The Stovebolt.com Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Thinking again ...
We are still asking:
What did you
get done on
your Bolt today
????


The question, initially posted May 23, 2005, was:
"Whatcha do on your Bolt
this weekend?"

After 51,906,997 views, 7378 replies over 185 pages, this thread in General Truck Talk is a happening! And it's not just weekends anymore.


Now with pictures
and No BOTS.


So ...


What did you get done on your Bolt today????


Stovebolt Site Search
'
Oh Lord, I just gotta find it....

A pdf guide to help you search the Site


Old Truck Calendars
Months of truck photos!
Nothing like an old truck calendar

Stovebolt Calendars

Check for details!


Who's Online Now
10 members (Leo, Hambone, D B Cooper, 3800GUY, DaveV, John Dlugos, 1 invisible), 58 guests, and 6 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums60
Topics127,583
Posts1,032,707
Members45,812
Most Online1,229
Jan 21st, 2020
Image Posting Policy
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
250 water in oil
#1435520 Sat Jan 01 2022 02:18 PM
Joined: Oct 2011
Posts: 112
7
'Bolter
I bought a 66 c10 and the 250 had water in the oil Pulled the head and saw this[img]https://live.staticflickr.com/65535/51789678137_2f142d2bdc_t.jpg[/img] [flic.kr]IMG_4720 [flic.kr] by Daniel Crymes [flickr.com], on Flickr

Re: 250 water in oil
79broncoowner #1435521 Sat Jan 01 2022 02:19 PM
Joined: Oct 2011
Posts: 112
7
'Bolter
Is the crack the problem or should I look for something else?

Re: 250 water in oil
79broncoowner #1435531 Sat Jan 01 2022 04:21 PM
Joined: Jun 2011
Posts: 4,468
E
'Bolter
That would do it!

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Re: 250 water in oil
79broncoowner #1435542 Sat Jan 01 2022 04:56 PM
Joined: Feb 2004
Posts: 24,297
H
Kettle Custodian (pot stirrer)
Unfortunately, cracks in that area of the 230/250 engine and coolant/oil cross contamination is a chronic problem. It's virtually impossible to repair. It's time to go looking for another engine, or at least a block.

Apparently, there's a hot spot that develops at the front of those blocks that promotes a lot of heat expansion and contraction which leads to cracking. The #1 cylinder is also prone to excessive taper wear. I've had to sleeve a few front cylinders to avoid having to bore all of the cylinders way oversize, or scrap an otherwise good block.
Jerry


"Freedom's just another word for nothing left to lose"
Kris Kristofferson

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!

WAG MORE- - - - - -BARK LESS!
Re: 250 water in oil
79broncoowner #1435601 Sat Jan 01 2022 10:19 PM
Joined: Feb 2000
Posts: 4,445
J
'Bolter
A lot of the 194-230-250 engines have the same crack, I had one just like it. I have read that the head bolt at the front drivers corner needs only 85 ft lbs of torque where the others get 90 or 95. The little bit of cast iron left after boring the water pump hole along with heat cycles cracks them. I have read where installing the water pump helps when torquing the head. Mine seeped coolant to the outside, there shouldn't be any oil in that location. There are head bolts that go into the water passages, so maybe one of them is letting coolant up into the top of the head where it mixes with oil. I scrapped the block, no one wanted to try and fix it, plus blocks were fairly easy to get at the time.

Re: 250 water in oil
79broncoowner #1435636 Sun Jan 02 2022 01:03 AM
Joined: Oct 2011
Posts: 112
7
'Bolter
What year 250s will fit my 66. A local yard had one in a early 80s c10 but it looked different than mine

Re: 250 water in oil
79broncoowner #1435655 Sun Jan 02 2022 02:36 AM
Joined: Apr 2005
Posts: 10,686
Grease Monkey, Moderator General Truck Talk & Greasy Spoon
All of them will “fit” but the later models had the intake integrated with the head and massive amounts of vacuum hoses and smog stuff. The integrated head was a real weak point, so, I would stick with the earlier versions.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne 4dr 230 I-6 one owner (I’m #2) “Emily”
‘39 Dodge Businessmans Coupe “Clarence”



"I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)

Re: 250 water in oil
79broncoowner #1435662 Sun Jan 02 2022 03:28 AM
Joined: Feb 2004
Posts: 24,297
H
Kettle Custodian (pot stirrer)
I've got one of those late model 250's in my core engine collection. The head will either be trading material, or maybe I'll make it a boat anchor!
Jerry


"Freedom's just another word for nothing left to lose"
Kris Kristofferson

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!

WAG MORE- - - - - -BARK LESS!
Re: 250 water in oil
79broncoowner #1435700 Sun Jan 02 2022 01:29 PM
Joined: Oct 2011
Posts: 112
7
'Bolter
Ok I will try to find an older one. How hard to put in a 292 I know the passenger side motor mount is different what else?

Re: 250 water in oil
79broncoowner #1435714 Sun Jan 02 2022 02:39 PM
Joined: Apr 2005
Posts: 10,686
Grease Monkey, Moderator General Truck Talk & Greasy Spoon
292 is longer overall.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne 4dr 230 I-6 one owner (I’m #2) “Emily”
‘39 Dodge Businessmans Coupe “Clarence”



"I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)

Page 1 of 2 1 2

Moderated by  Woogeroo 

Link Copied to Clipboard
Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 7.7.4