AFR Heads being sent back Stay tuned !

huffentuff95 · 11-13-2006, 01:10 PM

I am really bummed out now.. I was all set to head down to the Mine Shaft {CECIL MD} and rip off a killer pass on the NEW SSTOCK tune but now that's not happening. Well after blowing my cheap graphite gaskets, I took the heads to my machinist to check them for straightness. He stuck the head in a automotive dishwasher and planed on milling the head to make it true and take off as least as possible. I get a call today telling me that the Valve guide clearance is like real excessive. He said it is like they reamed out the guide for another valve stem. AFR says it should read .3435 - .3438 ID He is coming up with .370

They are so sloppy that you could put the valve in and wiggle the face on the seat alot. He can't believe my truck ran this good. A leak down test would show this condition!! The stock AFR valve stem is .342. I called AFR and JASON gave me a RMA #. At first they said that it could be wear due to valve train geometry. I said that I have less than 1500 miles on these heads and run Mobil 1 oil. I told him what cam I have and the Steeda RR . I explained that I didn't hear any noises. It might be a material issue or assembly problem. Either way they want the heads to inspect and come up with a conclusion. If it is their problem the cost of repair and shipping is on them!!! I will keep you guys posted... PS: who wants a Cecil ticket for $40.00

maverick · 11-13-2006, 01:37 PM

Quote:

Originally Posted by huffentuff95

If it is their problem the cost of repair and shipping is on them!!!

good luck with that...

O'doyle · 11-13-2006, 01:40 PM

wow, sorry to hear about that man....

QuarterHorse · 11-13-2006, 02:23 PM

If your running 1.7 rockers manufacturers frown on it, due to the geometry is set using 1.6's. Weird I know, just what I've been told.

lightningDan · 11-13-2006, 04:18 PM

Dennis, Ed curtis has some bullet proof, valve upgrades...see what AFR is doing to do, if your not happy contact Ed

www.flowtechinductions.com

he built my heads to handle 32PSI

Danny

Flatmotor · 11-13-2006, 05:19 PM

Dennis, is it just one guide or all of the guides? Bill

Super Glide · 11-13-2006, 06:29 PM

Well that sucks Dennis, sorry to hear.
How many valves were of issue?
Keep us posted.

madramper · 11-13-2006, 06:46 PM

Watch, Dennis is probably going to pick up 2 tenths by having valve guides that actually fit now!!!!

huffentuff95 · 11-13-2006, 09:13 PM

It seems every valve guide is BAD. I went there today to the machine shop to see it for my self. Even a 10 year old could see something was wrong, He had all the INTAKE valves out all were super SLOPPY and about 4 were REAL bad , I mean I can't believe the valve even seated properly. 3 valve guide seals were off the guide and were just going up and down with the valve. We pulled a couple Exhaust and they were loose too. Try to imagine .028 clearance, that's a spark plug gap. I was told that I was lucky I didn't drop a head from a valve. I thought the plugs looked a bit funny, I stated Tan center electrode with a dark brown casing.. I thought it was rich but that was oil burning. I had added some oil but with the valve cover leak it was hard to tell where I was loosing it. AFR told me then needed the head to determine if the supplier of the Guides screwed up. They are not OBLONG which would relate to improper valve train geomertry. did the steeda's 1.72RR
do this, I think not. I just wish someone could have seen these, it was unbelievable. I hope AFR does the right thing here. Thats what you get for taking heads right out of the BOX and bolting them on your motor. Carman wanted to pop some valves out and inspect or chamfer anything that need attention!! but I just couldn't wait and put them on. Who knows maybe there are more heads like mine floating around

93REDBOLT · 11-13-2006, 09:20 PM

Thatsucks Dennis, I hope they stand behind them & don't keep the to long.

Flatmotor · 11-14-2006, 05:46 AM

Dennis, If they came from the factory that way, I doubt you ever had proper valve sealing. If they used a fixed size pilot to grind the seats they should have caught it then. I'll be checking mine while they are on the bench. I hope they step up to the plate and fix or preferrably replace them for you. Bill

Black P-38 · 11-14-2006, 08:16 AM

Wow Dennis, that really sucks!!! Damn good thing you didn't drop a valve, or valves!!! I'd be SO pissed... yet another reason for caution and patience.
If there are others like yours floating around, your discovery will no doubt save someone alot of trouble and expense if they are about to bolt on a set. There will likely be others who'll be wondering if they should pull theirs and have them checked. It would suck to R&R a pair of heads for no reason, but not as much as it would to have a catastrophic failure. Good luck Dennis, I hope they stand behind their product, lots of us will be watching to see how they handle this, (Shawn, have you checked yours???). Hope you're back together soon and as a bonus get that 10 second time slip!!!

Mike

Bad as L · 11-14-2006, 01:58 PM

You were passing enough oil to lube a freight train....you had to be.

So I guess thats also what caused the detonation that took out your gasket, its a good thing you had those cork gaskets or whatever they were in there.

Sportruk · 11-14-2006, 02:33 PM

Sorry to hear they went bad. I hope yours is an isolated case. That's strange that they are round. I had an old set that wore oblong, but that was with a stock rocker. I hope mine are OK. My engine builder says he checks everything he installs. I paid for blueprinting, so I hope he checked them. He will blueprint a $3800 set of rods, as he calls them a diamond in the rough.

huffentuff95 · 11-14-2006, 06:29 PM

It just don't add up, why didn't I see smoke or something, unless the cylinder pressure help burn off the excess oil!!!. I guess blowing these gaskets are a blessing . If you saw the look on the machinest face he just couldn't believe it. And to think I had my best 1/8 mile pass right before blowing these graphite gaskets.. Oh well we will see how this pans out!!!

11-13-2006, 01:10 PM	#1 (permalink)
huffentuff95 S. STOCK Tuned by Tweecer Join Date: Dec 2000 Location: Rosenhayn N.J. Posts: 6,627 View this user's gallery iTrader: 5 / 100%	AFR Heads being sent back Stay tuned ! I am really bummed out now.. I was all set to head down to the Mine Shaft {CECIL MD} and rip off a killer pass on the NEW SSTOCK tune but now that's not happening. Well after blowing my cheap graphite gaskets, I took the heads to my machinist to check them for straightness. He stuck the head in a automotive dishwasher and planed on milling the head to make it true and take off as least as possible. I get a call today telling me that the Valve guide clearance is like real excessive. He said it is like they reamed out the guide for another valve stem. AFR says it should read .3435 - .3438 ID He is coming up with .370 They are so sloppy that you could put the valve in and wiggle the face on the seat alot. He can't believe my truck ran this good. A leak down test would show this condition!! The stock AFR valve stem is .342. I called AFR and JASON gave me a RMA #. At first they said that it could be wear due to valve train geometry. I said that I have less than 1500 miles on these heads and run Mobil 1 oil. I told him what cam I have and the Steeda RR . I explained that I didn't hear any noises. It might be a material issue or assembly problem. Either way they want the heads to inspect and come up with a conclusion. If it is their problem the cost of repair and shipping is on them!!! I will keep you guys posted... PS: who wants a Cecil ticket for $40.00

11-14-2006, 01:58 PM	#13 (permalink)
Bad as L Student of Horsepower Paid Member Join Date: Jan 2001 Location: Auburn, Wa Posts: 5,985 NLOC member #: 391 View this user's gallery iTrader: 5 / 100%	You were passing enough oil to lube a freight train....you had to be. So I guess thats also what caused the detonation that took out your gasket, its a good thing you had those cork gaskets or whatever they were in there. Last edited by Bad as L; 11-14-2006 at 02:01 PM..

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11-13-2006, 01:40 PM	#3 (permalink)
O'doyle Will it ever end? Paid Member Join Date: Mar 2006 Location: Shawnee, OK Posts: 2,471 NLOC member #: 2415 View this user's gallery iTrader: 24 / 100%	wow, sorry to hear about that man....

11-13-2006, 02:23 PM	#4 (permalink)
QuarterHorse Registered User Join Date: Sep 2005 Location: Des Moines, Iowa Posts: 1,381 View this user's gallery iTrader: 2 / 100%	If your running 1.7 rockers manufacturers frown on it, due to the geometry is set using 1.6's. Weird I know, just what I've been told.

11-13-2006, 04:18 PM	#5 (permalink)
lightningDan Namasté Paid Member Join Date: Aug 2004 Location: Fairhaven, Ma Posts: 4,300 NLOC member #: 1935 View this user's gallery iTrader: 8 / 100%	Dennis, Ed curtis has some bullet proof, valve upgrades...see what AFR is doing to do, if your not happy contact Ed www.flowtechinductions.com he built my heads to handle 32PSI Danny

11-13-2006, 05:19 PM	#6 (permalink)
Flatmotor Registered User Paid Member Join Date: Feb 2006 Location: Central, Arkansas Posts: 147 NLOC member #: 2042 View this user's gallery iTrader: 0 / 0%	Dennis, is it just one guide or all of the guides? Bill

11-13-2006, 06:29 PM	#7 (permalink)
Super Glide Registered User Paid Member Join Date: Jan 2000 Posts: 10,213 NLOC member #: 343 View this user's gallery iTrader: 14 / 100%	Well that sucks Dennis, sorry to hear. How many valves were of issue? Keep us posted.

11-13-2006, 06:46 PM	#8 (permalink)
madramper Supporting Vendor Paid Member Join Date: Jun 2002 Location: Alloway, NJ Posts: 11,414 NLOC member #: 937 View this user's gallery iTrader: 43 / 100%	Watch, Dennis is probably going to pick up 2 tenths by having valve guides that actually fit now!!!!

11-13-2006, 09:13 PM	#9 (permalink)
huffentuff95 S. STOCK Tuned by Tweecer Join Date: Dec 2000 Location: Rosenhayn N.J. Posts: 6,627 View this user's gallery iTrader: 5 / 100%	It seems every valve guide is BAD. I went there today to the machine shop to see it for my self. Even a 10 year old could see something was wrong, He had all the INTAKE valves out all were super SLOPPY and about 4 were REAL bad , I mean I can't believe the valve even seated properly. 3 valve guide seals were off the guide and were just going up and down with the valve. We pulled a couple Exhaust and they were loose too. Try to imagine .028 clearance, that's a spark plug gap. I was told that I was lucky I didn't drop a head from a valve. I thought the plugs looked a bit funny, I stated Tan center electrode with a dark brown casing.. I thought it was rich but that was oil burning. I had added some oil but with the valve cover leak it was hard to tell where I was loosing it. AFR told me then needed the head to determine if the supplier of the Guides screwed up. They are not OBLONG which would relate to improper valve train geomertry. did the steeda's 1.72RR do this, I think not. I just wish someone could have seen these, it was unbelievable. I hope AFR does the right thing here. Thats what you get for taking heads right out of the BOX and bolting them on your motor. Carman wanted to pop some valves out and inspect or chamfer anything that need attention!! but I just couldn't wait and put them on. Who knows maybe there are more heads like mine floating around

11-13-2006, 09:20 PM	#10 (permalink)
93REDBOLT Registered User Join Date: Mar 2004 Location: St. Clair MO Posts: 1,771 View this user's gallery iTrader: 7 / 100%	Thatsucks Dennis, I hope they stand behind them & don't keep the to long.

11-14-2006, 05:46 AM	#11 (permalink)
Flatmotor Registered User Paid Member Join Date: Feb 2006 Location: Central, Arkansas Posts: 147 NLOC member #: 2042 View this user's gallery iTrader: 0 / 0%	Dennis, If they came from the factory that way, I doubt you ever had proper valve sealing. If they used a fixed size pilot to grind the seats they should have caught it then. I'll be checking mine while they are on the bench. I hope they step up to the plate and fix or preferrably replace them for you. Bill

11-14-2006, 08:16 AM	#12 (permalink)
Black P-38 Guest Join Date: Sep 2004 Posts: 4,419 View this user's gallery iTrader: 22 / 100%	Wow Dennis, that really sucks!!! Damn good thing you didn't drop a valve, or valves!!! I'd be SO pissed... yet another reason for caution and patience. If there are others like yours floating around, your discovery will no doubt save someone alot of trouble and expense if they are about to bolt on a set. There will likely be others who'll be wondering if they should pull theirs and have them checked. It would suck to R&R a pair of heads for no reason, but not as much as it would to have a catastrophic failure. Good luck Dennis, I hope they stand behind their product, lots of us will be watching to see how they handle this, (Shawn, have you checked yours???). Hope you're back together soon and as a bonus get that 10 second time slip!!! Mike

11-14-2006, 02:33 PM	#14 (permalink)
Sportruk Registered User Join Date: Mar 2006 Location: Brampton, Ont, Canada Posts: 1,808 View this user's gallery iTrader: 0 / 0%	Sorry to hear they went bad. I hope yours is an isolated case. That's strange that they are round. I had an old set that wore oblong, but that was with a stock rocker. I hope mine are OK. My engine builder says he checks everything he installs. I paid for blueprinting, so I hope he checked them. He will blueprint a $3800 set of rods, as he calls them a diamond in the rough.

11-14-2006, 06:29 PM	#15 (permalink)
huffentuff95 S. STOCK Tuned by Tweecer Join Date: Dec 2000 Location: Rosenhayn N.J. Posts: 6,627 View this user's gallery iTrader: 5 / 100%	It just don't add up, why didn't I see smoke or something, unless the cylinder pressure help burn off the excess oil!!!. I guess blowing these gaskets are a blessing . If you saw the look on the machinest face he just couldn't believe it. And to think I had my best 1/8 mile pass right before blowing these graphite gaskets.. Oh well we will see how this pans out!!!