FE Power Forums

FE Power Forums => FE Technical Forum => Topic started by: preaction on September 27, 2019, 01:40:06 PM

Title: Headgasket/coolant
Post by: preaction on September 27, 2019, 01:40:06 PM

I just got my newly gaped sparkplugs installed and went for a ride  after  lots of white smoke and antifreeze dripping from the exhaust it appears to be a blown head gasket my question is does this have to come apart right away to avoid any rusting of the cylinder bores ?

Title: Re: Headgasket/coolant
Post by: frnkeore on September 27, 2019, 03:16:43 PM

It doesn't, if you drain the coolant and run it to operating temp, at a idle. Use a heat gun for temp, the sende won't pick the true temp, w/o water.

Pull the plugs and squirt light oil in the cylinders spin it with the starter and it should be fine, until you get to it.

Title: Re: Headgasket/coolant
Post by: preaction on September 27, 2019, 08:22:33 PM

Frank, thanks ;)

Title: Re: Headgasket/coolant
Post by: dcm0123 on September 27, 2019, 10:02:44 PM

This time of year smoke and dripping is common. Suggest you double check the gasket is the problem before tear into the engine.

If water is coming from the tailpipe, you should see the coolant level in the radiator dropping. Did it?

Title: Re: Headgasket/coolant
Post by: preaction on September 27, 2019, 11:41:51 PM

Coolent level went down the car has an X pipe and fogging heavy with antifreeze clear at the pipe ends. Is it possible to have a lean condition that could cause this I just switched over to LL100 AV fuel and I seem to have gotten all of the adjustments spot on but maybe not A/F ratio as I was in the process of testing a colder plug when this happened.

Title: Re: Headgasket/coolant
Post by: winr1 on September 28, 2019, 02:00:00 AM

Have ya pulled plugs to see if any moisture ??

Also, have a compression tester ??



Ricky.

Title: Re: Headgasket/coolant
Post by: frnkeore on September 28, 2019, 02:34:34 AM

A old but, reliable way to test for a blown headgasket, is to pull all the plugs and spin the engine. If it's one cylinder, coolant will shoot out of it.

 I should add one thing to my above recommendation, leave all the drains and radiator cap open, when your warming the engine, to make sure that all the coolant evaporates.

Title: Re: Headgasket/coolant
Post by: fryedaddy on September 28, 2019, 05:35:52 PM

i had the same thing happen on a 390 about 5 years ago.it turned out to be a crack in the cylinder wall number 7.i hope thats not your case.

Title: Re: Headgasket/coolant
Post by: 67428GT500 on September 28, 2019, 09:57:57 PM

You can walk into any NAPA and pick up the kit that simply uses a fluid and changes colors if there is exhaust gases in the coolant. The only tear down it requires is the radiator cap for testing. This is the same one from Amazon. 36.00 to the door.
                                                                                                           -Keith
https://www.amazon.com/Block-Tester-BT-500-Combustion-Leak/dp/B06VVBSFTF/ref=asc_df_B06VVBSFTF/?tag=hyprod-20&linkCode=df0&hvadid=312177448019&hvpos=1o1&hvnetw=g&hvrand=13120905278838129827&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9027214&hvtargid=pla-570352767565&psc=1&tag=&ref=&adgrpid=61495038909&hvpone=&hvptwo=&hvadid=312177448019&hvpos=1o1&hvnetw=g&hvrand=13120905278838129827&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9027214&hvtargid=pla-570352767565