Yesterday I bought the RC12LYC plugs and replaced the old ones. We
started it up and let it run, thinking unless something pretty weird
was going on there probably wasn't a head gasket blown or crack in the
cylinder given the compression readings we observed. It smoked, but
not as bad as before. After running several minutes the smoke slowly
disappeared. Took it for a couple of mile test drive and it's got the
same power it had, no smoke or leaking.

I don't know if the smoke was from whatever was left over in the
engine after the tow or what. I had been apprehensive of running it
very long, thinking something else was blown and not knowing what
damage I might be doing.

Thank you for the tip on replacing the plugs, we hadn't thought of the
possibility they were the wrong ones. And thank you to everyone that
has helped us with this problem. My son's back to driving his Jeep
with that ear to ear grin on his face.

On Thu, 30 Dec 2004 13:43:24 -0800, L.W.(ßill) ------ III
<----------@***.net> wrote:

> Anytime you're within ten pounds of each other, the rings are OK.
> The deposits on the plugs tells us they're way too cold, carbon
>fouled, and they didn't get that way from one soaking in oil as in being
>pulled through with out ignition. Beware of anything sold as "Super" and
>the number doesn't cross at: http://www.clubplug.net/bosch_ngk.html
>Replace them with that your engine calls for, an American Champion
>RC12LYC spark plug:
>http://www.championsparkplugs.com/re...p?AAIA=1184655
> God Bless America, ßill O|||||||O
>mailto:-------------------- http://www.----------.com/
>
>dgassocdelete@pobox.com wrote:
>>

 

Yesterday I bought the RC12LYC plugs and replaced the old ones. We
started it up and let it run, thinking unless something pretty weird
was going on there probably wasn't a head gasket blown or crack in the
cylinder given the compression readings we observed. It smoked, but
not as bad as before. After running several minutes the smoke slowly
disappeared. Took it for a couple of mile test drive and it's got the
same power it had, no smoke or leaking.

I don't know if the smoke was from whatever was left over in the
engine after the tow or what. I had been apprehensive of running it
very long, thinking something else was blown and not knowing what
damage I might be doing.

Thank you for the tip on replacing the plugs, we hadn't thought of the
possibility they were the wrong ones. And thank you to everyone that
has helped us with this problem. My son's back to driving his Jeep
with that ear to ear grin on his face.

On Thu, 30 Dec 2004 13:43:24 -0800, L.W.(ßill) ------ III
<----------@***.net> wrote:

> Anytime you're within ten pounds of each other, the rings are OK.
> The deposits on the plugs tells us they're way too cold, carbon
>fouled, and they didn't get that way from one soaking in oil as in being
>pulled through with out ignition. Beware of anything sold as "Super" and
>the number doesn't cross at: http://www.clubplug.net/bosch_ngk.html
>Replace them with that your engine calls for, an American Champion
>RC12LYC spark plug:
>http://www.championsparkplugs.com/re...p?AAIA=1184655
> God Bless America, ßill O|||||||O
>mailto:-------------------- http://www.----------.com/
>
>dgassocdelete@pobox.com wrote:
>>

 

I was away so am a bit late on this one. Those are good readings as you
found out. Likely just junk left from the dragging burning off. ;-)

That gas mileage is really bad though.....

I just checked mine again on a 300 km each way trip and got a little
better than 11L/100km or over 23 US mpg.

This is in an 86 CJ7 fully loaded running at about 65 mph.

Mike

dgassocdelete@pobox.com wrote:
>
> Mike and John,
> Here's what we found. We bought an Actron compression gauge and
> checked the compression of each of the cylinders today:
>
> #1 151 psi
> #2 155 psi
> #3 152 psi
> #4 156 psi
>
> We cranked the engine about 8 times per check and the meter would go
> to the maximum reading after 2-3 revolutions.
>
> We took pictures of the plugs and posted them here if you want to have
> a look. I didn't see any oil today but on Sunday the #2 plug appeared
> to have some oil on it:
>
> http://public.webbox.com/680000/
>
> As we tested I watched the other 3 open plug holes and didn't see
> anything coming out.
>
> What do you think of those readings?
>
> On Mon, 27 Dec 2004 14:06:18 -0500, Mike Romain <romainm@sympatico.ca>
> wrote:
>
> >That is not a good thing...
> >
> >Anyway the pump quitting sounds like it is a coincidence or maybe when
> >the head gasket blew, the water went low and the pump bearings burned
> >out would be my guess.
> >
> >I would be pulling the plugs to see which one is really clean. This
> >clean one(s) will be the one with water in it.
> >
> >A compression test is in order. Testers are cheap and it can tell you
> >if it is a toasted head gasket or worse the rings or a piston broken
> >too.
> >
> >The head has to come off anyway by the sounds of it so doing a wet/dry
> >compression test can tell you about the rings usually. If the rings are
> >toast, the engine will need a rebuild
> >
> >White smoke is water, blue is oil, mix them and get bad news gray...
> >
> >Mike
> >86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >88 Cherokee 235 BFG AT's
> >

 

I was away so am a bit late on this one. Those are good readings as you
found out. Likely just junk left from the dragging burning off. ;-)

That gas mileage is really bad though.....

I just checked mine again on a 300 km each way trip and got a little
better than 11L/100km or over 23 US mpg.

This is in an 86 CJ7 fully loaded running at about 65 mph.

Mike

dgassocdelete@pobox.com wrote:
>
> Mike and John,
> Here's what we found. We bought an Actron compression gauge and
> checked the compression of each of the cylinders today:
>
> #1 151 psi
> #2 155 psi
> #3 152 psi
> #4 156 psi
>
> We cranked the engine about 8 times per check and the meter would go
> to the maximum reading after 2-3 revolutions.
>
> We took pictures of the plugs and posted them here if you want to have
> a look. I didn't see any oil today but on Sunday the #2 plug appeared
> to have some oil on it:
>
> http://public.webbox.com/680000/
>
> As we tested I watched the other 3 open plug holes and didn't see
> anything coming out.
>
> What do you think of those readings?
>
> On Mon, 27 Dec 2004 14:06:18 -0500, Mike Romain <romainm@sympatico.ca>
> wrote:
>
> >That is not a good thing...
> >
> >Anyway the pump quitting sounds like it is a coincidence or maybe when
> >the head gasket blew, the water went low and the pump bearings burned
> >out would be my guess.
> >
> >I would be pulling the plugs to see which one is really clean. This
> >clean one(s) will be the one with water in it.
> >
> >A compression test is in order. Testers are cheap and it can tell you
> >if it is a toasted head gasket or worse the rings or a piston broken
> >too.
> >
> >The head has to come off anyway by the sounds of it so doing a wet/dry
> >compression test can tell you about the rings usually. If the rings are
> >toast, the engine will need a rebuild
> >
> >White smoke is water, blue is oil, mix them and get bad news gray...
> >
> >Mike
> >86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >88 Cherokee 235 BFG AT's
> >

 

I was away so am a bit late on this one. Those are good readings as you
found out. Likely just junk left from the dragging burning off. ;-)

That gas mileage is really bad though.....

I just checked mine again on a 300 km each way trip and got a little
better than 11L/100km or over 23 US mpg.

This is in an 86 CJ7 fully loaded running at about 65 mph.

Mike

dgassocdelete@pobox.com wrote:
>
> Mike and John,
> Here's what we found. We bought an Actron compression gauge and
> checked the compression of each of the cylinders today:
>
> #1 151 psi
> #2 155 psi
> #3 152 psi
> #4 156 psi
>
> We cranked the engine about 8 times per check and the meter would go
> to the maximum reading after 2-3 revolutions.
>
> We took pictures of the plugs and posted them here if you want to have
> a look. I didn't see any oil today but on Sunday the #2 plug appeared
> to have some oil on it:
>
> http://public.webbox.com/680000/
>
> As we tested I watched the other 3 open plug holes and didn't see
> anything coming out.
>
> What do you think of those readings?
>
> On Mon, 27 Dec 2004 14:06:18 -0500, Mike Romain <romainm@sympatico.ca>
> wrote:
>
> >That is not a good thing...
> >
> >Anyway the pump quitting sounds like it is a coincidence or maybe when
> >the head gasket blew, the water went low and the pump bearings burned
> >out would be my guess.
> >
> >I would be pulling the plugs to see which one is really clean. This
> >clean one(s) will be the one with water in it.
> >
> >A compression test is in order. Testers are cheap and it can tell you
> >if it is a toasted head gasket or worse the rings or a piston broken
> >too.
> >
> >The head has to come off anyway by the sounds of it so doing a wet/dry
> >compression test can tell you about the rings usually. If the rings are
> >toast, the engine will need a rebuild
> >
> >White smoke is water, blue is oil, mix them and get bad news gray...
> >
> >Mike
> >86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >88 Cherokee 235 BFG AT's
> >