Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 02-27-2021, 02:39 PM   #21
Mart
Senior Member
 
Mart's Avatar
 
Join Date: May 2010
Location: Solihull, England.
Posts: 8,732
Default Re: New misfire - sticky valves?

Would have to go with Kiwi. The guide appears to be moving.

Pull the intake manifold. Should be an easy fix.

Could be collets out of place or valve broken near the collet end.

Intake off inspection required.

Good use of the video capture.

Mart.
Mart is offline   Reply With Quote
Old 02-27-2021, 03:31 PM   #22
51 MERC-CT
Senior Member
 
51 MERC-CT's Avatar
 
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
Default Re: New misfire - sticky valves?

Definitely something broken or out or place. Time to dismantle.
__________________
DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES
51 MERC-CT is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 02-28-2021, 11:24 AM   #23
JMFL36
Senior Member
 
JMFL36's Avatar
 
Join Date: Oct 2017
Location: Venice, FL
Posts: 226
Default Re: New misfire - sticky valves?

Just took off the intake and here's what I found. Guess I was lucky that it landed and stayed where I found it. The rest of the valve assembly looks good. Anyone know where to get a new C-clip?
Attached Images
File Type: jpg valve1.jpg (68.1 KB, 101 views)
File Type: jpg valve2.jpg (68.6 KB, 96 views)
__________________
Document your car with CollectorCarCompanion
JMFL36 is offline   Reply With Quote
Old 02-28-2021, 11:44 AM   #24
51 MERC-CT
Senior Member
 
51 MERC-CT's Avatar
 
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
Default Re: New misfire - sticky valves?

Quote:
Originally Posted by JMFL36 View Post
Just took off the intake and here's what I found. Guess I was lucky that it landed and stayed where I found it. The rest of the valve assembly looks good. Anyone know where to get a new C-clip?
Vanpelt---


http://www.vanpeltsales.com/FH_web/e...prices-pg3.htm
__________________
DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES
51 MERC-CT is offline   Reply With Quote
Old 02-28-2021, 05:02 PM   #25
JSeery
Member Emeritus
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 16,132
Default Re: New misfire - sticky valves?

Or about anyone who sells flathead engines parts.
JSeery is offline   Reply With Quote
Old 02-28-2021, 07:43 PM   #26
Ggmac
Senior Member
 
Join Date: Jul 2016
Location: Lake worth Florida
Posts: 1,073
Default Re: New misfire - sticky valves?

Sponsored Links (Register now to hide all advertisements)
Quote:
Originally Posted by JMFL36 View Post
Just took off the intake and here's what I found. Guess I was lucky that it landed and stayed where I found it. The rest of the valve assembly looks good. Anyone know where to get a new C-clip?
Let me check tomorrow. If ive got part of a set ill send you some .
Ggmac is offline   Reply With Quote
Old 02-28-2021, 11:51 PM   #27
Tinker
Senior Member
 
Tinker's Avatar
 
Join Date: May 2010
Location: MN
Posts: 7,053
Default Re: New misfire - sticky valves?

It's nice to see a conclusion to a problem. Thanks for following through the whole project! Nice work!


You might take up any offers on a used/good clip. At least you'll know what the steel is made from.


I'd probably wonder why the clip failed. They are hard to get out on most engines in normal settings. Guides are stationary. Repeated valve sticking putting force on guide movement (there is only force from the spring, nothing from a sticky valve would force a 40/60lbs spring down to release the clip to let a 1/8" gap horseshoe to pop out), spring pressure? not installed correct previously, or a bent valve. Maybe look at how it happened also in conjugation to replacing the culprit.


.

Last edited by Tinker; 03-01-2021 at 12:22 AM.
Tinker is offline   Reply With Quote
Old 03-01-2021, 06:58 AM   #28
Mac VP
Senior Member
 
Mac VP's Avatar
 
Join Date: May 2010
Location: Cincinnati, OH
Posts: 1,356
Default Re: New misfire - sticky valves?

It appears that the spring retainer has also come loose. Under the circumstances, the entire valve assembly is suspect. You could try to reassemble the this particular valve assembly, checking each of the various components for flaws, but if it was mine, I’d simply replace that assembly so I didn’t have to worry if some other piece of it would continue to act up. Further replacing of manifold and head gaskets plus all the retorquing would be a real drag to have to go through.
__________________
VANPELT SALES LLC
Cincinnati, Ohio
Office: 513-724-9486
www.vanpeltsales.com
www.classictransmission.com
Mac VP is offline   Reply With Quote
Old 03-01-2021, 08:37 AM   #29
Frank Miller
Senior Member
 
Frank Miller's Avatar
 
Join Date: May 2010
Location: Auburn, MA
Posts: 2,106
Default Re: New misfire - sticky valves?

Quote:
Originally Posted by Mac VP View Post
It appears that the spring retainer has also come loose. Under the circumstances, the entire valve assembly is suspect. You could try to reassemble the this particular valve assembly, checking each of the various components for flaws, but if it was mine, I’d simply replace that assembly so I didn’t have to worry if some other piece of it would continue to act up. Further replacing of manifold and head gaskets plus all the retorquing would be a real drag to have to go through.

I agree. The guide may have a defect that let the retainer come loose. At first I thought it just did not get fully installed but then I wondered if part of the guide did not break.
__________________
“The technique of infamy is to start two lies at once and get people arguing heatedly over which is true.” ~ Ezra Pound
Frank Miller is offline   Reply With Quote
Old 03-01-2021, 09:05 AM   #30
JMFL36
Senior Member
 
JMFL36's Avatar
 
Join Date: Oct 2017
Location: Venice, FL
Posts: 226
Default Re: New misfire - sticky valves?

Mac VP, the bottom spring retainer is still in place and looks good.

Frank Miller, I was able to inspect the full guide circumference by turning the guide with a needle nose pliers. The retainer groove in the guide looks good with no damage all the way around.

I suspect (hope) that the retainer clip was not completely seated when installed, and worked its way out over time. The motor was rebuilt by a previous owner and has seen little mileage since the rebuild, under 1000 miles.

So my plan is to just replace the clip and not pop the heads. After a couple hundred miles I'll pull the intake again and do another close inspection of that valve assembly.

Ggmac, it would be great if you have a couple spare clips you could send me. Much appreciated.
__________________
Document your car with CollectorCarCompanion
JMFL36 is offline   Reply With Quote
Old 03-01-2021, 02:34 PM   #31
Terry,OH
Senior Member
 
Terry,OH's Avatar
 
Join Date: May 2010
Posts: 4,725
Default Re: New misfire - sticky valves?

Make sure the recess in the block, the retainer clip fits into, is clean and clear of obstruction so the retainer fits inside the recess.
Terry,OH is offline   Reply With Quote
Old 03-01-2021, 05:46 PM   #32
Ggmac
Senior Member
 
Join Date: Jul 2016
Location: Lake worth Florida
Posts: 1,073
Default Re: New misfire - sticky valves?

Quote:
Originally Posted by JMFL36 View Post
Mac VP, the bottom spring retainer is still in place and looks good.

Frank Miller, I was able to inspect the full guide circumference by turning the guide with a needle nose pliers. The retainer groove in the guide looks good with no damage all the way around.

I suspect (hope) that the retainer clip was not completely seated when installed, and worked its way out over time. The motor was rebuilt by a previous owner and has seen little mileage since the rebuild, under 1000 miles.

So my plan is to just replace the clip and not pop the heads. After a couple hundred miles I'll pull the intake again and do another close inspection of that valve assembly.

Ggmac, it would be great if you have a couple spare clips you could send me. Much appreciated.
Ive found 5 that are homeless . Pm your address and ill get them to you . Itll be a couple of days till i get to the post office .
Gary
Ggmac is offline   Reply With Quote
Old 03-03-2021, 06:23 AM   #33
Ggmac
Senior Member
 
Join Date: Jul 2016
Location: Lake worth Florida
Posts: 1,073
Default Re: New misfire - sticky valves?

Quote:
Originally Posted by JMFL36 View Post
Mac VP, the bottom spring retainer is still in place and looks good.

Frank Miller, I was able to inspect the full guide circumference by turning the guide with a needle nose pliers. The retainer groove in the guide looks good with no damage all the way around.

I suspect (hope) that the retainer clip was not completely seated when installed, and worked its way out over time. The motor was rebuilt by a previous owner and has seen little mileage since the rebuild, under 1000 miles.

So my plan is to just replace the clip and not pop the heads. After a couple hundred miles I'll pull the intake again and do another close inspection of that valve assembly.



Ggmac, it would be great if you have a couple spare clips you could send me. Much appreciated.
Parts sent . Pm with details . Good luck
Ggmac is offline   Reply With Quote
Old 03-09-2021, 07:42 PM   #34
JMFL36
Senior Member
 
JMFL36's Avatar
 
Join Date: Oct 2017
Location: Venice, FL
Posts: 226
Default Re: New misfire - sticky valves?

Update. Thanks to Ggmac, got a few horseshoe clips in the mail yesterday. Borrowed a pickle fork (valve spring depressor) from a friend. Today I put the clip in. It was a snap (pun intended). Got everything back together and she fired up on first crank. Runs quieter than before the clip came out, so it must have been misaligned for awhile before popping out. Problem solved (fingers crossed). Thanks to everyone for all the tips and advice, and a special thanks to Ggmac for the spare clips!
__________________
Document your car with CollectorCarCompanion
JMFL36 is offline   Reply With Quote
Old 03-09-2021, 10:21 PM   #35
Tinker
Senior Member
 
Tinker's Avatar
 
Join Date: May 2010
Location: MN
Posts: 7,053
Default Re: New misfire - sticky valves?

Quote:
Originally Posted by Mac VP View Post
Further replacing of manifold and head gaskets plus all the re-torquing would be a real drag to have to go through.

Every once in a while you could pull both. Gaskets are a good thing to have. I agree with you to not figure out an issue because you don't want to buy gaskets, seems weird.
Tinker is offline   Reply With Quote
Old 03-10-2021, 05:33 AM   #36
Ggmac
Senior Member
 
Join Date: Jul 2016
Location: Lake worth Florida
Posts: 1,073
Default Re: New misfire - sticky valves?

I glad it all worked out . Getting back on the road with a simple fix is always a good feeling .
Ggmac is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 02:43 PM.