The Ford Barn

MGG · 06-02-2015, 01:15 PM

I have a 1934 V-8 which I got running about a year ago after it was parked in a garage for about 20 years. I now run it an average of about once or twice a month. At first there was quite a bit of blowby exiting through the oil filler tube at the rear of the engine when I shut it off. I did not worry about it because I thought some blowby was normal for these old V-8s. The last half dozen times I ran it I have not seen any blowby. The only thing I can think of is that I changed motor oil brands about the time of its disappearance.

What happened to my blowby? Did the rings re-marry themselves up to the cylinder walls or some such thing? Do I have a problem?

Thanks - MGG

J Franklin · 06-02-2015, 01:25 PM

stuck rings can free up.

Mart · 06-02-2015, 01:50 PM

Not sure exactly why, and yes, it probably is ring related, but I had the same thing with an old Morris Minor I resurrected a few years ago. The more I drove it, the better it got.

Mart.

Mike51Merc · 06-02-2015, 02:02 PM

Absence of blow-by is not an indicator of a problem.

MGG · 06-02-2015, 02:10 PM

I meant that to be kinda tongue-in-cheek. It seems like a good "problem" to have.

wbedwards · 06-02-2015, 02:10 PM

Sponsored Links (Register now to hide all advertisements)

Mine sat for years before I bought it. It smoked and stank when I ran it the first few times. (Exhaust and blowby) Now that I have about 6-700 miles on it, its cleared up a good bit also.

51 MERC-CT · 06-02-2015, 03:34 PM

Up until 1953 or 1954, dealers used to carry blow-by odor for those who missed it.

Brendan · 06-02-2015, 07:47 PM

Quote:

Originally Posted by 51 MERC-CT

Up until 1953 or 1954, dealers used to carry blow-by odor for those who missed it.

that's funny!

Ken/Alabama · 06-02-2015, 07:59 PM

Drive it!

Fordestes · 06-02-2015, 08:20 PM

check and see if a mouse made a nest at sometime or for some reason the ventilation tube became blocked, might save a big oily mess on the driveway!!

1938 Coupe · 06-03-2015, 01:07 AM

Quote:

Originally Posted by Mart

Not sure exactly why, and yes, it probably is ring related, but I had the same thing with an old Morris Minor I resurrected a few years ago. The more I drove it, the better it got.

Mart.

Ditto Here!....mine also had blow by after first starting in the beginning but now the more it is run the less I see. I think it was ring related after sitting all those years.

Walt Dupont--Me. · 06-03-2015, 06:51 AM

Hi detergent oil and marvel mystery will free up stuck rings. Make the engine like new. Walt

wbedwards · 06-03-2015, 09:04 AM

I did my first oil change last month. Car had set for years before I bought it. I cut open the filter just for grins. There was no metal in it but scary amount of sludge in the bottom. I fugure the HD oil is cleaning the sludge out and leaving it in the filter.

06-02-2015, 01:15 PM	#1
MGG Senior Member Join Date: Apr 2015 Location: Oregon City, OR Posts: 285	What Happened to my Blowby? I have a 1934 V-8 which I got running about a year ago after it was parked in a garage for about 20 years. I now run it an average of about once or twice a month. At first there was quite a bit of blowby exiting through the oil filler tube at the rear of the engine when I shut it off. I did not worry about it because I thought some blowby was normal for these old V-8s. The last half dozen times I ran it I have not seen any blowby. The only thing I can think of is that I changed motor oil brands about the time of its disappearance. What happened to my blowby? Did the rings re-marry themselves up to the cylinder walls or some such thing? Do I have a problem? Thanks - MGG

06-02-2015, 01:25 PM	#2
J Franklin Senior Member Join Date: May 2010 Location: Oregon Posts: 5,959	Re: What Happened to my Blowby? stuck rings can free up.

06-02-2015, 01:50 PM	#3
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,745	Re: What Happened to my Blowby? Not sure exactly why, and yes, it probably is ring related, but I had the same thing with an old Morris Minor I resurrected a few years ago. The more I drove it, the better it got. Mart.

06-02-2015, 02:02 PM	#4
Mike51Merc Senior Member Join Date: May 2010 Location: Northeast Pennsylvania Posts: 1,582	Re: What Happened to my Blowby? Absence of blow-by is not an indicator of a problem.

06-02-2015, 02:10 PM	#5
MGG Senior Member Join Date: Apr 2015 Location: Oregon City, OR Posts: 285	Re: What Happened to my Blowby? I meant that to be kinda tongue-in-cheek. It seems like a good "problem" to have.

06-02-2015, 02:10 PM	#6
wbedwards Senior Member Join Date: Jan 2015 Location: Birmingham, Al. Posts: 339	Re: What Happened to my Blowby? Sponsored Links (Register now to hide all advertisements) Mine sat for years before I bought it. It smoked and stank when I ran it the first few times. (Exhaust and blowby) Now that I have about 6-700 miles on it, its cleared up a good bit also.

06-02-2015, 07:59 PM	#9
Ken/Alabama Senior Member Join Date: May 2010 Location: Alabama Posts: 3,257	Re: What Happened to my Blowby? Drive it!

06-02-2015, 08:20 PM	#10
Fordestes Senior Member Join Date: May 2010 Posts: 886	Re: What Happened to my Blowby? check and see if a mouse made a nest at sometime or for some reason the ventilation tube became blocked, might save a big oily mess on the driveway!!

06-03-2015, 06:51 AM	#12
Walt Dupont--Me. Senior Member Join Date: May 2010 Location: Gardiner Me. Posts: 4,200	Re: What Happened to my Blowby? Hi detergent oil and marvel mystery will free up stuck rings. Make the engine like new. Walt

06-03-2015, 09:04 AM	#13
wbedwards Senior Member Join Date: Jan 2015 Location: Birmingham, Al. Posts: 339	Re: What Happened to my Blowby? I did my first oil change last month. Car had set for years before I bought it. I cut open the filter just for grins. There was no metal in it but scary amount of sludge in the bottom. I fugure the HD oil is cleaning the sludge out and leaving it in the filter.