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chickenhouse
Enthusiast
Feb 28, 2015, 6:48 PM
Post #1 of 12
(1652 views)
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Hi guys. this thing was parked inside during zero temps. My prestone tester let me down. Read -17 and considered putting a trouble light on it but thought not necessary. Drove it 50--70 miles and noticed small amount of dteam from under coil cover. Did not overheat at all, decided to pull the head and mill and do the valves. I put new timing gears and chain and guides and anything else required with water pump. Started and ran from shop to house. Shut it off, she got in and no start. Divorce pending. Pushed back to shop, started. Tried again to start, no compression. Found out I tourqued the head wrong. Pulled it apart, new head gasket, together, started, ran until tried to give it gas. Stalled. No start, no compression on 2 cylinders. Got the timing marks on, locked the cam gears in place when putting chain on. What'd I miss?
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Discretesignals
Ultimate Carjunky
/ Moderator
Feb 28, 2015, 7:07 PM
Post #2 of 12
(1646 views)
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You sure the cylinders are not being washed out? Put some oil down in there with the injectors disabled and see if the compression on 2 comes back up.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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chickenhouse
Enthusiast
Feb 28, 2015, 7:13 PM
Post #3 of 12
(1643 views)
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Pretty sure that's not an issue, didnt crank it enough to wash cylinders. It started good, right up but gave ut just a little throttle and stalled. Then cranked like no compression
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Discretesignals
Ultimate Carjunky
/ Moderator
Feb 28, 2015, 7:18 PM
Post #4 of 12
(1642 views)
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Which cylinders have no compression?
I'd say a leak down test is in order to see where the compression is leaking off to.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Feb 28, 2015, 7:21 PM)
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chickenhouse
Enthusiast
Feb 28, 2015, 7:46 PM
Post #5 of 12
(1637 views)
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Yes, that's the next step when I get up enough to get back at it. Blow air in each one while at tdc and listen where it's leaking
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Mar 1, 2015, 12:24 AM
Post #6 of 12
(1622 views)
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Just a note on antifreeze and testers: Most testers are wrong! Also know that if you had some antifreeze such as real protection to say about 10-15F above zero F. the mix goes to slush AND doesn't expand but doesn't flow and probably did have a hard overheat that didn't show as sensor would be still in slush!
The point is EG (ethylene glycol) based antifreeze (about all) doesn't expand and crack things when it freezes and can harmlessly (don't try it) without damage to an engine unless it's run! IMO - weak link would be head and head gasket failures found with the tests mentioned,
T
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chickenhouse
Enthusiast
Mar 1, 2015, 10:46 AM
Post #7 of 12
(1607 views)
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Tom, that's what I suspected to begin with which is why I took the head off and had it machined and valves ground while it was there.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Mar 1, 2015, 11:28 AM
Post #8 of 12
(1605 views)
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Dang CH! Are the cylinder's with no compression next to each other? Do you trust machine work on heat and any (late to look now) crack in the block between two cylinders?
Any clue of how hard it really froze? If really frozen solid I think most would crack to side of water jackets and out when warmed up but couldn't say any of that for sure if that really happened it's total trouble,
Tom
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chickenhouse
Enthusiast
Mar 1, 2015, 12:08 PM
Post #9 of 12
(1600 views)
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No Tom, not a hard freeze, like I said, I drove the car about 70 miles and seen just a little steam coming from under the coil pack so took it down to check for cracks.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Mar 1, 2015, 2:29 PM
Post #10 of 12
(1596 views)
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OK - I just couldn't have gone that far and really frozen up - something would have quit long before 70 miles IMO. I try NOT to find out on those things. MA has had some pretty funky lows and very spotty just where. Not right here but more to the South still in MA did hit -25F overnight. Stuff happens at those temps anywhere,
Tom
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nickwarner
Veteran
/ Moderator
Mar 1, 2015, 3:32 PM
Post #11 of 12
(1593 views)
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Dumb question, but did you use new head bolts when you put this back together?
Your coolant tester read -17, did actual air temp get below that for an extended period when the car was shut off? Windchill is just perceived temp, air temp is what really matters as far as freeze point of your coolant.
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chickenhouse
Enthusiast
Mar 1, 2015, 3:45 PM
Post #12 of 12
(1590 views)
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Of course new bolts. I don't think it got cold enough to do the damage I was trying to fix but just a little steam was all. Should have left it alone and would have known what to fix for sure! Scrap!
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