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04-04-2002, 11:31 AM
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#1 |
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Registered User
Join Date: Mar 2001
Location: Fayetteville, Arkansas
Posts: 160
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Wash the block?
When you get your engine block back from the machine shop, do you wash it out with soap and water to remove any possible grit or flakes left over from machining? I usually wash it, blow out all the passages and quickly dry it with air pressure, and then coat all of the critical surfaces with oil. Is this recommended ... or necessary?
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04-04-2002, 11:33 AM
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#2 |
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Senior Moment
 
Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,092
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YES YES YES
------------------ Steve's 70 CST Soon to have a BB
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
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04-04-2002, 11:34 AM
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#3 |
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Teufelhunden
Join Date: Oct 2001
Location: Camp Pendelton Ca
Posts: 572
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i'm no engine builder by a long shot but i've always been told something to the effect of you can never have it too clean
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1971 K10 lwb fleetside 402 T350 205 |
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04-04-2002, 11:43 AM
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#4 |
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Registered User
Join Date: Nov 2001
Location: Concord, NC
Posts: 2,489
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Oh yes, by all means. wash it very well. I also take all the plugs out and use gun cleaning brushes to get all the oil passages clean. Also I like to remove the freeze plugs and use a long screwdriver or stout piece of wire to clean the water jackets real good. I've seen 30 year old casting sand still in the block even after it has been hot tanked. So if you have a presure sprayer Don't be afraid to use it, otherwise haul it up to the carwash. after it is real clean and dry coat the cyl walls with a lite oil and put a large trash bag over it to keep it clean...eb
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04-04-2002, 12:09 PM
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#5 |
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Shortbox wanna-be.
Join Date: Mar 2002
Location: Fort St.John, British Columbia, Canada
Posts: 773
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Personally, what I do, at work we have a high pressure steam cleaner, I wash the heck out of it, then immediatly spray it down with varsol very well. Varsol is oil based and will stop it from rusting. If you spray it down with some sort of oil, you will have a heck of a time when it comes to painting it. I do however wipe down the cylinder walls, main caps, cam bearing areas, and lifter bores with engine oil right after also. But like I said spraying it out with varson very, very, very well, after pressure washing it does a great job. Then after the varsol spray, blow it all off well with compressed air.
Reid ------------------ Sylvan Lake, Alberta, Canada 1970 Chevy C20 Custom Camper #s matching 402BB Turbo 400 trans. Air conditioning, power steering, manual brakes. 73,600 Original Miles!! (Add on 2000 more from raod trip!)
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1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. (Slowly becoming a '70 shortbox 1/2 ton) '71 Camaro SS 402/T400 resto '97 Z28 (11.41@127MPH) 
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04-04-2002, 12:15 PM
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#6 |
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Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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I would do that, but I know my machinist very well, and he always takes out the plugs before he tanks the block, and cleans everything there, he also washes the block thoroughly with soap and water before putting the block and or heads in a plastic bag. I trust his work.
------------------ '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84 ralleys and 31/10.5s 67 Cutlass convertible 330, 3spd stick 90 GMC Jimmy 350/auto Chad Stephens Orleans,NE
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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04-04-2002, 12:24 PM
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#7 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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I would not only wash it, but a stiff scrub brush and the aformentioned gun cleaning kit too.
------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio |
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04-04-2002, 06:42 PM
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#8 |
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Senior Member
Join Date: Jul 2000
Location: North Texas
Posts: 3,464
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The final thing to do is wipe down the cylinder walls using oil and towels until a WHITE cloth picks up NO discoloration at all. Any grit can wear out your rings in a hurry.
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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04-04-2002, 07:16 PM
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#9 |
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Account Suspended
Join Date: Sep 2000
Posts: 4,002
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Yes I have to agree, what I do when I get one back is take dish washing soap, a garden hose and a brush and go at it for a while. Then rihgt away dry it off and oil it down real good
------------------ 1969 Chevrolet Custom Camper 20 350/400 70k original miles They have the Internet on Computers now? --Homer Simpson Gee_Emm's Page Help me get my truck on a soda bottle!!!!! |
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04-04-2002, 09:07 PM
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#10 |
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Registered User
Join Date: Aug 2001
Location: rock island,il,usa
Posts: 5,382
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The shops will tell you that they are ready to build when you get them.....bullsh*t! Hot soapy water& a stiff brush. If you dont have the rifle brushes,high pressure cleaning the galleys should be ok. The bores will always have grit in them,I wipe mine down with ATF after soap & water with a lint free towel. You would be supprised at the grit that comes out! Ok, enough harping....good luck...69 longhorn.
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