Fuel injector cross/help
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Tuned
Joined: Apr 2015
Posts: 336
Likes: 24
From: Michiana
Fuel injector cross/help
Well lets start with this. The truck is an 88 F250 4wd with a 460. I started on an engine rebuild last spring. (2016) The guy doing the machine work is very good, but slow. I bought parts when I tore it down. I bought a set of rebuilt injectors off the bay. All put together the truck runs bad. Misses. Ok I tracked it down to the fuel injectors.
I pulled 2 injectors that seemed the worse, and put in 2 of the old ones in their place. It ran a lot better. It still has a miss.
My first question, are the reman injectors just crap and I should put the original ones back in??? Or are the reman the wrong ones.
The original ones in the truck are E7TE-B1B. The reman ones I was sent are F55E-A2E. They have been sitting in the bag unopened since I got them.
The truck has year old fuel in it. It doesn't seem bad. Was going to run it out and put in fresh and run some injector cleaner through it. Now I am thinking just go back to the original injectors. Problem is 3 of the original ones look rough. They look slightly melted like they went through a small engine fire, but the harness is ok. Just the connectors looked bad. They have been replaced.
I pulled 2 injectors that seemed the worse, and put in 2 of the old ones in their place. It ran a lot better. It still has a miss.
My first question, are the reman injectors just crap and I should put the original ones back in??? Or are the reman the wrong ones.
The original ones in the truck are E7TE-B1B. The reman ones I was sent are F55E-A2E. They have been sitting in the bag unopened since I got them.
The truck has year old fuel in it. It doesn't seem bad. Was going to run it out and put in fresh and run some injector cleaner through it. Now I am thinking just go back to the original injectors. Problem is 3 of the original ones look rough. They look slightly melted like they went through a small engine fire, but the harness is ok. Just the connectors looked bad. They have been replaced.
Cargo Master
Joined: Mar 2010
Posts: 3,328
Likes: 292
From: Laramie, WY
Put some pressurized injector cleaner into them and cycle them open with a 9v battery. You can watch the spray pattern (or lack of) and get them good and clean. I used a can of Berryman and got creative with hoses to connect the can to the injectors.
Lead Driver
Joined: May 2011
Posts: 5,775
Likes: 443
If you have room in tank for fresh fuel, you'll probably be fine. Otherwise siphon it out and use it for the lawn mower.
Better safe than sorry.
Old injectors (AND "REMAN'S"!!) need to be tested thoroughly to confirm their condition, otherwise you'll never know if your truck is running properly. Many a truck suffers from poor injector performance.
Better safe than sorry.
Old injectors (AND "REMAN'S"!!) need to be tested thoroughly to confirm their condition, otherwise you'll never know if your truck is running properly. Many a truck suffers from poor injector performance.
Tuned
Joined: Sep 2014
Posts: 358
Likes: 7
From: Ky
Just went through a return of injectors bought on Ebay.
This was for the better 460 in my '89/250.
Suffice to say Rock Auto is a great place to compare because of the photo's, and then call Standard Motor Products Tech line to compare the actual number on each injector.
The Ebay "New Un-boxed Standard FJ 717 " listed 24/lb./hr. big block injectors turned out to be for a Chrysler product, 20 lb./hr application.
So for that motor, which has 74k, I opted for the new Standard FJ 717 but they are PRICEY.
But after a rebuild, you may want something you know is right.
This was for the better 460 in my '89/250.
Suffice to say Rock Auto is a great place to compare because of the photo's, and then call Standard Motor Products Tech line to compare the actual number on each injector.
The Ebay "New Un-boxed Standard FJ 717 " listed 24/lb./hr. big block injectors turned out to be for a Chrysler product, 20 lb./hr application.
So for that motor, which has 74k, I opted for the new Standard FJ 717 but they are PRICEY.
But after a rebuild, you may want something you know is right.
Thread Starter
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Tuned
Joined: Apr 2015
Posts: 336
Likes: 24
From: Michiana
It looks like the F55E-A2E is a 24 lb flow rate, from what I have found. I am not sure on the E7TE-B1B. I think they are interchangeable. I am leaning toward pulling them all and putting the originals back in.
Cargo Master
Joined: Mar 2010
Posts: 3,328
Likes: 292
From: Laramie, WY
Clean the originals before putting them back in. Search youtube for how to bench clean injectors. I've had stuck injectors come alive again. It's easy, and then you're not left hoping that they work okay with 25 years of varnish built up.
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Thread Starter
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Tuned
Joined: Apr 2015
Posts: 336
Likes: 24
From: Michiana
Well I did not get to clean them before I put the old ones in. Just new orings. They ran fine when pulled. I didn't get your message about doing a cleaning before I did the swap. It didn't take to long, just the passenger side rear bolt is a bear to get to. It kind of points rearward toward the upper intake. I just loosened it pretty far with out taking it out. It gave me enough room to swap them. After that it ran great.
The ebay ones were garbage. The guy was supposed to be good at cleaning and testing them. I wonder if he used a good solvent and flushed/tested them. Then the sitting for a year the solvent dissolved more stuff, dried and plugged them up. I don't think anyone would have purposely sold them this way.
BTW all the old fuel is burned out now. It is a 460 so it does not take long. I dumped a bunch of seafoam in the tanks. Maybe it will do some good. Not sure if anything is any better. Beside pulling them again.
The ebay ones were garbage. The guy was supposed to be good at cleaning and testing them. I wonder if he used a good solvent and flushed/tested them. Then the sitting for a year the solvent dissolved more stuff, dried and plugged them up. I don't think anyone would have purposely sold them this way.
BTW all the old fuel is burned out now. It is a 460 so it does not take long. I dumped a bunch of seafoam in the tanks. Maybe it will do some good. Not sure if anything is any better. Beside pulling them again.
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Lead Driver
Joined: May 2011
Posts: 5,775
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Seafoam in the tanks is good to clean, go heavy on the cleaner for a few tanks and if they need to be cleaned, they will be.
It's nice to physically see the spray during cleaning and testing, but the reality of it is that dumping cleaner in the tank does the same thing.
It's nice to physically see the spray during cleaning and testing, but the reality of it is that dumping cleaner in the tank does the same thing.
Thread Starter
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Tuned
Joined: Apr 2015
Posts: 336
Likes: 24
From: Michiana
The can of seafoam said treats up to 16 gallons. I tossed 2 cans in one tank and 1 in the other. I only had 3 cans. Nice to have it running well. I if had more time I would have liked to give the injector cleaning a try. (outside the truck) It would be nice to see how they spray.
Trailering
Joined: Mar 2022
Posts: 24
Likes: 0
Just went through a return of injectors bought on Ebay.
This was for the better 460 in my '89/250.
Suffice to say Rock Auto is a great place to compare because of the photo's, and then call Standard Motor Products Tech line to compare the actual number on each injector.
The Ebay "New Un-boxed Standard FJ 717 " listed 24/lb./hr. big block injectors turned out to be for a Chrysler product, 20 lb./hr application.
So for that motor, which has 74k, I opted for the new Standard FJ 717 but they are PRICEY.
But after a rebuild, you may want something you know is right.
This was for the better 460 in my '89/250.
Suffice to say Rock Auto is a great place to compare because of the photo's, and then call Standard Motor Products Tech line to compare the actual number on each injector.
The Ebay "New Un-boxed Standard FJ 717 " listed 24/lb./hr. big block injectors turned out to be for a Chrysler product, 20 lb./hr application.
So for that motor, which has 74k, I opted for the new Standard FJ 717 but they are PRICEY.
But after a rebuild, you may want something you know is right.
I ordered these of rockauto and they are supposed to fit the 460 big block Ford's. There are pretty cheap too.
I just want to be confident these are 24lb/h and not less. Can anybody confirm that? I can't find any specs on them anywhere. Thanks!
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