|
|
|
|
Joined: Feb 2005
Posts: 2,433
ChatMaster - 2,000
|
ChatMaster - 2,000
Joined: Feb 2005
Posts: 2,433 |
When I had my 48 216 rebuilt a few years ago, the block and head were baked clean by the machine shop. I really don't know much more about the process than you mentioned Joe, but I haven't had one bit of overheating since the rebuild. I run a 160 thermostat and the highest temperature I've seen was 190 while idling for about 1/2 hour in 85-90 air temp. and it dropped right back down as soon as I started driving again. Apparently the "boiling out" process has become a waste disposal problem environmentally and has been replaced by "baking".
ken48
VCCA 42589
|
|
|
|
|
Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
|
|
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
Often the flushing of the system will be necessary will be necessary again in a few months due to more rust loosening up from the bottom of the water jackets.It almost impossible to get all the rust out without have the block boiled out.
The 1941 and up Chevrolets were rather cool running cars when they were new.If the cooling system was clean they seldom overheated-unlike most cars of those years.
I do remember them overheating due to rust when they were just a few years old . The people would drain the anti-freeze. run straight water in the summer,Then put the old anti-freeze back in for winter....and the anti-freeze did not contain rust inhibitors as todays mixture.
Last edited by Chev Nut; 03/27/07 10:23 PM.
Gene Schneider
|
|
|
|
|
Joined: Nov 2005
Posts: 210
Backyard Mechanic
|
|
Backyard Mechanic
Joined: Nov 2005
Posts: 210 |
A great bunch of info guys. Thanks.
'46 Fleetline Aerosedan
Most southernest vintage Chevy owner in Canada.
|
|
|
|
|
|
|
