The Stovebolt.com Forums Home | Tech Tips | Gallery | FAQ | Events | Features | Search
Help is a click away!

VEHICLE
INFORMATION
KITS


at the

GM Heritage Center
All the details are here.

Searching the Site - a click away
click here to search
New here ??? Where to start?
Click on image for the lowdown. Where do I go around here?
====
Who's Online Now
2 members (55shaker, 1 invisible), 55 guests, and 2 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums66
Topics128,076
Posts1,055,920
Members48,429
Most Online14,466
Apr 26th, 2026
Step-by-step instructions for pictures in the forums
Brad Allen's photos

AD Chevy Trucks

Pictures galore
Over 6,000 pictures

Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips.

Check them out!

Lots of work on Brad's part ... pure enjoyment (and references) for you!

Big Thanks!

THANKS!

For helping keep this great
old truck web site
on the Internet for

over 30 years!

and not clogged down
with Ads!


Again, thanks!

Previous Thread
Next Thread
Print Thread
#210372 06/21/2006 10:53 PM
Joined: Jun 2006
Posts: 24
5
New Guy
New Guy
5 Offline
Joined: Jun 2006
Posts: 24
I just got the water pump and water neck off of my 235, and the build up inside the block seems to be a lot. I was wondering if there is a way to flush the block before I put it back together, and before it runs?

the old water pump had one threaded inlet on it for heater, and the new one I got from NAPA has two threaded inlets and the main outlet for the radiator, Do I just plug one of the holes or should there be one that looks the same as the one I took off?

I also was given a 12v coil at NAPA, will this be okay to run on the 6v system?

That's me in the back of my bolt on the home page

#210373 06/21/2006 11:25 PM
Joined: Sep 2003
Posts: 2,384
6
Shop Shark
Shop Shark
6 Offline
Joined: Sep 2003
Posts: 2,384
I have been known to use a water hose & coat hanger,welding rod,, what ever to knock stuff loose & hose out the water jacket-you can even pull a freeze plug or two & hose it out front to back if really clogged up. brian


My \'64\'s in the Gallery
Pictures in my Photobucket
1964 C10 Custom Cab 350/700R4
1964 Suburban 350/700R4
1979 Ford F350 4x4 400/c6
#210374 06/22/2006 12:27 AM
Joined: Dec 2003
Posts: 510
Shop Shark
Shop Shark
Joined: Dec 2003
Posts: 510
I just did this on a 29 Model A motor. When I took the lower water neck off, I found that the block was full of dirt, sticks and (of all things) acorn shells. A squirrel or mouse must have made its home in there in the 40 or so years the A wasn't running.

I ran a garden hose and ran the water forward and backward for a while and poked around with a screwdriver to loosen any junk. There was a lotta stuff that came out, but when I was finished, I couldn't see or feel anything but the cylinders inside. I think I got it all out.

This is probably different from the kind of build up you might have in your motor but as 64Fleetside suggested, you might be able to use something in the same way I used the screwdriver to dislodge as much junk as possible. I'd sure want to make sure that the water wasn't trying to flow thru the radiator to avoid plugging it up.

#210375 06/22/2006 10:01 PM
Joined: Nov 2000
Posts: 1,966
F
'Bolter
'Bolter
F Offline
Joined: Nov 2000
Posts: 1,966
Is there a block drain plug on the drivers side rear just a few inches above the oil pan flange? There is on my 216, in fact it had a petcock. Look for that. It will help. On my 216 I removed the old petcock and nothing came out. I poked in there with a piece of wire until it broke loose. Good luck.


Professional Novice

Moderated by  Gdads51 

Link Copied to Clipboard
Home | FAQ | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 8.0.0