View Poll Results: What material would you prefer for your fuel return caps?
Stainless Steel
4
28.57%
Aluminum
5
35.71%
Brass
4
28.57%
Plastic
1
7.14%
Other (state your material choice)
0
0%
Voters: 14. You may not vote on this poll
Return line caps...
Freshman User
Joined: Dec 2005
Posts: 47
Likes: 0
Come on man, that design per se has absolutely nothing to do with a 6.2. Like I said, most, maybe all, serious big OTR and off road diesels alike from International and others had that type injectors. I'd buy a set ASAP if they were available, 'cause i need new ones now.
Logistics Pro
Joined: Sep 2007
Posts: 3,737
Likes: 179
From: Western Mass
Its a nice system, just link from injector to injector, block off one end, the other end goes to the outlet banjo bolt fitting on the injection pump, then back to then tank. A lot easier than the pain in the rear plastic cap solution. One problem though, they do make the injector wider and harder to put a socket on.
Thread Starter
|
Cargo Master
Joined: Oct 2008
Posts: 3,330
Likes: 13
From: Eaton, CO
I want to see the finished project and know the man hours to complete a set.
Anyone know how hot those injectors get?
With brass or aluminum, he's going to drill and tap thru-holes for hose barbs and make the barbs are 1/4" longer than the stock plastic barbs. He said that they'll need to be brazed or TIG welded on depending on what material. He mentioned using an old injector to hold the caps in place while brazing / welding. He said he wants to think about the material a little more. He's like a kid in a candy store when I give him stuff like this.
Anyone know how hot those injectors get?
With brass or aluminum, he's going to drill and tap thru-holes for hose barbs and make the barbs are 1/4" longer than the stock plastic barbs. He said that they'll need to be brazed or TIG welded on depending on what material. He mentioned using an old injector to hold the caps in place while brazing / welding. He said he wants to think about the material a little more. He's like a kid in a candy store when I give him stuff like this.
Freshman User
Joined: Dec 2005
Posts: 47
Likes: 0
The temps are easy to check with an infrared gun, but the weather is not hot enough and i don't haul big loads so i can't come up with a worst case scenario, which is what you'd probably want.
This may be a little off topic, but I was wondering if there is some reason one couldn't tap the hole on the injector and put a barb there? All it has is a single hole. The rest of the return line would consist of T's and a "main line". This would at least eliminate the o-rings completely. Just a thought.
This may be a little off topic, but I was wondering if there is some reason one couldn't tap the hole on the injector and put a barb there? All it has is a single hole. The rest of the return line would consist of T's and a "main line". This would at least eliminate the o-rings completely. Just a thought.
Postmaster
Joined: Jun 2009
Posts: 3,420
Likes: 1
From: Maryland
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Elder User
Joined: Mar 2008
Posts: 912
Likes: 0
From: Marianna, Florida USA
The body is probably hardened. You could solder a tube in there. Too bad IH didn't do that. I guess they never figured on diehards like us running them long enough to become a problem. As far as temperature is concerned, I think Viton can handle higher temps as well as tolerate Biodiesel. It may be the ULSD that's causing our woes.
Last edited by Marianna2003; May 1, 2010 at 01:53 PM. Reason: Correct spelling
Freshman User
Joined: Dec 2005
Posts: 47
Likes: 0
The body is actually real soft, I tried with a drill. The problem is that the barb can end up pointing any which way when the injector is torqued down to spec. I can see at least four ways to deal with that:
(1) using different thickess copper washer at the bottom a la Caterpillar. I don't know if that small a change in installed depth would affect how the spray goes into the prechamber, maybe, maybe not.
(2) A long enough hose going to the mainline so that it can make a turn even from the "wrong side" of the injector,
(3) A 90 degree turn in the return hose right at the barb, hose points up and the mainline is running right above the injectors. That way it shouldn't matter too much which way the barb points,
(4) never mind the torque spec and turn the injector until the barb points where it needs to point.
(5)some combination of the above
But anyway, the metal caps would likely be a pretty good, long term solution. I'm looking forward to seeing a prototype and some price estimates from mechelement.
(1) using different thickess copper washer at the bottom a la Caterpillar. I don't know if that small a change in installed depth would affect how the spray goes into the prechamber, maybe, maybe not.
(2) A long enough hose going to the mainline so that it can make a turn even from the "wrong side" of the injector,
(3) A 90 degree turn in the return hose right at the barb, hose points up and the mainline is running right above the injectors. That way it shouldn't matter too much which way the barb points,
(4) never mind the torque spec and turn the injector until the barb points where it needs to point.
(5)some combination of the above
But anyway, the metal caps would likely be a pretty good, long term solution. I'm looking forward to seeing a prototype and some price estimates from mechelement.
Elder User
Joined: Mar 2008
Posts: 912
Likes: 0
From: Marianna, Florida USA
Sincerely,
Gene O
Thread Starter
|
Cargo Master
Joined: Oct 2008
Posts: 3,330
Likes: 13
From: Eaton, CO
This morning I bought a -58 to +1000 degree high temperature infrared thermometer at Sears. I ran the truck normal home and measured the temperature of the bottom of the injector. They were around 194 degrees.
My dad called and said the brass stock he wants to use is $40 per linear foot vs the $9 per linear foot aluminum. It looks like this round he's going with aluminum for the caps.
My dad called and said the brass stock he wants to use is $40 per linear foot vs the $9 per linear foot aluminum. It looks like this round he's going with aluminum for the caps.
Thread
Thread Starter
Forum
Replies
Last Post
alchemist1
1973 - 1979 F-100 & Larger F-Series Trucks
16
Jul 20, 2012 01:03 PM
lnthecurly
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
13
Aug 10, 2011 09:01 PM
LFDavidson
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
23
Nov 6, 2010 01:14 PM
deyomatic
1961 - 1966 F-100 & Larger F-Series Trucks
4
Dec 17, 2008 07:52 PM
