The Ford Barn

Fatboy Tim · 06-19-2015, 07:06 AM

Wee question from Scotland.

I have rebuilt the flathead in my 32 coupe, now 284 inch, compression is 135 each cylinder so not bad. PCV valve fitted and getting a bit smoke out the exhaust under hard accelaration / 5000rpm. I think this means the PCV valve is working with a dump out the inlet manifold. No smoking at idle so new valve seals seem ok.

Any advice welcome.

Thanks for looking.

Dave

40cpe · 06-19-2015, 09:10 AM

I don't see how the PVC valve could cause the high RPM smoking. It is more likely your rings haven't seated yet.

Fatboy Tim · 06-19-2015, 09:24 AM

Thanks, good point.

Dennis Jarrell · 06-19-2015, 02:15 PM

how did you get a pvc to work at all?

Ross F-1 · 06-19-2015, 02:27 PM

How often do you spin it up to 5,000??

scooder · 06-19-2015, 03:24 PM

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Quote:

Originally Posted by Ross F-1

How often do you spin it up to 5,000??

He lives in the British isles, with a built flathead, so I'd say a lot.
Tis how most of us drive them, like we stole it.
If I put a bunch of work building a "hot" flathead, id spend a good portion of my time trying to break it, after all that's what I built it for.
Martin.

scooder · 06-19-2015, 03:28 PM

Forgot to add,
Tim, how many miles on this engine?
Martin.

B-O-B · 06-19-2015, 05:07 PM

Curious as to what color of smoke? White blue or black.?

Brendan · 06-19-2015, 05:32 PM

i bet that coupe runs like a raped Ape!...LOL

Fatboy Tim · 06-20-2015, 02:41 AM

Smoke is grey, engine is a French block so not a lot of miles on it. PCV valve is connected direct to the underside of the inlet manifold.

Thanks for the advice.

scooder · 06-20-2015, 04:09 AM

Grey? Oil is Blue mate.
Keep an eye on it.
Martin.

Bluebell · 06-20-2015, 06:14 AM

And too much petrol is black.
Gray smoke? Is it using water?

Fatboy Tim · 06-20-2015, 07:55 AM

Will give it a wee blast tomorrow and check, thanks for the advice.

Fatboy Tim · 06-20-2015, 08:30 PM

Found the answer, drive the t#ts of it , if / when engine grenades stick in a 327.

I think that's what happened in1955 too.

40cpe · 06-20-2015, 09:07 PM

No 327s in 1955, not chevy anyway.

scooder · 06-21-2015, 05:50 AM

Quote:

Originally Posted by 40cpe

No 327s in 1955, not chevy anyway.

And bloody definitely shouldn't be in a Ford!
Martin.

35cab · 06-21-2015, 03:26 PM

Living next door to this man, I can vouch for the fact he does drive it hard and he likes using all the numbers on the tach! It was me that noticed the odd puff of smoke as I struggled to keep up with him on our drive back from the Lake District.
It is a great driving car and don't worry Martin, he will not be allowed to put in a ch*vy, or any of these new fangled ohv engines in it, I will weld his toolbox shut.
The smoke is a bit of a mystery, perfect compression on all cylinders, no oil water contamination, no odd noises, to be continued. . . .

Fatboy Tim · 06-22-2015, 07:00 AM

Thanks Gordon, don't ask me to weld up my toolbox as the welds will break...........cant get the penetration these days.

06-19-2015, 07:06 AM	#1
Fatboy Tim Member Join Date: May 2010 Posts: 57	PCV valve smokey? Wee question from Scotland. I have rebuilt the flathead in my 32 coupe, now 284 inch, compression is 135 each cylinder so not bad. PCV valve fitted and getting a bit smoke out the exhaust under hard accelaration / 5000rpm. I think this means the PCV valve is working with a dump out the inlet manifold. No smoking at idle so new valve seals seem ok. Any advice welcome. Thanks for looking. Dave

06-19-2015, 09:10 AM	#2
40cpe Senior Member Join Date: May 2010 Location: Star, MS Posts: 4,120	Re: PCV valve smokey? I don't see how the PVC valve could cause the high RPM smoking. It is more likely your rings haven't seated yet.

06-19-2015, 09:24 AM	#3
Fatboy Tim Member Join Date: May 2010 Posts: 57	Re: PCV valve smokey? Thanks, good point.

06-19-2015, 02:15 PM	#4
Dennis Jarrell Senior Member Join Date: Jul 2010 Location: Jackson, MI Posts: 101	Re: PCV valve smokey? how did you get a pvc to work at all?

06-19-2015, 02:27 PM	#5
Ross F-1 Senior Member Join Date: Nov 2010 Location: NM Posts: 2,443	Re: PCV valve smokey? How often do you spin it up to 5,000?? __________________ '52 F-1, EAB flathead

06-19-2015, 03:28 PM	#7
scooder Senior Member Join Date: Jul 2010 Posts: 2,595	Re: PCV valve smokey? Forgot to add, Tim, how many miles on this engine? Martin.

06-19-2015, 05:07 PM	#8
B-O-B Senior Member Join Date: May 2010 Location: Ft Mohave,Az Posts: 2,013	Re: PCV valve smokey? Curious as to what color of smoke? White blue or black.?

06-19-2015, 05:32 PM	#9
Brendan Senior Member Join Date: May 2010 Location: At my kitchen table in Santa Rosa, Ca Posts: 2,976	Re: PCV valve smokey? i bet that coupe runs like a raped Ape!...LOL __________________ If it would have been a snake it would have bit ya! i can't spell my way out of a paper bag!

06-20-2015, 02:41 AM	#10
Fatboy Tim Member Join Date: May 2010 Posts: 57	Re: PCV valve smokey? Smoke is grey, engine is a French block so not a lot of miles on it. PCV valve is connected direct to the underside of the inlet manifold. Thanks for the advice.

06-20-2015, 04:09 AM	#11
scooder Senior Member Join Date: Jul 2010 Posts: 2,595	Re: PCV valve smokey? Grey? Oil is Blue mate. Keep an eye on it. Martin.

06-20-2015, 06:14 AM	#12
Bluebell Senior Member Join Date: Nov 2012 Location: Tauranga, New Zealand Posts: 726	Re: PCV valve smokey? And too much petrol is black. Gray smoke? Is it using water?

06-20-2015, 07:55 AM	#13
Fatboy Tim Member Join Date: May 2010 Posts: 57	Re: PCV valve smokey? Will give it a wee blast tomorrow and check, thanks for the advice.

06-20-2015, 08:30 PM	#14
Fatboy Tim Member Join Date: May 2010 Posts: 57	Re: PCV valve smokey? Found the answer, drive the t#ts of it , if / when engine grenades stick in a 327. I think that's what happened in1955 too.

06-20-2015, 09:07 PM	#15
40cpe Senior Member Join Date: May 2010 Location: Star, MS Posts: 4,120	Re: PCV valve smokey? No 327s in 1955, not chevy anyway.

06-21-2015, 03:26 PM	#17
35cab Senior Member Join Date: May 2010 Location: Edinburgh, Scotland Posts: 125	Re: PCV valve smokey? Living next door to this man, I can vouch for the fact he does drive it hard and he likes using all the numbers on the tach! It was me that noticed the odd puff of smoke as I struggled to keep up with him on our drive back from the Lake District. It is a great driving car and don't worry Martin, he will not be allowed to put in a ch*vy, or any of these new fangled ohv engines in it, I will weld his toolbox shut. The smoke is a bit of a mystery, perfect compression on all cylinders, no oil water contamination, no odd noises, to be continued. . . .

06-22-2015, 07:00 AM	#18
Fatboy Tim Member Join Date: May 2010 Posts: 57	Re: PCV valve smokey? Thanks Gordon, don't ask me to weld up my toolbox as the welds will break...........cant get the penetration these days.