the hemi started smoking out the exh ?**update**
#1205233
03/28/12 05:34 PM
03/28/12 05:34 PM
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toplescuda
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At first i thought it was the intake not sealing as i had ran into the problem of having to to use 2 gaskets on the sided to fill the gap when i pulled the intake off i looked for signs of sucking oil in the runners but all were clean n dry i havent changed the break in oil yet its supper thin any chance its getting by??? its not really a blue smoke like a normal oil burner not black from rich and not really like a vapor from water it stareted doing it after putting the new exhaust(with x pipe) on the car so hard to tell what bank it coming from
Last edited by toplescuda; 03/29/12 12:41 AM.
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: toplescuda]
#1205234
03/28/12 05:49 PM
03/28/12 05:49 PM
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Dodgeguy101
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Quote:
At first i thought it was the intake not sealing as i had ran into the problem of having to to use 2 gaskets on the sided to fill the gap when i pulled the intake off i looked for signs of sucking oil in the runners but all were clean n dry i havent changed the break in oil yet its supper thin any chance its getting by??? its not really a blue smoke like a normal oil burner not black from rich and not really like a vapor from water it stareted doing it after putting the new exhaust(with x pipe) on the car so hard to tell what bank it coming from
Could it just be burning the paint off the new exhaust?
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Re: the hemi started smoking out the exh ?????
[Re: Dodgeguy101]
#1205235
03/28/12 06:01 PM
03/28/12 06:01 PM
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toplescuda
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No im pretty sure thats not it possible that oil from valve cover gaskets (cork) getting down between header and blow out the exh.????just a thought cause the valve cover gaskets are mega thick and im having to keep snuging thek down
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: Cudajon]
#1205237
03/28/12 08:24 PM
03/28/12 08:24 PM
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Joined: Jul 2010
Posts: 3,502 SOUTH JERSEY
HEMIFRED
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has the motor gotten badly flooded when first started or recently
home of the Sox and Martin Hemi Duster
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Re: the hemi started smoking out the exh ?????
[Re: toplescuda]
#1205238
03/28/12 08:45 PM
03/28/12 08:45 PM
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hemidup
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One of the last Hemi's I built smoked like a mother at the dyno at start up. The dyno operator even questioned me if I installed the second ring upside down. That's how bad it was. The smoking problem came from priming the engine prior to start up without without sparkplugs. After the dyno session the car ran its best times ever.
Jerry Williams.
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Re: the hemi started smoking out the exh ?????
[Re: hemidup]
#1205239
03/28/12 09:43 PM
03/28/12 09:43 PM
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Iv had it running couple times drove it off the trailer into muffler shop all is good got home frpm exhaust fired it up to back off trailer and it was puffing pretty good as mentioned before i just fig the intake finally sucked oil up into the port is it even possible header gasket oil soked form trying to get valve cover to seal if pulled plug would it show on plug this soon?
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: toplescuda]
#1205240
03/28/12 11:15 PM
03/28/12 11:15 PM
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HEMIFRED
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if leaking into intake port beware if detonation
home of the Sox and Martin Hemi Duster
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Re: the hemi started smoking out the exh ?????
[Re: HEMIFRED]
#1205242
03/28/12 11:44 PM
03/28/12 11:44 PM
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So your saying the plug may not he sealing well? tubes are brand new no washers on the spark plugs
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: toplescuda]
#1205243
03/29/12 12:13 AM
03/29/12 12:13 AM
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Ok went down and pulled a plug off each cyl on one bank they got burnt oil under the eletrode hhhh so sence the intake if off i looked into the ports at back side of the valve there is all kinds of oil puddeled up on top of each valve that is closed/sealed what the heck?
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: MR_P_BODY]
#1205245
03/29/12 12:35 AM
03/29/12 12:35 AM
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Man dude dont tell me that lol i had the valve springs replaced and gang raped me for over 700 bucks to just put new springs on and i know it had seals on it when i took it to them i do not want to pull this motor again or yank the heads to put seals on
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: toplescuda]
#1205247
03/29/12 12:43 AM
03/29/12 12:43 AM
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72swgnr
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Quote:
Man dude dont tell me that lol i had the valve springs replaced and gang raped me for over 700 bucks to just put new springs on and i know it had seals on it when i took it to them i do not want to pull this motor again or yank the heads to put seals on
Use compressed air to hold the valves up and replace them while the motor is in the car and the heads are still on
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Re: the hemi started smoking out the exh ?????
[Re: toplescuda]
#1205248
03/29/12 12:44 AM
03/29/12 12:44 AM
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You dont have to pull the heads or engine... but you would need the on head valve spring compressor and a air compressor to blow the cyl up
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Re: the hemi started smoking out the exh ?????
[Re: HEMIFRED]
#1205249
03/29/12 12:47 AM
03/29/12 12:47 AM
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Quote:
Quote:
Ok went down and pulled a plug off each cyl on one bank they got burnt oil under the eletrode hhhh so sence the intake if off i looked into the ports at back side of the valve there is all kinds of oil puddeled up on top of each valve that is closed/sealed what the heck?
both valves? intake and exhaust ?
LOL Fred... pretty hard to see the exhaust valve looking in the intake port... just messin with ya
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Re: the hemi started smoking out the exh ?**update**
[Re: toplescuda]
#1205251
03/29/12 02:15 AM
03/29/12 02:15 AM
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One side man thats a lot of oil i did notice that when took plugs out only one was tighter then snug few of them i could of took out by hand all tubes had a lot of oil in them even before i undid the plugs that cant be normal
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: B G Racing]
#1205256
03/29/12 01:02 PM
03/29/12 01:02 PM
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The heads have bout 30-40 hours on them was on a a street car when we bought them (old willys) they have never been cut except a .010 clean up on deck ports never been touched hard to see throught the springs but looks to have seals inplace the intake ports are dry and clean as a whistle how would oil be on inside of the tubes (all) even before i removed the plugs?
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: Hemi Allstate]
#1205260
03/29/12 06:13 PM
03/29/12 06:13 PM
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mbogina
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This appears to a ring seal problem and is typical when the intake runners are dry at the intake manifold face but yet the backside of the intake valve has oil on top of it. You typically wouldn't see THAT much oil on the intake valve even with NO valve seals AND loose guides.
Be a Rebel- Break the Laws of Physics!
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Re: the hemi started smoking out the exh ?????
[Re: mbogina]
#1205261
03/29/12 09:23 PM
03/29/12 09:23 PM
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What about from the plug tubes not being down tight iut of 16 spark plugs only one poped when took them out rest was like hand tight guiess from valve cover (cork) gasket relaxing
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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Re: the hemi started smoking out the exh ?????
[Re: toplescuda]
#1205262
03/29/12 10:19 PM
03/29/12 10:19 PM
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Cudajon
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In all my years working on Hemi's I've never seen oil leak past the sparkplugs into the cylinder. It only occurs when you pull the plugs and if the aluminum tube retainer is pulled up before the oil is wiped away around it. Since you are where you are at pull the number 1 cylinder intake valve spring and see what you are dealing with. You need a valve spring compressor, mine is a sunpro or something like that, cheap. It has a screw top and legs that hook into the spring. Screwing the top down with the legs in the spring compresses it. You also need a pencil magnet and about a foot of 1/4" nylon rope. Bring the engine up on No 1 compression, both int and exh will be closed. Use a piece of soft wire and feed an inch or so of the rope thrpogh the sparkplug hole under the intake valve. This will keep the valve if it drops from hitting the piston. The valve can only drop a half inch or less before the piston stops it. Since the valve job is brand new the keepers shouldn't be frozen in the valve retainer. Ust the valve spring compressor and compress the valve. Usually the spring comes up, push down on the compressor and it should free up the keepers. Use the pencil magnet to remove them. Its a good idea to put a shop rag around the valve, sometimes my palsey kicks in I get the shakes and will knock one off the magnet. now you can lift the spring and retainer off the valve. IF you have umbrella valve seals pull the head and go get some of the good teflon ones that require the valve guides to be milled for them to attach too. Now comes the hard part. If they are the good type guides, (they'll have a metal band around the top and bottom to firmly grip the valve stem and guide) look to see if they are new. Do not remove the seal yet! If the springs were replaced any competent shop will replace the seals at the same time. See if they look like the retainer may have contacted the top. Take a hold of the valve stem and slowly slide the valve up and down. It should not slid to easily, if it drops immediately when you removed the keepers then its probably bad seals. Now the good news, you can replace these your self. Simply get a set and do each valve one at a time. Make sure you use the plastic protector on the valve when you push the new seal down. If you are going to do this, go ahead and remove the seal your looking at. Once you pull it up over the valve stem, its ruined. The groves in the valve will destroy the seals ability to control oil. Good luck dude, wish I was there to help ya. I'm sure the crew will chime in on anything I missed. Forgot two things. If it still has springs between the rocker arms You can back off the adjuster till the ball and socket clear and then you can move the rocker out of the way of the push rod, rotate it up and out of the way. That way you want have to remove the whole rocker arm assembly. If it has locks or shims you'll probably have to do that. Second if everything looks good replace the valve spring and run a compression test. You could have a broken ring. But I'd place my money on valve seals. A compression test isn't a bad idea anyway.
Last edited by Cudajon; 03/29/12 10:52 PM.
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Re: the hemi started smoking out the exh ?????
[Re: Cudajon]
#1205263
03/29/12 10:47 PM
03/29/12 10:47 PM
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Posts: 28,312 Cincinnati, Ohio
Challenger 1
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Quote:
You need a valve spring compressor, mine is a sunpro or something like that, cheap. It has a screw top and legs that hook into the spring. Screwing the top down with the legs in the spring compresses it.
It appears he has dual springs, that style compressor won't work.
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