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PostPosted: Sat Feb 20, 2010 8:13 am 
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EFI Slant 6

Joined: Thu Nov 14, 2002 11:29 am
Posts: 499
Location: Corning, CA - middle of nowhere
Car Model:
http://s89.photobucket.com/albums/k207/ ... motor%201/

The above link is pics of the head and block.
The obvious problem is the head gasket on 6 showing a bit of a problem.
Number 3 shows as having a little burning on it's top and then there are the valves that show up as light. What I find interesting is that there is nothing on any of the piston walls - they all look clean and shiny - no grooves etc. The valves also "feel" lilke nothing is wrong with them - when I run my finger over them - they all feel the same - no "sinking" etc.

Okay - so tell me what I did wrong and what - besides a new head gasket and intake and exhaust gasket do I have to do next??

Thanks,
Dan

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"I may be slow, but at least I'm not very fast!"
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PostPosted: Sat Feb 20, 2010 8:49 am 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
Posts: 13115
Location: Fircrest, WA
Car Model: 76 D100
Get a head with the revised combustion chamber and hardened exhaust seats?

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PostPosted: Sat Feb 20, 2010 8:54 am 
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EFI Slant 6

Joined: Thu Nov 14, 2002 11:29 am
Posts: 499
Location: Corning, CA - middle of nowhere
Car Model:
Reed - ??????

That head was checked, decked, ported and polished and all new everything - 5 yrs ago

You telling me I "screwed up" again???

lol - just par for my course I guess!?!?!

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"I may be slow, but at least I'm not very fast!"
'69 A108 - 225, 727, 3.55, MSD6AL, a.k.a.-the brick
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PostPosted: Sat Feb 20, 2010 9:37 am 
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Guru
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Joined: Sat Oct 12, 2002 11:22 am
Posts: 3740
Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
Pour a little gas into each cylinder and each combustion chamber and see if it drains right thru on stays in a puddle.

If it drains thru fast, it's time to check for broken rings or bad valve seat sealing.

You should resurface the block and head before replacing the head gasket, or at least spend some time on it with a long, flat sanding block.
Doing that will show high & low spots on the surfaces.
DD

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PostPosted: Sat Feb 20, 2010 9:42 am 
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EFI Slant 6

Joined: Thu Nov 14, 2002 11:29 am
Posts: 499
Location: Corning, CA - middle of nowhere
Car Model:
Doc - when I put it together it looked as clean as the pic you posted.
I will go out and do the gas check right away.

I have $50 in the bank - talk about doing this on a budget!

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"I may be slow, but at least I'm not very fast!"
'69 A108 - 225, 727, 3.55, MSD6AL, a.k.a.-the brick
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PostPosted: Sat Feb 20, 2010 9:56 am 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7834
Location: Portland-ish
Car Model: Fiat 500e
Like Doc says, make sure the block and head are flat. Also make sure the timing and mixture is correct so you aren't getting detonation as that will kill a head gasket in a hurry.

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Joshua


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PostPosted: Sat Feb 20, 2010 10:04 am 
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EFI Slant 6

Joined: Thu Nov 14, 2002 11:29 am
Posts: 499
Location: Corning, CA - middle of nowhere
Car Model:
Doc - gas is sitting in the head and cylinders - nothing moving at all

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"I may be slow, but at least I'm not very fast!"
'69 A108 - 225, 727, 3.55, MSD6AL, a.k.a.-the brick
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PostPosted: Sat Feb 20, 2010 10:19 am 
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Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24522
Location: North America
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Quote:
Get a head with the revised combustion chamber and hardened exhaust seats?
H'mm. How do you figure? I don't see evidence of a burned valve, do you? The combustion chamber (revised or otherwise) has nothing to do with whatever failures occurred in this engine, and a full rebuild of any head, regardless of whether it originally had the surface hardening of the exhaust seat area, includes the installation of hard exhaust seats.

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PostPosted: Sat Feb 20, 2010 10:28 am 
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EFI Slant 6

Joined: Thu Nov 14, 2002 11:29 am
Posts: 499
Location: Corning, CA - middle of nowhere
Car Model:
yea Dan - that was all done in the original rebuild -

I am still at a loss now as to what happened with the damn thing - still think it is the stupid carb - maybe it dumped a bunch of gas into the engine and combined with an out of adjustment valve?? - Although whenever I checked the valves - and I usually kept up with them - at least every couple of months - they always showed very little "outta" adjustment.

And - again because of me running it at high rpms' pretty regularly - I always felt - and again this is just me - I KNOW NOTHING, I SEE NOTHING, - I sorta always worried that the valves were floating at times?? Yea I know - but I'm weird as you may already know.

Now I need new head gasket, intake exhaust gasket, another $35.00 worth of oil etc - along with cleaning and re-installing all this - damn it.
Back is in such bad shape right now I can hardly sit here.

Where do I get gaskets? - ya'll know better than I

_________________
"I may be slow, but at least I'm not very fast!"
'69 A108 - 225, 727, 3.55, MSD6AL, a.k.a.-the brick
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PostPosted: Sat Feb 20, 2010 10:46 am 
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EFI Slant 6

Joined: Thu Nov 14, 2002 11:29 am
Posts: 499
Location: Corning, CA - middle of nowhere
Car Model:
Okay - just looked again - #3 valves - have completely emptied of the gas - the others are down a bit but not empty like #3 - that was one of the low compression readings - #6 I know was the head gasket and it still shows gas. All the pistons kept gas in them - very little leaking - although it has gone down for sure - but I figure after 1/2 an hour it would drain through the rings?

_________________
"I may be slow, but at least I'm not very fast!"
'69 A108 - 225, 727, 3.55, MSD6AL, a.k.a.-the brick
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PostPosted: Sat Feb 20, 2010 11:02 am 
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Guru
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Joined: Sat Oct 12, 2002 11:22 am
Posts: 3740
Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
Yes, after a period of time, the gas will drain thru the ring gaps and evaporate.

The test showed you what you needed to know.
You can try tapping on the #3 valve stem tips to ensure they on solid on their seats, then test again.

If it still drains fast, it is time to remove the exhaust valve and inspect the seat. (start with the exhaust valve, then do the intake if you don't find a problem with the exhaust valve seat surface)

Apply some Dye-Chem to the cleaned seat area (or use a marking pen) to color the seat then use lapping compound and work the valve around on the seat. That will quickly show you any seat problems.
DD


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PostPosted: Sat Feb 20, 2010 11:26 am 
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EFI Slant 6

Joined: Thu Nov 14, 2002 11:29 am
Posts: 499
Location: Corning, CA - middle of nowhere
Car Model:
Thanks Doc - so now I need to find a place to buy - a tool to remove the valves, chemicals to check the seats and lapping compund. hmmmm

with no vehicle to get to town - 24 miles 1 way - and no money to buy that stuff with - I guess it may be awhile till I can go any further with this.

where is the best place to get gaskets for this?

thanks again ya'll

Dan

_________________
"I may be slow, but at least I'm not very fast!"
'69 A108 - 225, 727, 3.55, MSD6AL, a.k.a.-the brick
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PostPosted: Sat Feb 20, 2010 12:04 pm 
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Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24522
Location: North America
Car Model:
It is very much worth your while to get the good gaskets for the manifolds-to-head and intake-to-exhaust junctions.

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Too many people who were born on third base actually believe they've hit a triple.

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PostPosted: Sat Feb 20, 2010 12:23 pm 
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Turbo Slant 6
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Joined: Tue May 01, 2007 1:59 pm
Posts: 830
Location: joyce wa
Car Model:
FelPro for the head gasket of course and you can get the valves out with a deep socket and hammer.That will let you start looking at the valves and seats and worry about putting it back together with proper tools when money and proper tools are available :wink: Oh and if that old van is just to much of a PITA let me know when you want to give it away :lol:

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PostPosted: Sat Feb 20, 2010 1:20 pm 
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EFI Slant 6

Joined: Thu Nov 14, 2002 11:29 am
Posts: 499
Location: Corning, CA - middle of nowhere
Car Model:
okee dokee

Doc - did the tap thing and retested - gas stayed in even longer - had to rag it out

Vanner - not a problem - 5g's and I'll deliver it!!!!

SlantSixDan - already checked that site out - last time the pages were even updated was 2007?? - They still around and is there someplace closer to get them??

felpro - for the head gasket - okay NAPA it is then

_________________
"I may be slow, but at least I'm not very fast!"
'69 A108 - 225, 727, 3.55, MSD6AL, a.k.a.-the brick
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