I’m sorry but I don’t know what champ or monitor system is referring to. It’s a mercool heat exchanger on 7.4L mercruiser engine with thunderbolt ignition. Does that help.?
Thx guys, I can sand flux and neatly solder copper pipes but this sounds like it might b above my pay grade. I’m an electrician by trade but I have a few good HVAC techs that I work with. I know they have to braise condenser lines so is this something I should ask them to help me with. I’m...
Hello everyone, I’m a new owner of a straight inboard boat equipped with a fresh water cooling system. Yesterday I had my starboard engine start overheating so I shut it down and limped in on port. I just located what I hope is the only problem with cooling system. One of the copper 90 degree...
Hello all here’s a little more info if needed. Vessel 1989, 29’ Sea ray, powered by twin std rtn 5.7 and A1 G1 outdrives. Lost starboard side engine last season. Removed from boat, tore apart and found broken v spring in head. So was going to rebuild engine while it’s out but I wanted to see if...
Does it matter? Advantage,disadvantage of either. Have 1 working Std rotation on port now. Bad motor pulled on starboard side. Was STD rotation. Looking for any info that may be helpful in moving forward… literally and figuratively.. thx
So, I replaced the shift cable from merc. 5.7 to outdrive and still same problem, then I swapped lower unit out (with a used one), then I swapped the shift lever out because it seemed a little “sloppy” but nothing. Another merc/alpha boater said it could be a bent or worn shift shaft. Has anyone...
Could be several things
quality of fuel supply- empty contents if fuel filter into clear jar should be fresh clean gas
low fuel pressure measure fuel pressure at that rpm should have 4-6 psi
is the ignition system in good shape timing properly set and is full advance happening
carb could need a...
So 350 gm block with alpha 1 gen 1 outdrive. Put her in gear, give her gas everything is peachy until around 2,300 rpm’s and she starts bogging down. Starts up perfect, idles perfect, put her in neutral and she purrs at 4K rpm.. but not in gear.. electric fuel pump with Holley dbl pmp carb. I’m...
Hello everyone. I bought a can of gelcoat(no wax) at my local boat store 3 hrs ago. Opened the lid, grabbed my cordless dewalt drill, a small paddle bit and the can had about 2” of solids on the bottom. I proceeded to try and mix the can up and in every motion and speed possible and here I am...
Hello, hope everyone is well. I am replacing The 5.7 In my boat with A 7.4 and was hoping someone might know if the outdrive has to be changed for larger motor..? Thx
Sooo I’m no boat mechanic but I have pulled off about a half dozen mercruiser outdrives and never once.... until now ran in to an issue where the driveshaft Would not release(I had to hammer the nut off with a punch to remove unit) I tried everything I could think of today to pull it out and it...
Just looking for any input on the best way to diagnose the cause of faulty reading. Tried lowering unit, loosening screws and adjusting the sensor Both directions and gauge never moved from all up position. Was thinking That the next step I might take is to disconnect sensor wires from terminals...
