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  1. 6

    Right hand rotation firing order on OMC 3.8 liter v6 4 barrel carb.

    I have a 1982 Sea Ray 245 Sundancer. It has the twin OMC 3.8 liter v6 motors with 4 barrel quadrajet carbs. The port motor has a tag on the port valve cover with a model number of 384STMRCNC. I believe this is a right hand rotation motor on the prop. I believe the firing order from the...
  2. 6

    New to the OMC Sterndrive forum

    Allow me to start over. I have been a member of the marineengine.com forum for many years. I owned a 21ft Fiberform boat powered with a 318 Chrysler engine. I live in the Rocky Mountains and enjoy spending my time on a boat on reservoirs like Blue Mesa, Flaming Gorge, Ruedi and of course Lake...
  3. 6

    1982 3.8 liter 4 barrel Rochester quadrajet vacuum reading at idle.up

    Just rebuilt 4 barrel Rochester carb. replaced points and condenser on prestolite distributor. Motor fired up right away. Dialed everything in with timing light and dwell/tach meter. I rigged up a T off of the vacuum for the choke and installed a vacuum gage. At idle 550 rpm and 12 degrees...
  4. 6

    OMC 3.8L 4 barrel Rochester carberator air/fuel,adjustment

    What is the trick to getting on them air adjustment screws when you are adjusting timing and carbs. At idle.
  5. 6

    Yet another spark plug question

    I just completed a 318 long block build with some minor upgrades.Edelbrock intake EdelBrock 1409 carburetor (drilled for vacuum)Mallory distributor and Mallory coilI am running at altitude between Ruedi reservoir in eagle county Colorado and lake Powell in Utah 3600 feet and 8500 feet...
  6. 6

    Gettin ready to get ready

    finishing up a long block rebu finishing up a long block rebuild on a 318. What is the procedure to set up a 1409 edelbrock carb with a vacuum gage. Do you have to do the vacuum modification to the 1409? thanks for all your help this forum has been key!!!
  7. 6

    Barr exhaust manifold cooling tubes

    What direction do the holes on What direction do the holes on the tube go... The end of the tube is flared and doesn't make for a clean make-up with the gasket and end cover. Can i cut the flare off and solder the tube so it is flush in the manifold? I could only assume the tubes slide in...
  8. 6

    After market ignition system for 318 chrysler

    "Just ordered a long block and "Just ordered a long block and getting ready to rebuild a 1972 LM318 standard rotation, electronic ignition and raw water cooled motor. this motor powers a 1972 25' Fiberform cutty cabin with a Volvo Penta 270 Aquamatic out drive. The boat is used exclusivly at...
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