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  1. K

    Which outdrive do I have?

    1978 Mercruiser, 165HP Inline 6 Stern drive serial number 4939023 Just so I know which threads on this forum would apply to my outdrive...Is my outdrive considered Alpha? Pre-Alpha? Bravo? Thanks
  2. K

    How connect fuel pressure tester

    165HP Mercruiser, Inline 6 How would you connect a fuel pressure test gauge to test a low volume Carter fuel pump? Its connected to the carb with a steel line. I don't think I want to cut that line in order to hook up the test gauge. The connection at the pump is a compression fitting. Am I...
  3. K

    Hard start warm, pic of carburetor (leaking?)

    165 HP, Inline 6 Mercruiser, Rochester 2GC carburetor: I thought I solved my warm start difficulties but seems like its happening again. Engine starts up fine when cold. Starting up when warm IMMEDIATELY after shutting of engine is no problem. Let the boat sit for a few minutes and starting...
  4. K

    Trim control question

    1978 Caravelle with 165HP Mercruiser inline 6, I/O. I currently have the dash mounted 3 button trim control and a throttle lever with the neutral safety cutoff switch (I think that's what its called). Is it possible to swap out my current throttle with one that has the trim button built in to...
  5. K

    When to change impeller

    Mercruiser, 165hp I/O Is it a good idea to change the impeller EVERY year regardless of how many hours the boat has been used since the last impeller change? What if it sits idle more than actually running throughout the year. Does that make any difference? The last time I changed my impeller...
  6. K

    Where to put blocks under boat

    I've read the many posts on how to raise and block up your boat in order to pull the trailer out. My questions are: 1) Does it matter "where" you put the blocks under the boat? I plan on using railroad ties cut to about 16" lengths and stacked as needed between the strakes (I think that's what...
  7. K

    Transom construction

    I just enlarged a hole in my transom above the water line so my new sonar transducer twist lock fitting could fit through. I'm just curious if what I'm seeing through that hole is how the transom is built all the way down to the bottom of the boat. The first 3/8" of the exterior looks like...
  8. K

    Transducer cable help

    I just removed my old transducer cable and am installing the new transducer for a new Lowrance HDS-5. The old transducer twist lock connector was able to fit through the 7/8" hole through the transom. The new connector is just a tiny bit bigger than my old connector and won't fit through the...
  9. K

    Sonar/GPS fuse

    I'm installing a new Lowrance HDS-5 sonar/gps unit. The inline fuse it comes with is a blade type fuse with an "E" stamped on it. What size fuse is this? I've never seen one of these. How many amps in case I need to replace it? The specs in the owners manual doesn't say what size fuse to use.
  10. K

    Drilling holes for transom mtd transducer

    I have a fiberglass boat and am about to install a new transducer. I've read several threads on how one should drill and attach the transducer. One method, which seems to be the "correct" way, is to drill oversized holes, fill with epoxy, then drill pilots in the epoxy for the smaller...
  11. K

    Sonar/GPS power connection question

    Going to install a new HDS-5 unit. With this sonar or any other unit for that matter, is it best to connect the power directly to the battery? I was looking at my switch panel that has toggle switches for the navigation lights, anchor light, blower, horn, and 3 more unused switches labeled...
  12. K

    Hard starting warm - carburetor problem???

    I've read many posts trying to solve my problem and think I've narrowed it down to the carburator. I have a 1978 165HP Mercruiser I/O that starts just fine cold and also starts fine right after shutting off the engine as long as it's restarted within a minute or two at the most. Let it sit for...
  13. K

    Outdrive painting

    I've read many many posts about repainting the outdrive and recall reading that some who've done this have had good luck with Rustoleum brand paint. After I clean and sand the outdrive I plan on hitting just the exposed aluminum with zinc chromate. Then I plan on hitting the entire unit with...
  14. K

    Zinc anode bolt help!

    I've finally gotten around to starting my outdrive repaint job. While going through the prep work of cleaning and sanding I see the zinc anode at the bottom of the gimbal housing and decide to remove it so I can really get in there and clean the metal. It came off pretty easy with a pair of...
  15. K

    Mercruiser exhaust manifold leak

    I just got some bad news from the shop regarding my boat. Mercruiser 165 HP inline 6. Bad news because it's going to cost $300 for them to replace the exhaust manifold gasket. They're hoping the leak is due to a bad gasket. I debated doing this myself to try and save some money but decided...
  16. K

    Intermittent engine clicking

    1978 Mercruiser, 165hp 6 cyl. I'm getting intermittent clicking or chattering from what I think are the valves, or maybe lifters (I know nothing about valves and lifters, I just searched google and read this may be the cause of the noise). It will happen at both idle speed and cruising speed...
  17. K

    Alternator belt replacement worries

    I have a 165hp, in-line 6 Mercruiser and want to replace the alternator belt. I found a couple other posts about how to do it, but wasn't sure if those methods applied to my engine. I've attached a pic showing the two bolts on the port side I plan on removing, along with the block that looks...
  18. K

    Painting outdrive while assembled

    I've searched and read many posts about painting an outdrive, from cleaning to sanding to priming and final coat. Sounds like this is usually done with the outdrive still completely in tact and mounted on the boat, which is what I plan on doing. To all who have done this, how did you get in and...
  19. K

    Raising boat off trailer

    I want to add a couple bunkers to my trailer. The boat is a 16 ft fiberglass bowrider and the existing bunkers are only 5 feet long. So basically the forward 11 feet of the boat is being supported by the front bow roller and the front keel roller. I plan on welding on some plates to the trailer...
  20. K

    Exhaust question

    On my 165 HP Mercruiser I/O there are two exhaust ports, one on each side of the stern drive. I don't know what that part of the stern drive is called so I attached a pic. When I have the engine running with the ear muffs water comes out of these two ports (which is normal...I hope). The water...
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