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Old 03-22-2020, 01:12 PM   #1
Heard
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Default Well...this ain't good

What a fabulous day here in central Florida for drive in the coupe. Or so I thought. Got about 6 miles from the house when I heard a pretty loud BANG! then some godawful noise. I thought maybe I had blown a tire. Nope.

Blew the plug clean out of the head. I knew these Eddie Meyer heads were a little sketchy when I bought the car. I guess they are REALLY sketchy now.

They may become wall hangers after I see just how much corrosion there is.
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Old 03-22-2020, 01:37 PM   #2
flatheadmurre
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Default Re: Well...this ain't good

Can´t really blame a stripped plug thread on corrosion...
Put in a timesert thread insert and be back on the road in notime
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Old 03-22-2020, 01:42 PM   #3
corvette8n
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Default Re: Well...this ain't good

It's called cylinder deactivation, Caddy used it on their 4-6-8 motors lol.

I fixed a Briggs & Stratton lawnmower with an insert, worked for years until I wore it out.
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Old 03-22-2020, 02:15 PM   #4
tubman
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Default Re: Well...this ain't good

I have repaired these with "Heli-Coils" and have had no problems. From everything I have heard, "Time-Serts" are superior. You may be all right, most of the stripped threads on spark plugs I experienced have been the result of crap not cleaned out and a large Flex-Handle.
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Old 03-22-2020, 02:22 PM   #5
RKS.PA
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Default Re: Well...this ain't good

Hoping you were able to "limp" it home?
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Old 03-22-2020, 03:13 PM   #6
Ggmac
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Default Re: Well...this ain't good

Stick a whistle in it . Making the best , almost . Love the car wanto trade ?
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Old 03-22-2020, 03:18 PM   #7
KiWinUS
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Default Re: Well...this ain't good

Quote:
Originally Posted by flatheadmurre View Post
Can´t really blame a stripped plug thread on corrosion...
Put in a timesert thread insert and be back on the road in notime
Heard follow flatheadmurre’s direction. As always he is spot on with the correct fix.
Good luck.
Cheers
Tony
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Old 03-22-2020, 04:40 PM   #8
19Fordy
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Default Re: Well...this ain't good

Were the threads actually stripped? Could it have been that the plug was loose?
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Old 03-22-2020, 04:51 PM   #9
alanwoodieman
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Default Re: Well...this ain't good

all used aluminum heads are subject to do that, last set I put on had 4 bad or suspect plug threads so I did all 8 with inserts to keep from what happened to you
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Old 03-22-2020, 04:53 PM   #10
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Default Re: Well...this ain't good

Let the Flathead fun continue. Drive/Fix/Repeat. Sometimes it's Buy/Fix/Repeat. Pretty sure a cuss nd a band-aid has to be in there somewhere.

Heard, is it only the head/plug, did the hood escape damage? Sweet looking ride!
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Old 03-22-2020, 05:12 PM   #11
Heard
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Default Re: Well...this ain't good

Thanks for the encouragement guys. No damage otherwise. Had a bunch of folks stop to help. Then I realized they were just wanting to see the car which was cool with me.

And no, I wasn't suggesting corrosion caused this. I should have clarified that I suspect there is corrosion other places.
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Old 03-22-2020, 05:13 PM   #12
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Default Re: Well...this ain't good

Sorry to hear of your trouble.
Nice 3 window, by the way.
Hope you're able to get her up and running.
I wish I had the weather your having today to go for a cruise.
Another month.....maybe..
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Old 03-22-2020, 05:22 PM   #13
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Default Re: Well...this ain't good

As others have pointed out, I wouldn't hesitate in using Heli-Coils or other makes of thread repair system. If you aren't comfortable doing it, a machine shop can easily do the job for you.
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Old 03-22-2020, 05:49 PM   #14
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Default Re: Well...this ain't good

Another brand that I don't already see mentioned.... KD
I've used, with good results. Only problem is, when you later want to remove the plug, the insert will also come out.
And, I'm sure you already know, only remove plugs from aluminum heads, cold, like overnight cold, stone cold.
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Old 03-22-2020, 06:01 PM   #15
aussie merc
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Default Re: Well...this ain't good

welcome to the world of alloy heads not many get looked after like they should but the majority survive ,there tougher than they look. not many actualy torque plugs when fitting them less actually use an antisize and even lessactualy wait till their cold . [ i can imagine trying to tell a customer they have ti loose their car overnight just so i can change the plugs : let me know how that works out: just repair the thread and keep on enjoying your ride
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Old 03-22-2020, 07:06 PM   #16
bobH
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Default Re: Well...this ain't good

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Originally Posted by aussie merc View Post
welcome to the world of alloy heads not many get looked after like they should but the majority survive ,there tougher than they look. not many actualy torque plugs when fitting them less actually use an antisize and even lessactualy wait till their cold . [ i can imagine trying to tell a customer they have ti loose their car overnight just so i can change the plugs : let me know how that works out: just repair the thread and keep on enjoying your ride
I worked at a dealership during the 50's and 60's. Many of the makes we carried, were european, with aluminum heads. And, yes, the customer had to leave the car overnight. Probably wouldn't fly well today, but back then, that was the way it was. As a wrench, I did as the boss wanted. And, I wouldn't touch a plug on a warm engine. And, I wasn't about to face the consequences if I pulled some plug threads in a way that the boss didn't approve. Also, back then, we hadn't yet heard of the various inserts that are available today.
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Old 03-22-2020, 07:28 PM   #17
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Default Re: Well...this ain't good

I never heard of leaving it to go cold. I'll try and follow that in the future. Never used anti-seize either! You learn something new every day.

Mart.
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Old 03-22-2020, 09:12 PM   #18
skidmarks
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Default Re: Well...this ain't good

Thats a easy in the car fix.

That V10 ford had for awhile were good for the same issue and a lot hard to get to.

I like the nickle-ease supposed to be good for higher temperature.
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Old 03-22-2020, 10:40 PM   #19
deuce_roadster
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Default Re: Well...this ain't good

Glad the problem you encountered has a fairly easy solution. I had an outboard motor do the same thing and wondered what the explosion was.
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Old 03-23-2020, 02:05 AM   #20
V8COOPMAN
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Default Re: Well...this ain't good

Quote:
Originally Posted by Heard View Post
What a fabulous day here in central Florida for drive in the coupe. Or so I thought.

Blew the plug clean out of the head. I knew these Eddie Meyer heads were a little sketchy when I bought the car. I guess they are REALLY sketchy now.

Man, some guys will do anything to get their car noticed on the internet...…so, let me help! DD


The other side of Heard's really cool l'il 3-window!







The bottom end ain't too shabby, either!



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