cat's from down pipe by installing a straight pipe {a must do}
*Or replace the Cat's with High Flow ones or factory new ones {optional}
*Clean all engine parts to be put on the new engine long block {optional}
*Install new spark plugs {a must do}
*Check resistance on plug wires {a must do}
*Replace clutch disc {a must do} its the old pay me know or pay me later
rule. When the engine is out it is out 	anyway, never put in a worn
clutch disc, anything less than 80 % left is not worth your time.
*Have turbo inspected by turbo shop for condition.

Oil and oil changes;
*Only use Toyota Ceramic oil filter on the engine at all times. This is the
best filter on the market.
*Use Esso Ultra 10-30 oil for break in. Esso oils have proven to work will
in 7M turbo and 2JZ twin turbo engines.
*Change the oil after the first 500 kms to new Esso Ultra 10-30.
*After this change the oil every 2000 km's.
*When the engine has 10,000 km's you can use Esso 100% synthetic 10-30,
or 5-30, 15-50 is good in the hot summer months. The Esso 100%
synthetic will not burn through your engine as may of the other brands do.
The club has compiled a lot of documented facts about oils that work and
don't. I'm not telling you to use the Esso products because someone said
they were good or some sales man said they would do this or that. The
Esso oils have proven themselves over and over again. As has the Ford gear
oil for the Diff's in the Supras and Redlines synthetic MTL for the 5 and 6
speed trans.


This should see you to a good new engine. You should also be sure and
check all my other pointers in the PMTNMA70.v35 I will send this to you in
an attachment file. Print it out and read it.

Talk soon




Reg

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{SONIC} Supra Owners Network In Canada
FROM THE HOME OF THE SUPRA GTE
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