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  1. C

    Ac gurus need a quick answer

    You may have to buy an adjustable thermostatic switch. I failed to comprehend that it's an under dash unit.
  2. C

    Ac gurus need a quick answer

    The low pressure switch has an adjustment screw between the 2 male connectors. Adjust it counter clockwise to lower the cut out pressure. R134a should cut out @ 20 psi
  3. C

    Purchased Inexpensive Brake Drums = Bad Idea

    Same with rotors too. I got bit too many times and now I turn new ones before I put them on.
  4. C

    Engine oil for 7.3 idi?

    They used to make a cf-4 oil that's for 4 strokes.there must be enough of a difference.
  5. C

    Engine oil for 7.3 idi?

    No.its designed for 2 stroke Detroit diesels only. It does not have the correct additives for a 4 stroke diesel.
  6. C

    Engine oil for 7.3 idi?

    Does not meet spec for the 7.3l idi.
  7. C

    Engine oil for 7.3 idi?

    In theroy a straight weight oil should stay in grade better than a multi viscosity oil. IIdont think falling out of grade is a problem at all. Are there any cj4 straight weight oils? I can't find any.
  8. C

    Ford oil confusuin

    Wpp is warren oil company. They are huge! They make most house brands,STP,supertech etc. They make very good stuff without the big name advertising so they can sell it cheaper. IMO their oils are every bit as good as the familiar name brands. http://www.warrenoil.com/
  9. C

    Ford oil confusuin

    Many here have had concerns about the new ck-4 oils. Ford says not to use them in a ford truck with a diesel. I was at vatozone tonight and they had 2 oils that pass the WSS-M2C171-F1 spec. The expensive motorcraft oil and the wpp made STP oil. So those 2 oils are OK to use in our trucks if...
  10. C

    Rear Axle Oil Seals R&R...Easy or PITA?

    You definatly want to pack the bearings with grease. It may take several miles for the oil to work its way out to the bearings. After a good longvtest drive check and fill the diff.
  11. C

    Engine Oil Changes

    I ran the super tech oil in my old peterbilt. It's a very stout oil.especially for the price. I sent in samples the add pack is very similiar to Delvac. Use it with confidence.
  12. C

    zinc additive in newer Delo 400 need?

    Whoever said that lowered zddp had an effect on oil life such as losing viscosity faster had no clue. Zddp is mainly to protect flat tappit cams. We have roller lifters. In an extreeme application zddp helps with rocker life too. But we don't have stiff valvesprings either.
  13. C

    zinc additive in newer Delo 400 need?

    Whoever said that lowered zddp had an effect on oil life such as losing viscosity faster had no clue. Zddp is mainly to protect flat tappit cams. We have roller lifters. In an extreeme application zddp helps with rocker life too. But we don't have stiff valvesprings either.
  14. C

    Engine Oil Changes

    I found some valvoline that meets Ford spec xxxxx.look for the Ford spec on the bottle. Iirc the 15w40 is not affected by the additive rules. Only 30 and down.
  15. C

    need help for newbie re: 7.3

    I can't help with your part search but thank you for doing a thankless job and keeping us knuckleheads in line.
  16. C

    what coolant do you use and why?

    I use the coolant we stock at work. Its a silicated green coolant with sca's already in it. I mix it with deionized water.
  17. C

    Bought one! Now to drive it 600 miles

    Bring oil
  18. C

    Water pump preference - Int'l, motorcraft, other?

    Napa and autozone sell the same water pump. Different box is all. Napa's rebuilt started and alternators are pure junk now. No shops will use them as they are a guaranteed comeback.
  19. C

    Water pump preference - Int'l, motorcraft, other?

    The slow moving parts like our water pumps will be made in China regardless of where you buy it. Not enough volume for a company here to make them. The motorcraft one from the dealer will likely be the same garbage the auto parts stores carry.
  20. C

    Cylinder #1 Pressure Sensor

    Why would a shorter line effect the timing? If that line is 2 inches long or 2 miles as long as its full of a non compressible liquid a 1/4 inch movement on one end will cause a 1/4 inch movement on the other end
  21. C

    7.8l Ford Turbo diesel

    They are junk. Getting parts is nearly impossible these days.
  22. C

    Lets build a data base for alge issues

    Doesn't the heat just make the water mix with the fuel and get pumped through your injectors and injection pump? I'm running a spin on water trap filter. Never seen any water cone out when I drain it.
  23. C

    Entire truck shakes between 1000 and 1500 rpm

    I drove a customers truck that acted like that. It had a few new injectors and a few old ones. I'm guessing that the injectors we're popping all over the place.
  24. C

    Lets build a data base for alge issues

    I have heard of it. Never seen it in person. My peterbilt sat 20 yrs. 2 new batteries and I drove it to home. My f250 sat a while. No issues.
  25. C

    Change oil pressure switch to sender?

    My stock sender moved the gauge according to our pressure. The replacement was just an on off switch.

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