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Iron duke white smoke out of exhaust, misfire and top end rattle by Fadingaway
Started on: 02-15-2014 12:32 PM
Replies: 8 (344 views)
Last post by: White 84 SE on 08-28-2014 11:00 AM
Fadingaway
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Report this Post02-15-2014 12:32 PM Click Here to See the Profile for FadingawayClick Here to Email FadingawaySend a Private Message to FadingawayEdit/Delete MessageReply w/QuoteDirect Link to This Post
I'm guessing these are my symptoms of a collapsed lifter? It will run like crap, I let it warm up shut it off again and it runs like a champ what the hell is going on with this thing
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theogre
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Report this Post02-15-2014 01:00 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
Year?

White smoke? Maybe blow head gasket.
Antifreeze can kill the cat and maybe O2 sensor too.

older years have weak head bolts that can blow head gasket.

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Fadingaway
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Report this Post02-15-2014 03:11 PM Click Here to See the Profile for FadingawayClick Here to Email FadingawaySend a Private Message to FadingawayEdit/Delete MessageReply w/QuoteDirect Link to This Post
Its a 1984, its white smoke but it reeks of gasoline, spark plug #4 is black and the others are clean. The exhaust hits the snow and turns the snow into soot. I've replaced the IAC MAP fixed the overheating problem (radiator fan wasn't working). Only when the motor would overheat on the dash would it run nice and smoothe
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White 84 SE
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Report this Post08-27-2014 05:06 AM Click Here to See the Profile for White 84 SEClick Here to Email White 84 SESend a Private Message to White 84 SEEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Fadingaway:

Its a 1984, its white smoke but it reeks of gasoline, spark plug #4 is black and the others are clean. The exhaust hits the snow and turns the snow into soot. I've replaced the IAC MAP fixed the overheating problem (radiator fan wasn't working). Only when the motor would overheat on the dash would it run nice and smoothe


What did this problem turn out to be? It sounds like it likely a stuck valve in #4. Likely carbon build up. Is that what is was? I got an 84 that is smoking...I am thinking piston rings in my case. Good Luck.
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Neils88
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Report this Post08-27-2014 11:12 AM Click Here to See the Profile for Neils88Click Here to Email Neils88Send a Private Message to Neils88Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by White 84 SE:


What did this problem turn out to be? It sounds like it likely a stuck valve in #4. Likely carbon build up. Is that what is was? I got an 84 that is smoking...I am thinking piston rings in my case. Good Luck.


Do a wet/dry compression test. This will tell you the condition of rings, cylinders and valves.
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TONY_C
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Report this Post08-27-2014 11:58 AM Click Here to See the Profile for TONY_CSend a Private Message to TONY_CEdit/Delete MessageReply w/QuoteDirect Link to This Post
White smoke sounds like you have coolant getting into the cylinders, could be a head gasket or cracked head. If the rings are shot, you will get some pretty bad blow-by. Check the air cleaner housing for excess oil. Also, with the engine running, remove the oil fill cap and see how much air pressure there is coming from the opening. Bad rings will cause the combustion gasses into the crankcase and you will have a pretty good puff coming out.
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Blacktree
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Report this Post08-27-2014 12:48 PM Click Here to See the Profile for BlacktreeClick Here to visit Blacktree's HomePageClick Here to Email BlacktreeSend a Private Message to BlacktreeEdit/Delete MessageReply w/QuoteDirect Link to This Post
Guys, this is a 6 month old thread. I seriously doubt the guy is still trying to figure out what's wrong with the car.
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Neils88
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Report this Post08-27-2014 01:40 PM Click Here to See the Profile for Neils88Click Here to Email Neils88Send a Private Message to Neils88Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Blacktree:

Guys, this is a 6 month old thread. I seriously doubt the guy is still trying to figure out what's wrong with the car.


Our responses were to "White 84 SE" who just posted that he also has problems. (ok...my response, anyway, maybe not Tony's )

[This message has been edited by Neils88 (edited 08-27-2014).]

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White 84 SE
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Report this Post08-28-2014 11:00 AM Click Here to See the Profile for White 84 SEClick Here to Email White 84 SESend a Private Message to White 84 SEEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey thanks Neil, I will do that real quick to see. In my case I hogged out the valve throats (might have gone too far) and the tops of the cylinders got rusty being exposed for a few years (might need to go to larger piston).
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