Search results

  1. J

    1992 Marine Power 454 Inboards Operating Temp

    I have a luhrs boat with 2 1992 marine power 454s fresh water cooled Have only owned this boat for 2 yrs last season I had to keep it at a slow speed due to a bent shaft. The other day I was finally able to open it up 3300rpms I noticed one engine runs 195-200 other one 185..195 to me that...
  2. J

    Inboard Drive Shaft Issue I need Help!

    I have a 1992 luhrs motryacht with 2 marine power 454's and borg warner trans. This is my second season with the boat last season I noticed the port side shaft looked to be out of round. So over the winter I had a new shaft installed with new coupling I put the boat in today It is doing the same...
  3. J

    Building A Mercruiser 350 Few Questions.

    I am trying to build a 350 for my speed boat the old engine was 100% trash and is gone nothing was salvageble except some small parts. The motor had salt water in it sat for years it was a 1985 merc. I have a auotomotive GM shortblock 1973 first gen? block #3970014 bored 30 over I already...
  4. J

    How To Determine If Motor Is 305 Or 350

    I am going to look at a parts boat saturday Id be buying it for just the motor dumping the rest the guy does not know if its a 305 or a 350 and says the serial number on bellhousing isnt there. So how exactly can i tell if its a 305 or a 350? Hoping its a 350 below is pic of motor.
  5. J

    1986 Mercruiser 5.7 Engine Rebuild Crankshaft Questions

    1986 Mercruiser serial 6793665 5.7 1 Piece rear seal with roller lifters I picked it up to put in my 19ft speed boat It has 2 spun road bearings. It looks like it was built not to long ago and in really nice shape so not sure what happened. I am going to rebuild it myself my problem is I have no...
  6. J

    1989 Glastron Carlson 19css Merc 350

    I just picked up a 1989 Glastron Carlson 19css project boat with a 5.7 merc that is seized and a alpha 1 gen 1 drive. The boat came with another 5.7 that I am going to tear apart and look it over I have a few questions. 1. The serial number of replacement engine is F358546 also says 5.7 lg sci...
  7. J

    1992 Luhrs Motor yacht Drive Shaft Issue

    I have a a 1992 Luhrs Motor yacht with 2 454 inboards and velvet drives that I have been working on this is my first inboard I am use to sterndrives. I bought it off local marina was abandoned worked on it all winter had 1 bent strut and 2 bent props fixed. I was told the shafts where fine but...
  8. J

    1992 Marine Power 454 Choke Thermostat Replacement

    I have a 1992 Marine Power 454 engine 4th gen with a Rochester 4 barrel carb 17059280 My choke tstat is bad having trouble finding the replacement on the stat its self it says 3792 Any help appreciated.
  9. J

    What To Use To Re Seal Flybridge/Other Areas

    I have a project 1992 Luhrs 34ft motor yacht that I am working It sat outside uncovered for about 10 years finally got it running going down the list of stuff to fix. The white calking around the outside of the flybridge and other areas is dry rotted and shot have some leaks I have a lot of re...
  10. J

    Looking For A New Gps/Depth Finder.

    I recently picked up a 1992 Luhrs 34ft Motor yacht all of the electronics on the boat is old and shot. It had a old all in one Garmin thru hull gps depth finder I don't know much about this stuff since my boats normally come with it in working order. The local boat store is not much help all I...
  11. J

    Marine Power 454 Inboards Few Questions.

    Not sure if posting in the right section don't see this brand listed? I have a 1992 Luhrs project boat I have been working on out of the water for about 10 years. It Has 2 Marine Power 454s Sportpac engines I personally have never heard of this brand I am use to Mercruiser I/O. I have a few...
  12. J

    Marine Power 454 Engines Fuel Pump

    Not sure if this is the right section don't see this brand listed anywhere but. I have twin Marine power 454s with Rochester 4 barrels this boat has been sitting a long time so I am looking to replace the fuel pumps. Someone at some point upgraded it to electric fuel pumps currently has carter...
  13. J

    Inboard Bent Strut And Cant Get Shaft Coupling Off

    I have a 34ft 1992 Luhrs project boat I am working on it has been sitting for many many years I have never owned a inboard before. It has a bent strut and props I am trying to remove the couplings off of the shafts pulled the set screws out but they are stuck even heated them up. there is not...
  14. J

    Looking At A 1992 LUHRS TOURNAMENT 342

    I looking At A 1992 LUHRS TOURNAMENT 342 this weekend I currently have a 94 Searay Sundancer 270 but have been looking for something with a flybridge. My marina is selling a 92 Luhrs really cheap like 3k it was abandoned and has been sitting for a while looks solid and in decent shape they have...
  15. J

    1994 Searay Sundancer 270 A/C Panel/tstat Replacement

    I have a 1994 Searay Sundancer 270 I am trying to get the a/c to work I plug it into shore power hit the breaker and automatically the fan turns on and it goes onto heat mode none of the buttons do anything on the control panel/tstat it just shows the temp but wont respond. I took it apart...
  16. J

    1994 mercruiser 454 What oil/filter to use

    I have a boat with a 1994 mercruiser mag 454 Previous owner told me he used 10w40 looks like a automotive filter in it. What is the correct oil/weight to use as well as what filter does everyone use? Engine has 300 hours on it. Thanks.
  17. J

    1994 Sea Ray Sundancer 270 Few Questuions

    1994 Sea Ray Sundancer 270 7.4 bravo 3 240 hours Boat has come long way from where it was in the spring it previously sat in a driveway for 5 years. It has been a awesome boat all summer and now that the season is coming to a end i have a few questions. 1. What is the proper way to winterize it...
  18. J

    New onboard charger install need some help.

    I have a 1994 searay sundancer I just bought a promariner prosport 44021 to replace my original charger from 1994. However when I opened the box it had a normal 110 plug on it?? is this normal now? my old charger the wires get directly wired to the unit? What is the best way to go about making...
  19. J

    1994 searay Sundancer 270 On board Charger/Converter issues

    I have a 1994 Searay Sundancer I am having a problem with the on board charger/converter. I finally got it into the slip plugged into shore power went to test charger and nothing happens no voltage to battery or anything showing on unit. I get power to main panel hit the ac converter switch I...
  20. J

    bravo 3 issues goes into gear when in N

    1994 searay sundancer 270 7.4 bravo 3 took it out first time today it ran ok once she heated up I slowed down and it died wouldn't start probably coil vaper lock ect going to order new coil and all that. However I noticed when I put it in N and rev it up bout 2000 rpms she slams into gear for a...
Top