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04-30-2014, 09:48 PM
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#1 |
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Registered User
Join Date: Jan 2013
Location: Houston, TX
Posts: 178
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Real stupid
Sooo what happens if you don't follow the tightening bolt pattern on the head? It was a real stupid mistake on my part. Is the gasket bad now?
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04-30-2014, 09:55 PM
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#2 |
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Registered User
Join Date: May 2010
Location: Hillsboro, Oregon 97123
Posts: 1,300
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Re: Real stupid
you might break the head....not likely the gasket would be bad unless you run the engine and have a leak.....you might Unbolt the head if you have not run the motor and start over bolting it on right...............if its broke now theres not much you can do but try it....
__________________
Measure with a yard stick Mark with Chalk Cut with a torch  Built it yourself, don't count on others to to do it for you or with you. It will never get done |
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05-01-2014, 01:20 PM
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#3 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,064
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Re: Real stupid
It's not stupid if you didn't know. It's stupid if you understand what can happen & still choose to do it incorrectly....
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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05-01-2014, 04:00 PM
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#4 |
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Registered User
Join Date: Jan 2013
Location: Houston, TX
Posts: 178
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Re: Real stupid
i'll just have to learn from my mistakes
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05-01-2014, 04:48 PM
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#5 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,064
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Re: Real stupid
Quote:
 Tightening the head in the correct sequence ensures clamping pressure is applied evenly from the center out. It should be followed & torqing the heads should also be done incrementally up to the final torque spec required. It may or may not have caused an issue. Re-check the bolts using the correct sequence & torque specs. Most likely, the worst case scenario is a head gasket failure so watch for steam coming out of the tailpipe or water/oil mixing where it shouldn't be (milky/coffee appearing residue under the valve covers).
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. Last edited by SCOTI; 05-01-2014 at 04:53 PM. |
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05-01-2014, 05:06 PM
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#6 |
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Registered User
Join Date: Mar 2012
Location: edgartown mass
Posts: 852
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Re: Real stupid
well know you know that you did wrong and what you did. only thing now is to redo and hope it works. like what was said worst case you replace the head. best you redo start and have no problems. also one thing to do. is make sure everything is nice and flat and there are not anything on the guid pins or if you are useing studs make sure there are no washers on them when the head is set down. saw that happen was told i was wrong they trq the head (brand new alum dart) and end up craking and torching the head
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1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph 1985 k30 "the ice cream truck from hell" no rust az truck 197-8??? c30 "ramp truck" 454 1978 monte carlo 350 350th with 2.73 gears. no rust. sc car |
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05-01-2014, 05:22 PM
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#7 | |
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Registered User
Join Date: Jul 2010
Location: MD
Posts: 1,937
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Re: Real stupid
Quote:
If your head bolts touch water you should re do the sealer before re-torquing.
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1969 c-10 Step Side Long Bed. I-6 250cid =  = 1969 Pontiac GTO hard top. 400, 4-speed.
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05-01-2014, 07:47 PM
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#8 |
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Registered User
Join Date: Jan 2012
Location: Oklahoma City, Oklahoma
Posts: 114
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Re: Real stupid
Experience is a cruel teacher, it gives you the exam and then the lesson.
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Rally 'round the family....with a pocket full of shells. |
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05-02-2014, 07:12 AM
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#9 |
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Registered User
Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
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Re: Real stupid
Add 5lbs of torque and re-torque them in the proper sequence. I wouldn't loosen them, you may end up with a fire ring that doesn't re-crush correctly which could cause a problem.
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