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post #1 of 6 Old 10-03-2009, 01:00 PM Thread Starter
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Spool valves

Anyone ever hear of Spool Valves? If so where are they located?

I heard that bad spool valves can give you a rough running condition when cold.
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post #2 of 6 Old 10-03-2009, 01:02 PM
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Spool valves are an internal valve on the injector of a 6.0. They are probably responsible for 90% of 6L injector failures.

Kurt

shu873@powerstroke.org

'06 True Blue/Silver 250 crew cab
ARP's, EGR blocked
AFE stg.2, MBRP 4" pipe
Air Dog 150, ITP reg. return
Bulletproof oil bypass system
Banks technicooler
Ride rite air springs in the rear
EGT, boost, and fuel pressure gauges by DiProcol on the pillar

Plus a few other odds and ends...
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post #3 of 6 Old 10-03-2009, 01:44 PM
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more like 91% Kurt

-Evan

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Yeah, but your trucks a freak of nature...
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post #4 of 6 Old 10-03-2009, 10:40 PM
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Originally Posted by 03f250stroke View Post
more like 91% Kurt
and I just don't know why...

I heard they were the best design ever to come out of Siemens...

Kurt

shu873@powerstroke.org

'06 True Blue/Silver 250 crew cab
ARP's, EGR blocked
AFE stg.2, MBRP 4" pipe
Air Dog 150, ITP reg. return
Bulletproof oil bypass system
Banks technicooler
Ride rite air springs in the rear
EGT, boost, and fuel pressure gauges by DiProcol on the pillar

Plus a few other odds and ends...
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post #5 of 6 Old 10-04-2009, 08:11 AM
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Originally Posted by shu873 View Post
and I just don't know why...

I heard they were the best design ever to come out of Siemens...
? .

04 F-550 CC 6.0 4x4 cab n chassis 4.88 XLT 193K
Money maker with utility bed.
97 F-350 CC 7.3 ZF-5 4x4 4.10 324K
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post #6 of 6 Old 10-04-2009, 09:46 PM
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? .
Siemens is the company that made the 6.0 injectors for Navistar through a partnership. They are still making the injectors for the 6.4L now as well as the injection pump.

Kurt

shu873@powerstroke.org

'06 True Blue/Silver 250 crew cab
ARP's, EGR blocked
AFE stg.2, MBRP 4" pipe
Air Dog 150, ITP reg. return
Bulletproof oil bypass system
Banks technicooler
Ride rite air springs in the rear
EGT, boost, and fuel pressure gauges by DiProcol on the pillar

Plus a few other odds and ends...
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