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Re: exhaust is so potent it hurts my throat [Re: RJS] #1696735
11/10/14 01:48 PM
11/10/14 01:48 PM
Joined: Aug 2003
Posts: 12,569
Sacramento, CA
cal_gecko Offline OP
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Sacramento, CA
checked the distributor .. it's still nice and tight.. all I did last night was pull a couple plugs and see that they look like this .. I did check in with the guy who dyno'd it and he's thinking it may be caused by the winter fuel mixture here in CA - says a lot of guys' cars run like crap on it..and the deposits on the plugs are most likely from the crappy gas. and now that the weather is cooler (70's), it might be running a bit leaner .. he's going to check his notes from our tune and give me a recommendation on different metering rods to help the AF ratio.

Unrelated .. something is spraying on the front drivers side of the engine ... not sure where it's coming from ... there's not really anything over there! White deposits from... something.

Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696736
11/10/14 01:49 PM
11/10/14 01:49 PM
Joined: Aug 2003
Posts: 12,569
Sacramento, CA
cal_gecko Offline OP
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..

8327058-IMG_2691.JPG (132 downloads)
Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696737
11/10/14 02:41 PM
11/10/14 02:41 PM
Joined: Jul 2005
Posts: 1,266
Penna
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70satelliteguy Offline
pro stock
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Penna

"something is spraying on the front drivers side of the engine"

Hope it is not a head gasket leaking from that side of the motor

Mike

Re: exhaust is so potent it hurts my throat [Re: lewtot184] #1696738
11/10/14 02:50 PM
11/10/14 02:50 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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Quote:

anti-freeze/water?




Those plugs would be steamed clean if that was the case.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696739
11/10/14 03:00 PM
11/10/14 03:00 PM
Joined: Apr 2012
Posts: 18,880
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RSNOMO Offline
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Quote:

something is spraying on the front drivers side of the engine ... not sure where it's coming from ... there's not really anything over there! White deposits from... something.





Bring it to OT, and get the pressure-tester out...

Re: exhaust is so potent it hurts my throat [Re: Supercuda] #1696740
11/10/14 03:02 PM
11/10/14 03:02 PM
Joined: Jun 2008
Posts: 3,456
usa
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lewtot184 Offline
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Quote:

Quote:

anti-freeze/water?




Those plugs would be steamed clean if that was the case.


not necessarily. looks like lime on the plugs to me.

Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696741
11/10/14 04:11 PM
11/10/14 04:11 PM
Joined: Dec 2006
Posts: 427
seattle Wa.
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Beebuzzn Offline
mopar
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seattle Wa.
I did a little work this weekend on a 1994 Mazda truck I have as it was running a little rough, the plugs looked identical to your pictures. My first thought was the gas. New blend for our west coast green states ? coolant level is right where it is supposed to be. Put new plugs and wires on runs much better. Plugs only had about 4k miles on them.

Re: exhaust is so potent it hurts my throat [Re: Beebuzzn] #1696742
11/10/14 07:27 PM
11/10/14 07:27 PM
Joined: Jun 2006
Posts: 5,053
CT
GTX MATT Offline
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The fuzzyness is from fuel additives


Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
Re: exhaust is so potent it hurts my throat [Re: GTX MATT] #1696743
11/10/14 10:09 PM
11/10/14 10:09 PM
Joined: Jan 2007
Posts: 7,664
IN
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ahy Offline
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Quote:

The fuzzyness is from fuel additives


... Or oil additives. I have seen similar on an engine with lose valves, poor seals and high oil consumption.

Re: exhaust is so potent it hurts my throat [Re: ahy] #1696744
11/11/14 10:11 PM
11/11/14 10:11 PM
Joined: Jan 2003
Posts: 1,635
Harriman NY
7
71GTX471 Offline
top fuel
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Harriman NY
try some AV fuel N see how it runs.

Re: exhaust is so potent it hurts my throat [Re: RSNOMO] #1696745
11/11/14 10:31 PM
11/11/14 10:31 PM
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Posts: 35,937
Lincoln Nebraska
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RapidRobert Offline
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Quote:

Bring it to OT, and get the pressure-tester out...


That's what I'd do, pump it up to 15 when hot and do a compression test. I believe that'll uncover something


live every 24 hour block of time like it's your last day on earth
Re: exhaust is so potent it hurts my throat [Re: RapidRobert] #1696746
11/12/14 05:03 AM
11/12/14 05:03 AM
Joined: Aug 2003
Posts: 12,569
Sacramento, CA
cal_gecko Offline OP
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Quote:

Quote:

Bring it to OT, and get the pressure-tester out...


That's what I'd do, pump it up to 15 when hot and do a compression test. I believe that'll uncover something




can you please explain? I thought the pressure tester was for the cooling system? How will doing a cooling system pressure check while doing a compression check show something?

Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696747
11/12/14 05:39 AM
11/12/14 05:39 AM
Joined: Apr 2012
Posts: 1,235
Phoenix, AZ
Jjs72D Offline
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Quote:



can you please explain? I thought the pressure tester was for the cooling system? How will doing a cooling system pressure check while doing a compression check show something?




I guess that you missed the post regarding the white specks on the engine and it possibly being a coolant issue. A cooling system pressure check may display a leak which may have led to the white specks.

Re: exhaust is so potent it hurts my throat [Re: Jjs72D] #1696748
11/12/14 05:55 AM
11/12/14 05:55 AM
Joined: Aug 2003
Posts: 12,569
Sacramento, CA
cal_gecko Offline OP
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Sacramento, CA
Quote:

Quote:



can you please explain? I thought the pressure tester was for the cooling system? How will doing a cooling system pressure check while doing a compression check show something?




I guess that you missed the post regarding the white specks on the engine and it possibly being a coolant issue. A cooling system pressure check may display a leak which may have led to the white specks.




OK... I can understand how doing a cooling system pressure check would help determine if that's an issue.. but how could doing a compression check at the same time show something? Just trying to understand what I'd be looking for ...thanks!

Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696749
11/14/14 09:54 PM
11/14/14 09:54 PM
Joined: Aug 2003
Posts: 12,569
Sacramento, CA
cal_gecko Offline OP
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Sacramento, CA
Think I may have found a culprit..

I decided to pull all the plugs to look at them (and replace them).. 7 of them looked like the images I posted previously.. then there was this one..

Am I correct in surmising that this was not firing? It was in the cylinder at the back of the engine on the drivers' side.. the hardest spark plug boot to get to, since the power brake booster is right in the way, and the plug boot rests against the header (I have fiberglass heat insulation boot on the plug boot)..

Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696750
11/14/14 10:30 PM
11/14/14 10:30 PM
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Lincoln Nebraska
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RapidRobert Offline
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Cal we were sayin to do the compression test AND the coolant pressure test (not at the same time). Not sure if the plug ain't firing or if it is fouled but I'd toss another one in (other 7 wouldn't hurt also) & see how it acts & I'd still do the pressure and compression tests cuz didn't you say earlier that something up front was sprayin out on the fender? EDIT I reread & it DID sound like I was sayin to do both at the same time

Last edited by RapidRobert; 11/15/14 02:30 AM.

live every 24 hour block of time like it's your last day on earth
Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696751
11/15/14 01:30 PM
11/15/14 01:30 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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Quote:

Think I may have found a culprit..

I decided to pull all the plugs to look at them (and replace them).. 7 of them looked like the images I posted previously.. then there was this one..

Am I correct in surmising that this was not firing? It was in the cylinder at the back of the engine on the drivers' side.. the hardest spark plug boot to get to, since the power brake booster is right in the way, and the plug boot rests against the header (I have fiberglass heat insulation boot on the plug boot)..




Looks oil fouled


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696752
11/15/14 07:20 PM
11/15/14 07:20 PM
Joined: Apr 2010
Posts: 10,544
omotive Engineer.
Golden-Arm Offline
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Quote:

the exhaust is getting really potent - burns the back of my throat when I'm driving




if you're getting gassed while driving, you have bigger problems. find out why the exhaust is coming into the cabin, before it takes you out. then fix it.


"When Tyranny Becomes Law, Rebellion Becomes Duty"

Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696753
12/04/14 06:09 PM
12/04/14 06:09 PM
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Posts: 710
Harrisburg Pa. 17112
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moparmikethree Offline
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My Challenger had the same problem. Ended up being a hole in the piston. Do a compression test

Re: exhaust is so potent it hurts my throat [Re: cal_gecko] #1696754
12/05/14 01:24 AM
12/05/14 01:24 AM
Joined: Jul 2008
Posts: 221
New Mexico, USA
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attaboy Offline
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New Mexico, USA
Had the same problem with my 440. Turned out to be a large vacuum leak around the intake manifold. Dribble some soapy water or spray some WD40 all around the intake manifold where it meats the heads while the motor is running. Should be able to see if there is a leak.

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