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    Seriously Peaved - 470 - pot 4 wet. Oil fully emulsified and me fully fed up.

    Hi all, the darn engine is a revelation. It. I got totally stoked that I ran her up and she maintained temp on muffs for 30 minutes and I thought we'd cracked it. I was about to maiden her and I did my engine checks only to find white oil. I then did compression - 135 all pots. Must be the...
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    MC-1 Trim not working - one cylinder stuck

    Hi all, Getting closer to the water ! Wednesday is a good tide and I only have 1 showstopper. I took the cylinders off the mounts today to bleed and noticed that only 1 was working and doing the work for the other. I undid the pipes from the cylinder and confirmed flow on activating the...
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    Run up my 1977 470 today and...

    She ran great ! I fitted a Faria water tem switch thats rated at 217 F US Resistance. I then connected tot he guage that was green / red indicator - no temps witten on it. After 10 mins on the muffs she for to the red but inly just in it. Should I worry ? I have a faria chesapeake black...
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    Head Casting Numer - 470

    Hi All, Considering buying an alloy head for my 470 but need to know the casting number. Where can I find it ? Thanks. Ron. p.s - finally time to run her up tomorrow. Considering the muffsd and hose for 1 hr - too much ?
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    Do I need to bleed the pwoer trim on my MC-1 ?

    Hi all, I just changed the anodes on my MC1 and during replacement the 2 bolts securing the anode to the trim splitter on the base of the out drive by the transom sheered. I removed the hydraulic pipes to remove the diverter valve so I could drill and retap to M8. This was successful but do I...
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    87-806951 Water Temp Switch - Switching Temp ?

    Hi all, I found an equivolent faria part for the audible alarm system but need to know the switching temp in order to prove its application. Does anyone know what the merc part switches at please ? Merc - http://www.perfprotech.com/store/assembly/AUDIO-WARNING-SYSTEM,1620-340.aspx Faria -...
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    Tips on MC1 Lower leg installation ?

    Evenin. Just noticed that after replacing my MC1 lower drive unit I cant select the forward position on the controlls. I suspect something went wrong on my install but cant understand what ? Might have left her in forward when istalling the unit. I guess I wil have to drop it and do it again...
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    Mercruiser 470 Audible Alarm Installation confusion.

    Hi All. I got the Mercruiser 470 kit but had to use a teddington water temp switch designed for the alarm system. http://www.asap-supplies.com/marine/temperature-alarms/high-temperature-warning-switch-99-degrees It has 3 contacts. Common, ground and ? Looks like this - It wont fit next...
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    Helicoiling in restriced spaces - Any creative advice ? 470 Alternator bracket.

    Hi All, Just a quickie this time ! I discovered that the holes that the alternator bracket is secured to are both stripped. I have M10 x 1.5 helicoils ready to go in but alas I only have 8 - 10 inches and no way to get my electric drill in there to drill out the holes for the new helicoils...
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    Haleluja followed by Arrgghh Shoot. - Merc 470 impeller melted

    Hi all, Finally my 470 runs. Turns out the starter was the cause of all my problems. Loaded the new one - started first turn of the motor. Me jumping for joy forgot that it was in gear and went to inspect the tub which was by then empty and white smoke billowing from the impeller intakes. So...
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    Merc 470 Alloy Head Options ?

    Hi all. I have the opportunity to buy a head for a decent price. Will a 429 / 460 one work with minimal setup changes ? Spec as follows - Intake/Exhaust port volume: 275cc/100cc Combustion Chamber volume: 95cc Valve size: 2.19x1.75 Valve Springs: Single with dampner 125lbs closed...
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    Help - 470 Starting issues - Argghhh !!

    Hi Guys, Sorry to pester but I think I now have good reason to post this. 1977 470 serial 477XXX Story - Bought it - ran fine. Brought home - Ran fine Took to boat yard - starter shorted. Replaced starter - broke solenoid - replaced solenoid - no start. Got spark, but carb is throwing...
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    Rochester 2bbl question

    Hi all Rebuilding my card from a 1977 470 serial 477xxx and seem to have a few bits missing And wanted to know what effect this would have. On the choke the piston is missing along with the pin The accelerator had no ball bearing in it and now has one but no retainer fitted below the spring...
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    Have I killed my slave solenoid ? 470.

    hi all I was trying to diagnose an ignition issue where I only get 3 volts at the coil tonight and I took a live from the slave sol and put it to the resistance wire on the choke that feeds the coil. Click headed then no volts at coil and no click from solenoid when ignition it switched to run...
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    Advice on 470 Please.

    Hi forum, I just got me a Draco 1800 ST 1981 build with a 470 fitted as the powerhouse. The engine has had some mods - Alternator replaced with aftermarket No V. Reg in water anymore Stock Distributor New uprated Coil Allegedly rebuilt last year with new gimble bearings and bellows etc. She...
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    Mercruiser 140 / 470 -Identification required - please help

    Hi Forum, I just became the proud owner of a Draco 1800 ST Powered by a 3.0l Merc 140 - or so I was told.... The starter failed when trying to run the engine up the other day and I had to take it off to find that the pos post was shorting agains the armature as the bacolite insulator has...
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