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  1. Jim993

    Jasper Engines

    My Jasper was installed in April of 2007. It ran fine but the idle was rough. That was solved with replacement injectors in May 2007 at Jasper's expense. The truck also has a Banks Turbo which was transferred from the old engine to the new Jasper also in 2007. The "new" engine now has 41,000...
  2. Jim993

    What oil do you use?

    Mobil 1, 5W- 40 full synthetic turbo diesel oil.
  3. Jim993

    Coolant / SCA test strip question..

    This is what I have been using for about 15 years: https://www.amazon.com/CoolCheck-Antifreeze-Condition-Concentration-Coolants/dp/B07JWJWF72/ref=sr_1_12?crid=1P8PVEWG45P1E&dchild=1&keywords=accustrip+test+strips&qid=1603732616&sprefix=accustrip%2Caps%2C200&sr=8-12 About $5 delivered in two...
  4. Jim993

    Rotella 15w40 vs Rotella 15w40 Full Synthetic

    I used to use Rotella 15W-40 but switched to Mobil 1 5W-40 full synthetic a few thousand miles ago. My "new" engine (40,000 miles on it) uses less Mobil 1 5W-40 full synthetic than it used Rotella 15W-40. A good diesel oil keeps the very small soot particles in suspension so that they can be...
  5. Jim993

    New here but curious

    Bypass the glow plug controller with a manual push button switch. Keeps the glow plug controller from running away and burning out the glow plugs.
  6. Jim993

    Should this be tightened?

    Those are AC compressor belt tension adjuster bolts. They are probably already tight. Common to have some metallic shavings at the bolt heads because the bolts have integral lock ratchet surfaces on the underside of the bolt heads.
  7. Jim993

    Starts right up, runs rough, dies

    I took the water separator off mine in 1999. I do check the fuel filter for water when I change it every 15,000 miles. No water so far.
  8. Jim993

    Hot Transmission

    I recommend full synthetic transmission fluid. It is much less likely to "burn" or deteriorate under high temperature conditions. Most well known brand names manufacture full synthetic fluid, Valvoline, Mobil 1, Red Line....
  9. Jim993

    What else do you drive?

    '18 Honda CR-V, my '85 F 250 idi and my 2001 Corvette.
  10. Jim993

    And yet another no start 6.9 thread...

    Do you hear the glow plug relay click and have a red glow plug lite in the dash for several seconds when the ignition key is on cold? Even if it clicks, it does not mean that the relay is making contact. I am on my 4th glow plug relay in 20+ years. If the relay does not click first try...
  11. Jim993

    2 glow cycles now

    I think it is likely that the glow plug relay contacts are getting burned and not allowing enough current to the glow plugs. In 22 years my '85 6.9 has gone through 5 glow plug relays, often with similar symptoms.
  12. Jim993

    What in the wild world of sports is this?

    When I got my '85 6.9 in 1998, the factory water separator was there but disconnected. I took it out and have run with just the main fuel filter up on top adjacent to the injector pump for 120,000 miles, 22 years. I do change the main fuel filter every 15,000 miles and inspect the old one for...
  13. Jim993

    Coolant

    The key to coolant maintenance is to monitor coolant chemical condition at least annually and add supplemental coolant additive as necessary. Otherwise, you don't know what the condition is. I've been using plain green coolant for over 20 years but monitor with the following kit, about $6...
  14. Jim993

    Turbo

    Sorry, re reading your post, I did not address all your questions. Yes, the turbo will substantially improve power and make towing easier. I would not be without it. In my view, cavitation is an old wives tale. What actually happens is that because of high compression and combustion pressure...
  15. Jim993

    Turbo

    I have an '85 6.9 4x4 C6 with a Banks turbo kit that was installed in 2006. When the original engine died from unrelated reasons two years later, I put a reman 6.9 in and transferred the Banks to the new engine, now 14 years and 42,000 miles ago on the new engine. Couldn't be more pleased with...
  16. Jim993

    cold start issue

    My '85 F 250 6.9 had that exact symptom. Replaced the rubber seals in the line between the lift pump and the injection pump- FIXED. This was in 1998, the truck is still mine and is still fixed. It only takes a tiny seep, which will be evidenced by a damp area.
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