Ford Powerstroke Diesel Forum banner
21 - 40 of 118 Posts
Discussion starter · #25 ·
When I let my horse working ( steep mountain passes for example) I see 20psi boost and 3000-4000psi ICP at 70-75% IPR. High pressure in the injector oil system system = heat.
In addition to all the heat we see because of running the engine like every other engine. Whe should have an separat oil cooler for the HPO system when running the engine hard.
 
Discussion starter · #27 ·
Interesting that the Accurate Diesel part kit for the standpipe and dummy plug D-rings is part # AAP0028x2 when the Alliant part number is AP0028. Winder why Accurate Diesel needs both "A"'s.
The Alliant parts kit is for one engine side only. The one from AccurateDiesel is for both sides. But: the part number has changed at AccurateDiesel. I bought my D-rings about 6 months ago. This "old" no. that I mentioned above no longer exists.
On my next AccurateDiesel order I will buy exactly these new D-ring parts you mentioned Mark. After that, I looked at the parts with the old no. from AccurateDiesel , the rings from Alliant and then also the new ones from AccurateDiesel (with the new #)
 
Links that I have referenced in the past to the various options for these "seal kits":




Or get the updated standpipes and dummy plugs themselves (note the "enhanced" ones from DieselSite are not currently available):





 
Discussion starter · #29 ·
When I let my horse working ( steep mountain passes for example) I see 20psi boost and 3000-4000psi ICP at 70-75% IPR. High pressure in the injector oil system system = heat.
In addition to all the heat we see because of running the engine like every other engine. Whe should have an separat oil cooler for the HPO system when running the engine hard.
Postet this video on FTE, too.
The long steady load on the engine (as an example, driving uphill with a heavy load) that lead to a high EOT. The pressure load on the sealing rings in the system is enormous.


Image
 
Discussion starter · #37 ·
Thanks. I edited my post to reflect that shore hardness (measured in a durometer) is the typical method here as well.

I just do not know how much a bump up to say 90 would affect it.
90 shore rings I have a few here. But I have not been able to detect any difference (to 70 shore rings). (I do not have the special test equipment).
I have written to 2 major manufacturers here in GER, maybe I get help here. As mentioned in the PN, we have a holiday here on Monday,....so can take a few days. ...
 
The type of compound makes a big difference in that test with the scales also
@Hartwig Nothing wrong with your test -- it shows comparison

I would assume Viton to the the most likely here

The "D" shape ring allows for a wider seal surface to be used in a shallow groove
I doubt a standard oring could be used without cutting the ring on install
 
owns 2006 Ford F250 Lariat FX4
owns 2006 Ford F250 Lariat FX4
  • Like
Reactions: Hartwig
When talking about Viton in specialty applications, there are a dozen or so "types" of Viton. All seem to be good at elevated temperatures. Some can't handle temperatures below 0*F, and some do not handle pressure (compression set also) as well as others.



 
21 - 40 of 118 Posts