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  1. AKJohne

    97 5.7 LX, A 2 GEN 2 drive questions

    Some progress, more questions... I removed the bell housing.. a bit of a pain for sure, as I suspected everything looked good, will go back with all new as long as I am there, Due to age and lack of knowledge on what I was looking at it needed to be done... peace of mind is worth something when...
  2. AKJohne

    97 5.7 LX, A 2 GEN 2 drive questions

    Several questions; Replacing the water pump on the motor (FWC), what type of sealant should I use on the gasket/s? I am resealing the lower unit and cannot remove the seal carrier (input shaft) as described in the book, do they normally come off unscathed or is just a matter of sacrificing the...
  3. AKJohne

    1997 5.7 LX leak down test

    I am concerned about the results of a cylinder leak down test I did today, ~ 172 hours on a rebuilt (others) motor. Engine has closed cooling. Test was performed with engine hot ~ 140F and cylinder PSI at 100 #1) 84 #3) 93 #5) 92 #7) 76 #2) 90 #4) 88 #6) 80 #8) 84 All leakage that I can...
  4. AKJohne

    Mannies & Risers, reuse or replace

    Port side back together, fired it up and let it warm up, then re-torqued everything once it cooled some. Got about 1/2 a turn. Checked compression 152/165. Then lowered the transom cover.......#$@%&! Always something.
  5. AKJohne

    Mannies & Risers, reuse or replace

    Some progress yesterday, SB side is reunited with the engine, waiting to do the Port side after I get a "in-hull" transducer situated. Much easier access with the mannie out of the way . C​​ompletion after the holiday, Merry Christmas to you guys. Thanks for the help
  6. AKJohne

    Mannies & Risers, reuse or replace

    Figured I would replace the valve cover gasket/s while they are easy to get at, I bought some Fel-Pro blue colored rubber looking gaskets. Was hoping there was some type of gasket for the (4) center hold-down bolts, none on there now, any suggestions...? Or just let er weep?
  7. AKJohne

    Mannies & Risers, reuse or replace

    Just looked at this again and cleaned it with some 400, and i think Chris is right and likely a slight flaw in the casting
  8. AKJohne

    Mannies & Risers, reuse or replace

    ​​​​​​​I spent some time tuning up the mating surfaces on a piece of quartz with some lapping compound, pretty happy with the results. I did notice what appears to be tiny cracks in one of the risers I bought (used). It seems pretty minor, however if it is a crack it will only get worse. What do...
  9. AKJohne

    Mannies & Risers, reuse or replace

    As always, thanks Chris for your reply and help... See attached pic/s, that would explain why the elbow/rubber/elbow connection never looked quite right, however I think it was ok in terms of water flow at the top of the cast elbow. Curiously I am the third owner of this 1997 motor and am...
  10. AKJohne

    Mannies & Risers, reuse or replace

    Finally back on this, winters are long in AK, The elbow kit 14801A 1 showed up today, however the bend is different than the old one. Did I get the correct part? Was the old one wrong? ​​​​​​​
  11. AKJohne

    Mannies & Risers, reuse or replace

    1997 5.7 LX, San Juan HE, closed cooling, This motor was originally in a Alumaweld, now in a Glasply. 200 hours freshwater, 140 hours in saltwater. After several years of work we finally launched this spring. I had removed the riser/elbows, cleaned and installed with new gaskets. We had to...
  12. AKJohne

    How far can you advance a Thunderbolt V...?

    1997 5.7 LX, 4 brl carb. Thunderbolt V w/ knock sensor According to the book base timing on this motor is 10 degrees. I am not sure what ICM/module I have (its original), I am wondering what happens if I "cheat" base timing to get more TA? Assuming the knock sensor/module is working properly...
  13. AKJohne

    Neutral safety switch on 5.7 LX

    I have a 1996/97 5.7 LX with AI GENII. I bought this package used to install in a Glasply I have been redoing. I could use some help sorting out a neutral safety switch, the prior boat that this motor came out of had a single handle binnacle. I will be using a sea dog 2 handle binnacle that...
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