EGR RESTRICTOR PLATE
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From: San Antonio Texas
EGR RESTRICTOR PLATE
I've got a 88' 4.9/5spd (still not broken in , have only 198K on it) and very ? about the EGR Restrictor Plate. I have been jacking with the lean burn, surges, and what not since day one. Where can I get a plate and what holes need to be blocked/drilled? Love my FORD, hate hydraulic clutches.
Gary
Gary
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From: Southeast FLA
EGR RESTRICTOR PLATE
[updated:LAST EDITED ON 28-Oct-02 AT 08:34 AM (EST)]You can't buy them.
Go buy two new EGR gaskets (you'll use both - one on either side of the plate) and some sheet metal, and use one as a template to drill out the two holes for the EGR's bolts. You'll probably need tin snips, too, to cut the metal to your satisfaction.
If you want an EGR blocker plate, leave it as it is. If you want to restrict the EGR flow, drill a 1/8" hole in the middle of where one of the larger holes are. Only onf of them actually flow exhaust gas (I'm assuming that Ford only used one of the holes becasue the EGR was apparently made for the ~400 cubic inch V-8's, and those V-8's probably used both holes).
Clean the old gasket off well (scrape both the plenum and the EGR), then re-assemble with a new gasket (and gasket sealant?) on either side.
Best,
Go buy two new EGR gaskets (you'll use both - one on either side of the plate) and some sheet metal, and use one as a template to drill out the two holes for the EGR's bolts. You'll probably need tin snips, too, to cut the metal to your satisfaction.
If you want an EGR blocker plate, leave it as it is. If you want to restrict the EGR flow, drill a 1/8" hole in the middle of where one of the larger holes are. Only onf of them actually flow exhaust gas (I'm assuming that Ford only used one of the holes becasue the EGR was apparently made for the ~400 cubic inch V-8's, and those V-8's probably used both holes).
Clean the old gasket off well (scrape both the plenum and the EGR), then re-assemble with a new gasket (and gasket sealant?) on either side.
Best,
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Joined: Oct 2002
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From: Colora U.S.A.
EGR RESTRICTOR PLATE
I made one out of 1/8" steel. I used the metal working tools (drill press and porta-band saw) in a friend's shop but, with some patience, a drill, and a hack saw, you can do it too.
George
'87 F150 standard cab, 4.9L, Tremec 4 spd Manual, 4x2, 163,000 miles and counting.
George
'87 F150 standard cab, 4.9L, Tremec 4 spd Manual, 4x2, 163,000 miles and counting.
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From: Southeast FLA
EGR RESTRICTOR PLATE
Frank37, I take it you used a lot of layers of foil, or stuffed foil into the orifices? I don't think one layer of foil, slipped in as a plate, would hold up to the pressures very long.
Best,
Best,
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From: San Antonio Texas
EGR RESTRICTOR PLATE
Someone is missing a good chance to make some money, fabricate some plated and sell them. I would buy one just so I would not have to drink all that beer making a plate from Beer cans. Looks like this weekend I'll get some 1/8 steel and go for it.
Gary
PS Don't ever use the new wife's new dishwasher to clean car/motorcycle parts.
Gary
PS Don't ever use the new wife's new dishwasher to clean car/motorcycle parts.
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New User
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From: Colora U.S.A.
EGR RESTRICTOR PLATE
It works as long as the wife unit doesn't find out. Just think hot, soapy water and a little dry dishwashing detergent scrubbing the grease and oil off those parts... Sure would save a lot of hand-scrubbing time.
George
'87 F150 standard cab, 4.9L, Tremec 4 spd Manual, 4x2, 163,000 miles and counting.
George
'87 F150 standard cab, 4.9L, Tremec 4 spd Manual, 4x2, 163,000 miles and counting.
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From: The Big, Oregon
EGR RESTRICTOR PLATE
You mean I'm NOT supposed to use the dishwasher? Come on, just run it empty after- Plus you get that great oil/gear lube/atf taste in your everyday cooking! Lol, I bet my old landlord in AZ must have FREAKED when they saw the dishwasher, tub, and back porch!
Jared
Jared
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EGR RESTRICTOR PLATE
The EGR replaces some of the fresh air / fuel mixture with exhaust. The exhaust gas absorbs some of the heat of combustion. This reduces NOx formation. If you plug the EGR you may notice pinging. Be careful with the gaskets, if they are the metal foil coated with graphite. They are like knives.
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From: Southeast FLA
EGR RESTRICTOR PLATE
[updated:LAST EDITED ON 10-Nov-02 AT 08:28 PM (EST)]I may be wrong, but I'm not too sure the exhausgas absorbs the heat - I would think it would, more than likely, keep the heat at a lower level due to the amount of fresh air it replaces. More air equals a hotter burn.
Jump up to 89 Octane and it would probably be gone. A truck that runs right and is usable, even with more expensive gas, is loads better than a truck that dies like mine did at every stop sign or exhibits other headache inspiring problems.
Run right first, emissions second. Ford should have thought that out before using the 400 ci V-8's EGR on the straight sixes (even if they did block off one hole). Stupid idea from the get go.
Best,
Jump up to 89 Octane and it would probably be gone. A truck that runs right and is usable, even with more expensive gas, is loads better than a truck that dies like mine did at every stop sign or exhibits other headache inspiring problems.
Run right first, emissions second. Ford should have thought that out before using the 400 ci V-8's EGR on the straight sixes (even if they did block off one hole). Stupid idea from the get go.
Best,
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Freshman User
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From: San Antonio Texas
EGR RESTRICTOR PLATE
I made a restrictor plate from a new pie plate. (Unlike getting caught using the new wife's new dishwasher to clean part, I waited until the new wife was gone to make the plate.) I drilled a 1/8" hole where one of the large hole was located. Truck runs smooth, no pinging (87 octane). Thanks for the help.
Gary
Gary
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From: Wichita USA
EGR RESTRICTOR PLATE
The smaller orfice lets the egr work as it was intended just at a lesser degree, so the miss is gone and the egr system is still able to function normally. Block it off completely and you lose the benefits of egr.
New User
Joined: Oct 2002
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From: Colora U.S.A.
EGR RESTRICTOR PLATE
Just in case anyone is interested, I now have racked up more than 1000 miles with the restrictor plate on and, other than a starting issue 
I will take to another thread, it works as advertised. The miss at cruise is gone and it takes off from a stop, after it is warmed up, with no hesitation and application of only a little throttle.
Thanks one and all for your suggestions and help.
George
'87 F150 standard cab, 4.9L, Tremec 4 spd Manual, 4x2, 164,000 miles and counting.
I will take to another thread, it works as advertised. The miss at cruise is gone and it takes off from a stop, after it is warmed up, with no hesitation and application of only a little throttle.Thanks one and all for your suggestions and help.
George
'87 F150 standard cab, 4.9L, Tremec 4 spd Manual, 4x2, 164,000 miles and counting.