block cleaning - Team Camaro Tech
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post #1 of 3 (permalink) Old Nov 10th, 05, 06:30 AM Thread Starter
Senior Tech
 
Join Date: Jun 2003
Location: columbus oh.
Posts: 891
block cleaning

i was about ready to assemble the 383 (got all the parts,rotating assembly balanced) ,but when i took it out of the machine shop bag i noticed the oil return holes were badly obstructed and the casting was very rough (hecho en mexico block)!i went ahead and opened up the front and rear oil returns,chamfered the lifter valley return holes,knocked off the sharp edges on the whole block and did some smoothing of the rough spots.
the block as it came from the shop had cam bearings installed,front and rear oil galleys plugged and brass freeze plugs installed.
question is,will i be able to clean the block thoroughly enough with a power washer or car wash sprayer?the block was thoroughly cleaned and coated with a rust preventative after machining.
thank's in advance for your replies!
Eric B

86 camaro,383,topline vortecs,scat crank,wiseco forged 9.5:1,6"scat rods,comp xs282s,performer rpm,750 proform vac sec,msd in cap, hooker coated 1 5/8"headers,3"flowmaster,700r4,2800 stall,3.42 10 bolt posi,hotchkiss lca's,aje tube k member & a-arms
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post #2 of 3 (permalink) Old Nov 10th, 05, 12:16 PM
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Steve
 
Join Date: Jun 2005
Location: Melbourne, Australia
Posts: 2,864
Re: block cleaning

Go to your gun shop and get rifle cleaning brushes. Remove every npt plug and start cleaning.
High pressure wash and/or compressed air definitely required.
It would be best to have the cam bearings removed if you can.

Nov 68 Van Nuys. 327 floor-shift-auto, Frost Green and not much else when new.

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post #3 of 3 (permalink) Old Nov 11th, 05, 07:38 AM
 
Join Date: Apr 2000
Posts: 21,341
Smile Re: block cleaning

Yes, use the gunbarrel brushes at the carwash along with a cup of diesel fuel and then spray h-ll outta her with soapy water and then again with clear rinse water!

Bag her and hurry home and use an air compressor to blow her dry ASAP.

And don't be supprised if your cylinderwalls flash rust right before your eyes if they are freshly bored! Just wipe them down quickly with some ATF or 20wt oil ASAP too.

No biggie, but it is a shock to watch how fast flash oxidation happens on CLEAN freshly machined metal!! Was to me anyway...

pdq67



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