Rebuild Diary

 

  

 

     (Updated:  24Dec05)

 

 Trans Am Home | Diary | Page 2

 

                                                                                                                     12Feb06

 

 

 

The only true happiness comes from squandering ourselves for a purpose.

--William Cowper (1731 - 1800)

 

 

4Nov05

 

 

Discovered why the Trans-Am had been running poorly for the past three weeks.  I pulled into the driveway today and noticed a flood of antifreeze coming from beneath the car.  Apparently the water pump had been leaking on top of the Optispark distributor causing the engine to misfire.  Hmmm...  maybe now would be a good time for that engine rebuild!

 

11Nov05

 

Welp, I decided to go for it--  again.  Backed the car into the garage and began disassembly.

 

 

12Nov05

Removed the hood, battery, throttle body, valve covers, drained and removed the radiator and a/c condenser.

 

 

 

 

 

13Nov05

 

Removed the remaining accessories and wiring on the front and top of the motor and transmission...

 

 

 

 

 

 

 

16Nov05

 

Removed the center console and shifter from the interior of the car.  Turned the car around in the garage so the nose is pointed in (don't ask).

 

 

19Nov05

Pulled the motor with the transmission from the car from the top.

20Nov06

Did a cylinder leak-down test.  Six cylinders were 80/80, the other two were 78/80.  Those Total Seal Zero Gap rings held up well after 50,000 miles!  Found 5 leaky exhaust valves though...   Removed the cylinder heads and began engine teardown and inspection.

22Nov05

 

Made a trip to Dallas Exports (Stroker Motor) to have my pistons inspected before I re-use them.  As I suspected-- they're fine!

 

 

23Nov05

Ordered a set of MAC headers from Jet-Hot coatings to replace the Borlas that I'm using now.

27Nov05

Spent the day removing the rings from the pistons, checking end gaps and cleaning engine parts.

28Nov05

Sent the ring set from cylinder number 7 to Total Seal for examination.

1Dec05

Spent the afternoon profiling the ZZ9 cam intake and exhaust lobes.  Noticed that some of the cam lobes are spalled...   crap!   So much for selling this cam.  I'll have to check the valve springs latter, I'll bet they're too strong.

2Dec05

The order from Summit & Jet-Hot arrived today!  Headers, cam, plug wires, rod and  main bearings are here. 

 

 

My suspicions are confirmed: I measured the valve springs and discovered that they are too strong for a hydraulic roller cam.  They'll have to be replaced with a more reasonable spring. 

   
         

 

 

Made a trip to Stroker Motor to drop-off the cylinder heads for a performance valve-job.

   
         

 

 

Stayed up late profiling the new custom grind Comp Cams cam.

 

 

         

3Dec05

 

Spent the afternoon profiling the stock cam.   I'll post the graphs of all 3 cam profiles in the near future.  Should be interesting!  If I can get my hands on some different cams I'll profile them too and post the results.

 

 

 

 

 

 

 

5Dec05

 

Spoke with Keith at Total Seal.  My rings arrived there OK but he hasn't had a chance to look at them yet.   Ordered a new A/C bracket and oil level sensor from Dal.

 

 

 

 

 

 

 

7Dec05

 

Spoke with Keith at Total Seal again today.  Decided on a 'special' ring set for this motor.  It's basically their Max Seal ring set (gapless top ring) with a 'special' Napier second ring for VERY aggressive oil control. 

 

 

 

 

 

 

 

9Dec05

 

Made a trip to Stroker Motor today to drop-off the block for boring and honing and the rotating assembly for balancing.  The valve guides in my cylinder heads are worn and will all be replaced with bronze guides.  The valves are OK though!  Jury's still out on the valve springs...

 

 

 

 

 

 

 

 

 

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