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Holley carb disintegrating...ever seen this?
#2381658
10/04/17 10:56 AM
10/04/17 10:56 AM
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Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
an8sec70cuda
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
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My dad's '69 road runner, 440 w/ a 6 pack setup on it. Complete six pack setup bought brand new as a kit through Mopar back in 2006 or 2007 I think. Came w/ the air cleaner, 3 carbs, Edelbrock manifold, etc. This is a street car, 440 w/ 509 cam, worked over 906s, hemi 4 speed, 3.54 dana, etc. Even has air conditioning.
Ran great for a while, then started having a minor (we thought) issue after a few years. After the car sat for a day or two, it would run VERY rough and ragged the next time you drove it like it had 4 fouled plugs. After mile or two down the road, it would clear right up and run great.
Finally got tired of it when it started getting worse. The center carb was draining all its fuel out when it sat. I tore into it the other day and found the outboard carbs are fine, but the center carb's metering block is disintegrating. Looks like the dern thing is made of clay that got wet, then dried and cracked.
I can't believe it didn't turn into a water sprinkler and set the car on fire. You can see where the metering block is swollen, cracked, and was actually leaking a little through the casting itself.
Called Holley and they want the carb back. Said they'll either send it back w/ a new block on it or send me a whole new carb.
I've had a bunch of Holleys and rebuilt a lot of old ones...never seen anything like this before.
 
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381660
10/04/17 10:57 AM
10/04/17 10:57 AM
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Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
an8sec70cuda
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
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CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381661
10/04/17 10:57 AM
10/04/17 10:57 AM
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Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
an8sec70cuda
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
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CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381675
10/04/17 11:24 AM
10/04/17 11:24 AM
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Joined: Feb 2005
Posts: 20,204
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,204
PA.
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Wholly crap. Never in my life did I see one that bad, or even close. I would be careful what you post especially if they are going to work with you. Some companies like to do damage control, some don't.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381679
10/04/17 11:33 AM
10/04/17 11:33 AM
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Joined: Jan 2003
Posts: 1,255
Columbus, GA
Michael Ecks
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,255
Columbus, GA
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Restored hundreds of carbs. Never seen that kind of deterioration even on carbs much much older.
"The happiness of your life depends upon the quality of
your thoughts" ~ Roman Emperor Marcus Aurelius
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381685
10/04/17 11:42 AM
10/04/17 11:42 AM
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Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
an8sec70cuda
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
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Didn't mean to sound like I was bad mouthing Holley, not what I intended at all. The guy I talked to was great to deal with and I'm not mad at all about it. We've had the thing for 10+ years anyway. Just curious if anyone else has seen this.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Holley carb disintegrating...ever seen this?
[Re: Roughbird72]
#2381704
10/04/17 12:12 PM
10/04/17 12:12 PM
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Joined: Feb 2005
Posts: 20,204
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,204
PA.
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Probably not the case with that one BUT years from now I see big issues coming because of alcohol content. I know from running alcohol extra maintenance is needed and luckily I can do it. My Sons fuel regulator needs the top taken off of it every time the car sits for over 3 weeks. I got caught with bad floats on my 3 year old carb early this year and from now on will be changed out every other year. 10% alcohol in pump gas and some places have 10% and on up to 85% so extra care will be needed by all.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381717
10/04/17 12:32 PM
10/04/17 12:32 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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Was it only one of the carbs, or all 3 that showed this sort of decay? I sure hope Holley steps up and takes care of you. Looks like they had some bad RM's go through their foundry.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381722
10/04/17 12:36 PM
10/04/17 12:36 PM
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Joined: Jul 2004
Posts: 19,318
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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My dad's '69 road runner, 440 w/ a 6 pack setup on it. Complete six pack setup bought brand new as a kit through Mopar back in 2006 or 2007 I think. Came w/ the air cleaner, 3 carbs, Edelbrock manifold, etc. This is a street car, 440 w/ 509 cam, worked over 906s, hemi 4 speed, 3.54 dana, etc. Even has air conditioning.
Ran great for a while, then started having a minor (we thought) issue after a few years. After the car sat for a day or two, it would run VERY rough and ragged the next time you drove it like it had 4 fouled plugs. After mile or two down the road, it would clear right up and run great.
Finally got tired of it when it started getting worse. The center carb was draining all its fuel out when it sat. I tore into it the other day and found the outboard carbs are fine, but the center carb's metering block is disintegrating. Looks like the dern thing is made of clay that got wet, then dried and cracked.
I can't believe it didn't turn into a water sprinkler and set the car on fire. You can see where the metering block is swollen, cracked, and was actually leaking a little through the casting itself.
Called Holley and they want the carb back. Said they'll either send it back w/ a new block on it or send me a whole new carb.
I've had a bunch of Holleys and rebuilt a lot of old ones...never seen anything like this before. Have seen that just a couple times lately and the plating is separating/flaking off of the carb parts and why I steer away from the old junk and only build alum/billet when possible.........  And these were gasoline not alcohol..........
Last edited by Thumperdart; 10/04/17 12:38 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381726
10/04/17 12:40 PM
10/04/17 12:40 PM
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Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
an8sec70cuda
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 13,417
Marion, South Carolina [><]
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The other carbs both look fine, but the outboards don't have metering blocks. The main body and bowls on all 3 look fine. It's just the metering block. Has to be a metallurgy issue.
It's not just the coating, the entire block is coming apart.
The dominator on my hemi is just as old and has also had pump gas run through it. No issues w/ that one.
This car does a good bit of sitting up though...probably what did it in.
93 octane pump premium, nothing else has been in it.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381731
10/04/17 12:47 PM
10/04/17 12:47 PM
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Joined: Jan 2003
Posts: 14,515
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,515
So. Burlington, Vt.
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For a car that sits like that, I'd be looking at using something like "carb defender" in it.
Although I doubt it would have helped prevent what you have going on there..... But it might have.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381735
10/04/17 12:49 PM
10/04/17 12:49 PM
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Joined: Jul 2004
Posts: 19,318
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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The other carbs both look fine, but the outboards don't have metering blocks. The main body and bowls on all 3 look fine. It's just the metering block. Has to be a metallurgy issue.
It's not just the coating, the entire block is coming apart.
The dominator on my hemi is just as old and has also had pump gas run through it. No issues w/ that one.
This car does a good bit of sitting up though...probably what did it in.
93 octane pump premium, nothing else has been in it. I also noticed what looked like a crack by the mixture screw..........the ones I had were flaking and separating that's the best way to describe it and have pics I posted of FB............
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Holley carb disintegrating...ever seen this?
[Re: an8sec70cuda]
#2381756
10/04/17 01:17 PM
10/04/17 01:17 PM
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Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
Old School
super stock
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super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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Are you sure you didn't find that carb on the bottom of Lake Marion? 😁😁😁
68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
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it will be interesting what holley says about what may have caused this. please follow through with their response.
