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Re: 1989 318 overheating at idle [Re: convx4] #2586271
12/02/18 08:05 PM
12/02/18 08:05 PM
Joined: Feb 2005
Posts: 709
St Louis, MO 63026
convx4 Offline OP
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Today's work included: no lunch and

Pulling the plugs #6 was white on one side all the others were black.

Got half way thu the compression check when the needle stopped moving on my gauge. Had to fix that so Im not sure if the numbers are I got are accurate.

On the second go around the #6 was 20 lbs lower.

So I then took a flat head screwdriver and poked at the weeping freeze plug. It easily went tru causing a hole.

With that I decided to pull the motor with the transmission attached.

I cut out the catalytic converter. The core was tight on the motor side but was loose on the rear end side. It will be replaced.

With the radiator out. I was able to get the engine and transmission out with the hood on. By myself. I don't think it will be going back in that way. Shelby must have removed the core support. I guess I could do that but I'm running out of space to parts.

Next week end I'll find time to remove the heads.

Re: 1989 318 overheating at idle [Re: convx4] #2586890
12/04/18 02:27 AM
12/04/18 02:27 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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^^^ I wish I had your ambition!


live every 24 hour block of time like it's your last day on earth
Re: 1989 318 overheating at idle [Re: convx4] #2586927
12/04/18 07:44 AM
12/04/18 07:44 AM
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Posts: 21,473
N.E. OHIO, USA
A12 Offline
Too Many Posts
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I read your thread a little too late to have you check the radiator temp in all of the location to see if there were any colder or lower temperatures in any location. I had an overheat issue with my Road Runner and went through pretty much the same checks as you, even flushing the radiator. I'm at my friends place and just pulled into his driveway and had told him about the overheating issues and what I had tried. He walks back into his garage and comes out with his infrared heat gunn, opens my hood and within a matter of seconds shows me how 75% of my radiator is almost ambient temperature and the other 25% is really hot. "plugged" radiator down inside the veins where you really couldn't see even with a scope. With the radiator out I don't know if you can fill it with hot water and find where it doesn't raise the radiator temp or not. It was real obvious with engine running to see the difference in radiator (coolant) temperature. Had me fooled as the radiator was restored on the outside and looking new but was badly plugged and flow restricted on the inside.....new radiator core fixed it as it was so badly plugged. Oh and there is a method to check the coolant to see if there is a compression leak getting into the coolant.......works "most" of the time.

Re: 1989 318 overheating at idle [Re: convx4] #2587264
12/04/18 11:49 PM
12/04/18 11:49 PM
Joined: Dec 2005
Posts: 1,149
Cruising!
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QuickDodge Offline
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Cruising!
One other issue could be a plugged exhaust system. I know you checked the converter, but there could be a problem somewhere else in the exhaust system. (Restricted / plugged muffler, pinched pipe, etc.)

If you can do so, run the engine to see if it overheats before hooking up the exhaust. I doubt this is the problem, but sometimes strange problems occur.

Re: 1989 318 overheating at idle [Re: convx4] #2587909
12/06/18 02:35 AM
12/06/18 02:35 AM
Joined: Jan 2003
Posts: 10,483
Freeport IL USA
poorboy Offline
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A converter that has a piece broken off can plug the exhaust if the broken pieces turn the wrong way. The converter piece has small holes the exhaust passes through. When it breaks, it can roll and block off the exhaust flow through part or all of the holes in the the surface. Rattling inside the converter means those pieces are flopping around at are blocking at least part of the exhaust flow some of the time. Your exhaust flow can be part of your problem.

A partially plugged radiator could also be part of your problem.

Have you cleaned between the AC condenser and the front of the radiator? I've seen an amazing amount of stuff accumulate between the radiator and the condenser. That will also cause over heating at an idle.

If you are replacing the freeze plugs, there are 2 on a small block between the motor and trans. I would replace both of those as well.

Shelby probably didn't have the front sheet metal on the truck when they installed the motor. Gene

Re: 1989 318 overheating at idle [Re: poorboy] #2588774
12/07/18 09:03 PM
12/07/18 09:03 PM
Joined: Jan 2011
Posts: 15,713
Central Florida
larrymopar360 Offline
Stud Muffin
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You'll get it all sealed up and running good now that it's out, I'm sure. Did that with the 360 in my Power Wagon. Freeze plug at rear meant either engine or transfer case had to come out on mine, and engine seemed like the way to go. So much more could get done. Before and After.

PWengine.jpgMy360truck.JPG

Facts are stubborn things.
Re: 1989 318 overheating at idle [Re: larrymopar360] #2591062
12/12/18 09:52 PM
12/12/18 09:52 PM
Joined: Jan 2011
Posts: 15,713
Central Florida
larrymopar360 Offline
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Update us. Are you plugging and painting grin

Oil pan.JPG

Facts are stubborn things.
Re: 1989 318 overheating at idle [Re: convx4] #2609111
01/19/19 08:03 PM
01/19/19 08:03 PM
Joined: Feb 2005
Posts: 709
St Louis, MO 63026
convx4 Offline OP
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Sorry for not updating.
With the engine out and on a stand I pulled the intake and heads.
Removed the freeze plugs and cleaned out the block passageways with compressed air.
Reinstalled freeze plugs.
The original head gaskets were installed.
Pulled the valves and cleaned them and replaced the seals.
No machining was done.
New felpro head gaskets were installed along with ARP head bolts.
The gaskets blocked the top front water thru the head. Felpro states improved cooling. We will see. Re installed intake.
Pulled oil pan cleaned installed new gasket.
The engine was not painted. It would make the rest of the truck look bad if it was painted.

Installed motor by its self. Then installed transmission.

Things were on a roll.

I had two weeks vacation starting the week of Christmas. Two days before I came down with the flu. It hit me hard, I don't do the flu shots. No one else in the family got sick. After 5 days of not sleeping and not eating my fever broke. I drank a lot of water so not to become dehydrated. Then I think because of my fever I had open sores in my moth and throat. This was called a virus at the doc in the box around the corner. Another five days of not eating.
So I made my self go out and work on the truck before the weather changed.

I finished installing the radiator hoses and such. Corrected some vacuum lines. I left off the air pump and blocked the ports on the manifolds. I plan on keeping the EGR system in place.

All this work out in the cold barn kinda made me not recover so much, didn't feel energized.

Took a break.

I still need to:
Weld up some pipe to connect the Y-pipe to the muffler.
Fill fluids.
Install grill.
Test temperature gauge -have a home made deal wanting to try out.
Fire up

Plan on using a temp gun to check for hot cold spots in the radiator at start up.

Sorry for the late update. Maybe I will get to work on things tomorrow.

IMG_2043 (Medium).JPGIMG_2053 (Medium).JPGIMG_1999 (Medium).JPGIMG_2020 (Medium).JPG
Re: 1989 318 overheating at idle [Re: convx4] #2609316
01/20/19 02:00 PM
01/20/19 02:00 PM
Joined: Sep 2003
Posts: 19,237
north of coder
moparx Offline
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pretty ingenious way of installing the transmission ! up
got a close up shot of how you mounted the transmission jack saddle on the engine lift tube by chance ?
beer

Re: 1989 318 overheating at idle [Re: convx4] #2609370
01/20/19 04:05 PM
01/20/19 04:05 PM
Joined: Jan 2011
Posts: 15,713
Central Florida
larrymopar360 Offline
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Great progress! Sorry you got hit with that virus. A bunch of people at work knocked down with one. Keep up the good work!


Facts are stubborn things.
Re: 1989 318 overheating at idle [Re: convx4] #2609516
01/20/19 08:34 PM
01/20/19 08:34 PM
Joined: Feb 2005
Posts: 709
St Louis, MO 63026
convx4 Offline OP
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This is how I made my transmission jack:
I work alone so I have to work smarter.
I bought a harbor freight transmission adapter for a floor jack. It has a steel peg out the bottom. So I just used a hole saw to cut a hole in the top of the arm of the cherry picker. To make sure the adapter does not come off I drilled and tapped a hole for a bolt to hold it down. In combination with the two post lift my cherry picker is now a versatile machine that does more than take up space. Some days I think of quitting my job and start rebuilding Mopar transmissions because this makes it so easy.

If this is not close up enough let me know.

IMG_2046 (Medium).JPG
Re: 1989 318 overheating at idle [Re: moparx] #2609729
01/21/19 02:42 AM
01/21/19 02:42 AM
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Lincoln Nebraska
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RapidRobert Offline
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Quote:
pretty ingenious way of installing the transmission ! up
X2 tho I dont think it would make me wanna quit a day job!


live every 24 hour block of time like it's your last day on earth
Re: 1989 318 overheating at idle [Re: convx4] #2609865
01/21/19 02:11 PM
01/21/19 02:11 PM
Joined: Sep 2003
Posts: 19,237
north of coder
moparx Offline
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pic shows what i needed to know. thanks !
beer

Re: 1989 318 overheating at idle [Re: convx4] #2609947
01/21/19 04:45 PM
01/21/19 04:45 PM
Joined: Feb 2005
Posts: 709
St Louis, MO 63026
convx4 Offline OP
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I enjoy the community of Moparts that's one reason I post and up date my posts.

So all things buttoned up and the truck runs. Only ran it for a few to check for leaks.

One thing I did notice was that there was water from the tail pipe.

Sorry no picture

I checked my log book and the last time I fueled up was 7-14-18.

Next weekend I hope to have some tile to run it around and to get it up to temperature.

I'll take a picture of the water from the tail pipe also.

Re: 1989 318 overheating at idle [Re: convx4] #2610387
01/22/19 01:29 PM
01/22/19 01:29 PM
Joined: Sep 2003
Posts: 19,237
north of coder
moparx Offline
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hopefully, the tailpipe water is just condensation.
beer

Re: 1989 318 overheating at idle [Re: convx4] #2612708
01/26/19 07:07 PM
01/26/19 07:07 PM
Joined: Feb 2005
Posts: 709
St Louis, MO 63026
convx4 Offline OP
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Ok.
I was able to fire up the truck and let it run.
Before start up I placed a clean sheet of cardboard down under the tail pipe. At first I did not touch the throttle. No water from pipe. Now I did not let the truck fully warm up. Could not see any exhaust.
I then revved up the truck some not to much. Water from the tailpipe and could see the exhaust. This continued all the way thru warm up and the fans turning on.
See pictures.

Well on the cardboard there was water with a little soot in it.

I had to know was it water or antifreeze. So I tasted it. No taste-water.

So as suggested I used a temperature gun all around the radiator. Hot at the top and cold down below. One or two spots on the ends at top that were not as hot as everywhere else.
The thermostat was holding its own at 195 degrees. Moving the temp gun around the heads and freeze plugs things looked acceptable.
O yeah the out side temps were in the mid 20's.

If I can borrow the temp camera I will see what it shows.

My plan is to drive it so the old fuel is removed and add fuel- tron additive to the next tank. I all ways run premium.

If any thing else comes up I'll past again.



IMG_2283 (Medium).JPGIMG_2287 (Medium).JPG
Last edited by convx4; 01/26/19 07:09 PM.
Re: 1989 318 overheating at idle [Re: convx4] #2612717
01/26/19 07:32 PM
01/26/19 07:32 PM
Joined: Jan 2003
Posts: 8,666
Buford, GA
I_bleed_MOPAR Offline
master
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Buford, GA
Looks like "cold smoke" to me. Condensation in the exhaust system causes it and the water that drips out of the tailpipe. Normal. up


Tim


'71 Charger 383/727
'17 Challenger SXT (Wifeys car wink )
Re: 1989 318 overheating at idle [Re: convx4] #2612734
01/26/19 08:05 PM
01/26/19 08:05 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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I've seen cars dripping like a faucet in traffic (I would think no eng problem from the # of em I have seen). On a side note I drill a very small hole in the lowest bends of the exhaust front to rear so water can drip out & not set there & rust tho I have never had an ex system rust out.


live every 24 hour block of time like it's your last day on earth
Re: 1989 318 overheating at idle [Re: convx4] #2612785
01/26/19 09:53 PM
01/26/19 09:53 PM
Joined: Sep 2007
Posts: 14,889
up yours
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I fit don't smell like burning coolant (assuming you have coolant in the cooling system) I don't worry about it.


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.
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