Got everything back from the machine shop. Plastigauging and assembly of the short block today. Stay tuned!
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Got a lot done today. Pretty much finished up the bottom end. Here is a rundown of all the work I had done:
-Engine blueprinting and balancing-
Requested machine shop to balance rotating assembly under this criteria:
1) Match lightest piston to heaviest pin
2) Match lightest piston/pin set to heaviest connecting rod
3) If needed, machine ONLY the connecting rod cap, and NOT the body of the rod to bring the weights of each piston/rod assembly within .2 grams of each other
4) Based on the weights of the piston/rod assembly, calculate dummy weights needed, or amount of material to remove to balance crankshaft
5) Once internals are balanced, bolt flywheel and harmonic damper onto the crank, and balance. Only if needed- machine ONLY the flywheel to counterbalance any imbalance in the crank
6) Hot tank
7) Dial bore gauge to ensure bore is true and free from egg shaping
I asked them to balance it this way based on information gathered through a buddy of mine who is a Chassis Engineer for Honda. He ran it by the race engine builder at Honda and informed me that this is the way it is done on all of their race engines. Balancing the rotating assembly this way ensures even weight distribution which will result in a naturally balanced assembly- without "marrying" external engine parts to the internal parts.
All in all, a bit of material was taken out of rod caps 1,2,3,5 and 6. Some material was drilled out of the crank counterweights and some material was also taken out of the flywheel. The machinist told me that not much was needed to bring it to balance, as all the factory parts were pretty much well balanced with each other.
Anyway, enough of my OCD rant, on with the pics!
New OEM main bearings installed and plastigauged:
My buddy helped me get this shot:
Once everything was measured, on with assembly. Assembly lubed:
And this is quite possibly the best tool I've ever bought- Wiseco tapered ring compressor makes installing pistons a breeze:
Square it, set it, and literally push it in with your thumbs:
First piston IN:
Another handy tool to have- torque angle gauge. The service manual has you torque the rod nuts to 14lb/ft and then rotate each one to 95*. This allows for the most accurate measurement:
95*
Once that was all done, it was just torquing the main caps and girdle, reinstalling the windage tray, oil pickup, oil pump, jets, new front and rear engine seals, oil pan and voila:
Final measurements are:
Main bearings
Standard (NEW)
0.0009"-0.0019"
1- 0.0015"
2- 0.0015"
3- 0.0015"
4- 0.0015"
Rod Bearings
Standard (NEW)
0.0016"-0.0024"
1- 0.0018"
2- 0.0019"
3- 0.0017"
4- 0.0019"
5- 0.0019"
6- 0.0018"
If I wanted to I could have mixed and match bearings the have all the rod bearings all be the same #. . .but I figure, good enough.
Should be finishing up shortly. Still waiting on some key parts to come in for the turbo setup. Stay tuned!