Re: Exhaust coming out of breather at idle?!?
[Re: ademon]
#972023
04/12/11 03:30 PM
04/12/11 03:30 PM
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Joined: Jan 2003
Posts: 75,071 U.S.S.A.
JohnRR
I Win
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Quote:
my worn 383 does that, ring seal
Yep , it's blowby , do a leakdown test .
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Re: Exhaust coming out of breather at idle?!?
[Re: JohnRR]
#972024
04/12/11 03:48 PM
04/12/11 03:48 PM
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Joined: Mar 2003
Posts: 3,358 Berwyn, IL
challenger70
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Quote:
Quote:
my worn 383 does that, ring seal
Yep , it's blowby , do a leakdown test .
Thanks for the replies, how do I do a leakdown test?
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Re: Exhaust coming out of breather at idle?!?
[Re: 340SHORTY]
#972027
04/12/11 04:01 PM
04/12/11 04:01 PM
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Joined: Jan 2003
Posts: 25,200 Upper Midwest
MoparforLife
Too Many Posts
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Quote:
do all the tests you want,,, bottom line is your engine needs to be rebuilt...
I fully agree. If you have a large amount of fumes coming out of the breather and the PCV isn't handling it there is only one cure. Ring job time. It could also be a hole in a piston piston or scored cylinder wall so there is no longer a ring seal. There is no short cut cure. Tear down time.
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Re: Exhaust coming out of breather at idle?!?
[Re: MoparforLife]
#972028
04/12/11 04:35 PM
04/12/11 04:35 PM
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Joined: Apr 2007
Posts: 2,327 Glendale, AZ
69L78Nova
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Glendale, AZ
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Could be a head gasket too. Had the same problem on my Fury after I did the magnum head swap. I got a bad MP gasket....so bad it would blow the dipstick out of the tube at anything over 1,500rpm. Switched to Fel-pro and it runs like a top
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)
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Re: Exhaust coming out of breather at idle?!?
[Re: SomeCarGuy]
#972031
04/12/11 05:12 PM
04/12/11 05:12 PM
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Joined: Feb 2003
Posts: 10,220 Someplace you aren't
SomeCarGuy
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Oh and I've put about a zillion miles on 440's that had all kinds of blow by coming out of the breather. Oil turned black after 500 miles. Big deal. Unless you are planning a long trip I wouldn't be overly concerned about it. Some guys want stuff to be perfect, but I have learned over the years that as little as some of these cars get used, it just doesn't make sense to spend a bunch of money sometimes.
I want my fair share
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Re: Exhaust coming out of breather at idle?!?
[Re: SomeCarGuy]
#972033
04/12/11 05:34 PM
04/12/11 05:34 PM
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Joined: Mar 2003
Posts: 3,358 Berwyn, IL
challenger70
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Quote:
Oh and I've put about a zillion miles on 440's that had all kinds of blow by coming out of the breather. Oil turned black after 500 miles. Big deal. Unless you are planning a long trip I wouldn't be overly concerned about it. Some guys want stuff to be perfect, but I have learned over the years that as little as some of these cars get used, it just doesn't make sense to spend a bunch of money sometimes.
I agree but I would at least like to confirm the problem, problem is I don't know what I am doing, lol. Pretty much everything I do other than basic maintenance is the first time for me, so this forum is a huge help. Oh and it doesn't smoke out the exhaust.
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Re: Exhaust coming out of breather at idle?!?
[Re: 69L78Nova]
#972034
04/12/11 05:46 PM
04/12/11 05:46 PM
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Joined: Mar 2003
Posts: 3,358 Berwyn, IL
challenger70
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Quote:
Could be a head gasket too. Had the same problem on my Fury after I did the magnum head swap. I got a bad MP gasket....so bad it would blow the dipstick out of the tube at anything over 1,500rpm. Switched to Fel-pro and it runs like a top
I did have a loose headbolt (copletely loose)when I checked while replacing valve cover gasket, wonder if that caused a head gasket problem
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Re: Exhaust coming out of breather at idle?!?
[Re: challenger70]
#972035
04/12/11 05:59 PM
04/12/11 05:59 PM
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Joined: Apr 2010
Posts: 4,154 bethlehem pa
mikemee1331
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Quote:
Quote:
Could be a head gasket too. Had the same problem on my Fury after I did the magnum head swap. I got a bad MP gasket....so bad it would blow the dipstick out of the tube at anything over 1,500rpm. Switched to Fel-pro and it runs like a top
I did have a loose headbolt (copletely loose)when I checked while replacing valve cover gasket, wonder if that caused a head gasket problem
ummm, that would be a problem! when you discovered that did you check the torque on the others? you really should buy or rent the tester and check out your motor. i'm not real big on over-thinking or over spending this stuff but a loose cyl. head bolt could give you real problems.
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Re: Exhaust coming out of breather at idle?!?
[Re: mikemee1331]
#972036
04/12/11 06:44 PM
04/12/11 06:44 PM
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Joined: Mar 2003
Posts: 3,358 Berwyn, IL
challenger70
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Quote:
Quote:
Quote:
Could be a head gasket too. Had the same problem on my Fury after I did the magnum head swap. I got a bad MP gasket....so bad it would blow the dipstick out of the tube at anything over 1,500rpm. Switched to Fel-pro and it runs like a top
I did have a loose headbolt (copletely loose)when I checked while replacing valve cover gasket, wonder if that caused a head gasket problem
ummm, that would be a problem! when you discovered that did you check the torque on the others? you really should buy or rent the tester and check out your motor. i'm not real big on over-thinking or over spending this stuff but a loose cyl. head bolt could give you real problems.
I retorqued all the bolts when I found the loose 1, it was the only loose one on both sides.
I think I will get a compression tester and leakdown tester, unless a leakdown tester can test compression also? What are good brands, I don't need pro-grade, but don't want to buy junk, seems I can get Matco leakdown for about $130, and a sun compression tester for about $30??
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