what are some ways you can check for injector o ring malfunction after you've eliminated the fuel bowl?

would there be some kind of filter you can add with a t of some sort after the pressure regulator that maybe later you can open up later and check for oil?

my truck still runs pretty strong. Over the winter I've lost 1-2 mpgs. these could be due to a lot of things, but reason I'm thinking o rings is that it has also developed an intermittent idle wandering (idle jumps up and down) and sometimes it feels like there is a miss up to about 1500 rpms. Like i said truck still runs strong but maybe not as smooth as it used to. I will be changing the valve covers in the next few days and want to take advantage if i need to service the injectors, from what I read, it would be a good thing anyway. I put 40k miles since I've bought it, and with 276k I'm thinking its about time. also will be doing a compression test while I'm at it.

 

If you have the VCs off anyway, it wouldn't be that big of a deal to pull the injectors and do o-rings too. With that mileage, if they are the original injectors and o-rings, they could probably stand to be replaced.

 

That was my thinking, guess I should stop being cheap and just get them changed

 

Injector o-rings aren't too bad on the wallet. Get them from Riffraff....Alliant Injector O-rings - Riffraff Diesel Performance

 

yes, they aren't so bad.
I called ford and they wanted $17 or so each, around 135 for all of them. ouch!
I got a set from Diesel o rings. they were 7.40 each, but it's a local guy from Colorado, I know a few people that have ordered from and wanted to give him the business even if it was only $64. Best part is I ordered them yesterday at 2pm and checked the mail today at 5 pm and they were here


I also got these that I'll be putting on.

 

Have you changed the cps yet? And are those aluminum valve covers?

 

I'd say someone got a little tig happy with those. They sure are shinny

 

NO I haven't changed the cps. maybe I should but for now it's staying how it is.
Yes those are aluminum covers. mine are pretty messed up and I have quite a big leak coming from the bottom of each valve cover. this should fix it

 

Somebody did get happy, I only wish It could've been me one day though I'll get a tig welder and have skills like these.
I bought these.

Well that made a huge difference. I did these over the weekend, on two of the injectors you could really see where the oil was going in to the fuel side, and on another 3 there were just sings that the oil was seeping through the o ring. they were still the original and I'm glad I did this. now it idles so much smoother and no more smoke at start up and under acceleration.
I also installed a cross over high pressure line so that might have helped the quieter and smooth idle.
The valve covers went in nice too, they took care of my leak I had at the back of the gaskets. I had heard that the aluminum would transfer more valve noise and make It louder but I didn't really notice a difference, if anything it would be the opposite.



even though I took care of the oil leak at the valve covers, I still have some oil dripping of the back of the engine and transmission. I think it might be from the turbo or one of it's o rings. I sucks, now I'm going to have to take care of that sooner than I thought.

 

Congrats of that valve covers, looks very well, and I also was going to ask you if it sound louder with them. Where did you buy them?, are they expensive, compared with the OEMs?

I can see that you have the pyrometer in the DP, its better put it in the manifold, more accurate EGTs, just saying.

Saludos.

 

yes, that's how it came when I bought it, I won't change it until I do the up pipes and I can drill freely In the manifold. working on it. until now I just add 2-300 to what ever it's saying...that brings it to 100% accurate

no they aren't any louder, at least I don't think so. 1/4 inch thick aluminum does sure make for a nice seal at the head. looking back, they aren't crazy expensive but yes more expensive than the stock. I got them for 350.

 

Oki doky amigo. 1/4" is more than the stock material. Thanks for the answer.