Plugged PCV line
Thread Starter
|
Postmaster
Joined: Jul 2003
Posts: 2,688
Likes: 4
From: Southern Oregon
Plugged PCV line
While waiting for the heads I've been cleaning and painting items to be reinstalled. Took a look at the metal line going from back of valley to PCV,
and found it almost completely plugged with crud. There was a passage less than 1/4 in. diameter. Cleaning this out has been a challenge. I've let it set overnight filled with carb cleaner twice. Used a whole can of carb cleaner. Numerous solvent baths, blown out with air, and it is better but not clear. What is left is a tar like substance, and I sure dont want to hook it back up and have some of that stuff dislodge into the PCV or worse, intake. Tomorrow I'll try to fill the tube with liquid Draino and let that stand overnight. If that doesnt work then will try a propane torch and cook it to powder.
A rubber hose from back to front is an option, but the original setup is better to my liking. It wouldnt be surprising to find buried in the original service schedule reference to this line being cleaned every 25,000 miles or so.
The engine is 64 292. Maybe FEs have a similar setup. You might want to pull your line and take a look.
and found it almost completely plugged with crud. There was a passage less than 1/4 in. diameter. Cleaning this out has been a challenge. I've let it set overnight filled with carb cleaner twice. Used a whole can of carb cleaner. Numerous solvent baths, blown out with air, and it is better but not clear. What is left is a tar like substance, and I sure dont want to hook it back up and have some of that stuff dislodge into the PCV or worse, intake. Tomorrow I'll try to fill the tube with liquid Draino and let that stand overnight. If that doesnt work then will try a propane torch and cook it to powder.
A rubber hose from back to front is an option, but the original setup is better to my liking. It wouldnt be surprising to find buried in the original service schedule reference to this line being cleaned every 25,000 miles or so.
The engine is 64 292. Maybe FEs have a similar setup. You might want to pull your line and take a look.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
While waiting for the heads I've been cleaning and painting items to be reinstalled. Took a look at the metal line going from back of valley to PCV,and found it almost completely plugged with crud.
The PCV systems filter is clogged up.
There was a passage less than 1/4 in. diameter. Cleaning this out has been a challenge. I've let it set overnight filled with carb cleaner twice. Used a whole can of carb cleaner. Numerous solvent baths, blown out with air, and it is better but not clear. What is left is a tar like substance, and I sure dont want to hook it back up and have some of that stuff dislodge into the PCV or worse, intake. Tomorrow I'll try to fill the tube with liquid Draino and let that stand overnight. If that doesnt work then will try a propane torch and cook it to powder.
A rubber hose from back to front is an option, but the original setup is better to my liking. It wouldnt be surprising to find buried in the original service schedule reference to this line being cleaned every 25,000 miles or so.
The engine is 64 292. Maybe FEs have a similar setup. You might want to pull your line and take a look.
The PCV systems filter is clogged up.
There was a passage less than 1/4 in. diameter. Cleaning this out has been a challenge. I've let it set overnight filled with carb cleaner twice. Used a whole can of carb cleaner. Numerous solvent baths, blown out with air, and it is better but not clear. What is left is a tar like substance, and I sure dont want to hook it back up and have some of that stuff dislodge into the PCV or worse, intake. Tomorrow I'll try to fill the tube with liquid Draino and let that stand overnight. If that doesnt work then will try a propane torch and cook it to powder.
A rubber hose from back to front is an option, but the original setup is better to my liking. It wouldnt be surprising to find buried in the original service schedule reference to this line being cleaned every 25,000 miles or so.
The engine is 64 292. Maybe FEs have a similar setup. You might want to pull your line and take a look.
Inside the adapter is this: B2TZ6A631A .. Crankcase Ventilation Filter Assy.
Use with the PCV Adapter or the Road Draft Tube. The same filter was used for both applications on all Y Blocks with a tube or the PCV adapter, also used on 215/223/262 I-6's.
The filter is prolly clogged up solid. When was the last time it was changed?
Prolly the last time the truck was serviced at a Ford Dealer and that was prolly years ago, cuz today, most people haven't a clue there's this filter there.
Thread Starter
|
Postmaster
Joined: Jul 2003
Posts: 2,688
Likes: 4
From: Southern Oregon
At the back of the engine where the road draft tube was, with a PCV valve, there is an adapter there instead w/a nipple on it that the lines (one rubber, then steel, another rubber) to the PCV connects to.
Inside the adapter is this: B2TZ6A631A .. Crankcase Ventilation Filter Assy.
Use with the PCV Adapter or the Road Draft Tube. The same filter was used for both applications on all Y Blocks with a tube or the PCV adapter, also used on 215/223/262 I-6's.
The filter is prolly clogged up solid. When was the last time it was changed?
Prolly the last time the truck was serviced at a Ford Dealer and that was prolly years ago, cuz today, most people haven't a clue there's this filter there.
Inside the adapter is this: B2TZ6A631A .. Crankcase Ventilation Filter Assy.
Use with the PCV Adapter or the Road Draft Tube. The same filter was used for both applications on all Y Blocks with a tube or the PCV adapter, also used on 215/223/262 I-6's.
The filter is prolly clogged up solid. When was the last time it was changed?
Prolly the last time the truck was serviced at a Ford Dealer and that was prolly years ago, cuz today, most people haven't a clue there's this filter there.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Well that sure is surprise news! I have had at least 6 of these type valley pans, all with the small cap with nipple, and have never seen a filter in any. Needless to say there is no filter in the pan I just cleaned up. That would explain why the tube was rendered useless. Any idea where I can start to look for a couple of the filters? Thanks a lot ND!
It wasn't too long before the steel line clogged up.
B2TZ6A631A from west to east =
COLLECTORS AUTO SUPPLY in Oroville WA has ? (800-414-4462). This source lists a quantity of 22 for EVERY obsolete part they have, so who knows what the actual quantity is?
BELL-MCCALL MOTOR CO. in Hamilton MT has ONE = 406-363-2011.
GRIESEL MOTOR CO. in Okarche OK has ONE = 405-263-7242.
ANTIQUE AUTO SUPPLY in Arlington TX has ONE = 817-275-2381.
KLIMESH MOTOR SALES in Calmar IA has ONE = 563-562-3241.
WESLEY OBSOLETE PARTS in Liberty KY has SIX = 606-787-5293.
GREEN SALES CO. in Cincinnati OH has 42 = 800-543-4959.
GUY M. FISH CO. in Spartansburg PA has TWO = 814-654-8311.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
I edit A LOT, so it's a good idea to read my posts again, after an hour passes by.
Last edited by NumberDummy; Dec 14, 2009 at 11:08 AM. Reason: LOL I need a reason?
Thread Starter
|
Postmaster
Joined: Jul 2003
Posts: 2,688
Likes: 4
From: Southern Oregon
Trending Topics
Thread Starter
|
Postmaster
Joined: Jul 2003
Posts: 2,688
Likes: 4
From: Southern Oregon
The WA outfit wanted $30 ea.
Called MT and they were out.
KY wasnt taking calls just messages.
Have 3 on the way from OH for $7 ea.
Called MT and they were out.
KY wasnt taking calls just messages.
Have 3 on the way from OH for $7 ea.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread Starter
|
Postmaster
Joined: Jul 2003
Posts: 2,688
Likes: 4
From: Southern Oregon
wrong part
The B2TZ6A631A filters arrived today. Luckily they only sent two instead of 3, because they are for the block side mounted road draft tubes, history by the time the slicks came out. These will not fit any Y without the side mount draft tube, including the draft tubes that went from the rear of the valley down the backside of engine.
With a number starting B2 it should have been a red flag. Guess there is a good reason why I havent seen a filter in any of 6 or 7 valleys.
With a number starting B2 it should have been a red flag. Guess there is a good reason why I havent seen a filter in any of 6 or 7 valleys.
