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  1. R

    What to do with leak down and compression test results

    I will do one around my next oil change and see if anything has changed.
  2. R

    What to do with leak down and compression test results

    I sort of get the same feeling about these additives. I have read the Safety Data Sheets on a few of them that include general information about their composition, and I don't see how they do anything that they claim to. For instance, Seafoam is a mixture of petroleum distillates...
  3. R

    What to do with leak down and compression test results

    I am planning to check things over again in a couple thousand miles. I replaced the spark plugs at the same time that I did the compression and leak down tests and the engine is running a lot better now with better fuel efficiency (~2mpg). I also plan to get a borescope to see if there is...
  4. R

    What to do with leak down and compression test results

    Got my Blackstone report in. No bueno. It looks like I have a head gasket job in my near future. The truck has also just started seeping oil externally on the exhaust side from what looks like the head gasket, but it is hard to tell.
  5. R

    What to do with leak down and compression test results

    I should have done that. I had them laid out by cylinder for a while, but I cleaned them up to see if I could see any damage. I will pull the new plugs after a few hundred miles to see how they look.
  6. R

    What to do with leak down and compression test results

    All of the plugs had some scaling on them (does that suggest anything in particular?). No noticeable difference between cylinders. I had never taken the plugs out before, so I have no idea how many miles were on them. I gapped all of the old plugs and they were all over the 0.031" spec from...
  7. R

    What to do with leak down and compression test results

    I will continue to drive for a while and monitor symptoms. I will wait to see what the oil analysis has to say.
  8. R

    What to do with leak down and compression test results

    Does anyone have an idea at what compression levels start to cause a misfire on a cylinder? If I recall correctly, the FSM specs 179 psi as a minimum, and my cylinder #3 is at 120 psi. If that gets much lower and starts to misfire then I will need to look into a bottom end rebuild right? Does...
  9. R

    What to do with leak down and compression test results

    Right on. I will order a kit. Hopefully I get nothing but good news.
  10. R

    What to do with leak down and compression test results

    I am glad you mentioned that. Pushing coolant into a cylinder is not something I had considered. I will continue to drive for a while and monitor symptoms. The truck needs attention for sure in other areas, but I wanted to gauge the general engine health before I handed my wallet over to the...
  11. R

    What to do with leak down and compression test results

    That all makes sense. The compression test and leakdown test are certainly telling me there is some sort of issue with cylinder 3. So you all would do additional testing before you start tearing into the engine? Is there any risk of causing additional damage to the engine if I continue to...
  12. R

    What to do with leak down and compression test results

    I can look into getting an oil analysis done and doing a combustion gas test. From what I understand of the leak down test results though, air pressure cannot get into the radiator without a leaking head gasket. I also know that I am losing coolant somewhere. What would the results of an...
  13. R

    What to do with leak down and compression test results

    Negative. I figured if I was getting air in the radiator at 75 psi, the head gasket was compromised.
  14. R

    What to do with leak down and compression test results

    Hey fellas. I have a 1996 LX450 and I noticed a had to add a tiny bit of coolant over the past 1000 miles. I couldn't find any leaking hoses, and as far as I can tell it has been running fine. I performed a leak down test on each cylinder followed by a compression test. I did the leak down...
  15. R

    Best place to buy new OEM parts for 1996 LX450

    Thanks for all of the suggestions fellas. I am looking forward to start tossing some money in this pit!
  16. R

    Best place to buy new OEM parts for 1996 LX450

    I am new to the site. I am sure this information is on here somewhere, but I have had not luck tracking it down. I am planning to replace the power steering pump and hoses, and I have noticed a wide variety of prices for new OEM parts online. It sounds like from some of the threads that I have...
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