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Injector o rings

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Old Sep 23, 2016 | 07:16 PM
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Injector o rings

I plan on re sealing all of my injectors tomorrow, so I go to the dealership to buy eight injector seal kits and I notice motorcraft only comes with three o rings. It looks like the two bottom o rings for the fuel and a o ring for the wire connector and it does not come with the top o ring for the oil. I wish I could just order the seal kit from Alliant, Bostech or another reputable dealer but I would like to do the job tomorrow. Oreilys has the BWD injector seals in stock http://http://www.oreillyauto.com/si...itemDetailTab_

This o ring kit comes with seven o rings and I can only think of four o rings that is on the injectors, two on the bottom for the fuel, one on the top for the oil and one for the wire connector. Where do the other three go?
 
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Old Sep 23, 2016 | 07:57 PM
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One is a copper washer -one the top injector seal -one for the inside of the wire connector - outside of wire connector- two fuel orings and a snap ring
 
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Old Sep 23, 2016 | 08:00 PM
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Old Sep 23, 2016 | 08:28 PM
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BWD 274806 - Fuel Injection Seal Kit | O'Reilly Auto Parts
This one has seven o rings and a copper washer, no snap ring.
So if there is two for the wire connector then there will be two extra in this package.
 
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Old Sep 23, 2016 | 08:34 PM
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Yes two extra. Are you sure you can't wait to do the orings and get a kit that will last. Hate to see you have to do it again because the material was substandard. If your not going to do the top injector orings I would get the Ford parts and make sure the copper washer is in the bag if not get eight of them.
 
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Old Sep 23, 2016 | 08:40 PM
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If you don't change the copper washer... do not remove the injectors. That seals them, any time those injectors come out, you need to replace the copper washer at a minimum.
 
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Old Sep 23, 2016 | 08:50 PM
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Yes I'm doing top injector seals and nipple cup seals in the oil rail. I have a hpo leak and fuel in the oil, so I was just going to change all o rings and copper washers while I'm in there. I have heard bad reviews on aftermarket injectors but not to many on aftermarket o rings. I hope these will be good quality.
 
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Old Sep 23, 2016 | 11:33 PM
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Stuttering or sticking

I have an 05 f250 harley edition with 147k miles

If i do t warm her up for a full 10-15 she stutters for like a good 1/4 mile or less like 2 blocks

Could it be injectors or trans
 
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Old Sep 23, 2016 | 11:39 PM
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We have seen several failures with BWD on the top seal. Cant speak for the rest of the seals on the injector but the top seal is a softer seal and wears quickly.
 
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Old Sep 24, 2016 | 12:34 PM
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Whats a bwd
 
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Old Sep 24, 2016 | 06:24 PM
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Originally Posted by Dmc007
Whats a bwd
The brand name of the seals.
 
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Old Sep 24, 2016 | 06:40 PM
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So when I originally air tested the hpo system I could hear a small leak coming from the passenger side valve cover. Today I pulled the valve cover and air tested again, closed the Ipr and couldn't really find a definitive leak. If I stuck a hose under the oil rail and listen from the other end I can hear a small leak somewhere but it sounds more like it could be coming from down in the engine and not the injectors. Since I was in there I went ahead and pulled all the injectors and installed new seals anyway. I have read that if you air test the system the high pressure oil pump is supposed to leak a little bit. I wonder if that's what I'm hearing? Or could the oil pump itself be leaking bad enough to cause a hot no start condition?
 
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Old Sep 24, 2016 | 07:09 PM
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Forgot to mention the stc fitting has already been replaced. How can I diagnose if the branch tubes are leaking or not?
 
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Old Sep 27, 2016 | 06:02 PM
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Update... after replacing the injector seals I pressured the oil rails up before putting the valve covers on. This time there was air blowing from around injector #3. So I pulled the oil rails and replaced that o ring again only to find that that didn't help. Then I replaced all nipple cup seals, didn't help. Finally I used a air nozzle with the rubber tip on it, set the air pressure to 40 psi and stuck it on the top of the injector and air is blowing out of the two holes on either side of the hpo inlet. It would be my guess this injector is bad and needs replacing. Could this be the hot no start problem I was having?
 
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Old Sep 27, 2016 | 06:36 PM
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Depends one where the Pintle is positioned.

There are a couple guys much better at injectors than I, you should wait to condemn it until one of them weigh in.
 
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