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    Thanks to all who helped me rebuild my 470

    here is a couple of photos of the finished motor. All new main & rod bearings, new piston rings, new fuel pump, and so on, THANKS for all the advise this forum made it easier to rebuild
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    What oil filter to use on 470

    i'm starting a new thread because i don't want to hyjack a thread (merc 470) can some explain more on using aftermarkets or ones that are manufactured wrong. as some people on this forum know i'm rebuilding my 470. i plan on using a different oil filter because they are to expensive to buy and i...
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    470 project electronic ignition question

    i just did the conversion and i asked a question on a previous thread of mine called points to electronic ignition question. some one told me to remove the purple resistance wire from the coil + and tape it off out of the way. Splice a stranded wire directly into the wire going to the electric...
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    470 project new question on the rotor

    As some might know i converted to a alternator. during the rebuild i removed the old voltage regulator and the stator. what should i do with the rotor i read in this forum that some people remove the magnets what's everybodies opinion on this so i can do the right thing
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    470 merc water pump seals question

    it's a known fact that the seals wear a groove on the camshaft and you have to put a sleeve on the cam to compensate for these grooves when they are deep enough. question is do you have to put a different size seal on with the sleeve
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    470 project now i'm at the bore size

    i measured the bore size on the cylinders and they all measured 4.365" the standard size is 4.360" that's not much wear even the cam was in excellent shape even were the water seals slide on. my question is the compression was very good 145,150,145,130 number 4 is low so replace head gasket and...
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    where to find info on hydrolocking

    just want to learn more on hydrolocking can some one direct me in the right direction
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    New problem with 470 rebuild head and exhaust manifold stuck together

    did anybody have this probelm? i was trying to remove the exhaust manifold from the head and it's seized. there is three bolts and three studs, i got two bolts out the third one i snapped the bolt head off but there is plenty to grab when i get the exhaust off. so the probem is the exhaust is...
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    what to do with old voltage regulator wires

    as some of you know i'm rebuilding my 1983 470 i got most of it torn apart, i'm at the old voltage regulator i already have the wires to the stator tapped off but what about the others look at picture. top right red, bottom right orange, bottom left black ground
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    trying to find cam seals

    sorry guys i don't have any dealers in my location where i'm rebuilding engine so i got to use the internet to order parts. can someone direct me in the right direction for those dreaded cam seals for a 1983 470 merc s/n 6283569 THANKS
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    gear ratio for I-R outdrive

    i wanted to start a new thread for this as some people know my other thread I-R outdrive lub question. i priced out a drive shaft average price $400, i also have to repair skag there is not much there to work with so this will cost alot to repair not sure how much and my prop needs work they...
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    I-R outdrive lub question

    i pulled apart the outdrive to replaced the impeller when i pulled the bottom end off notice there wasn't any lubrication on the drive shaft ( the gear end) it was dry to me that doesn't look right there should be more grease, now does the upper grears get gear oil along with the lower gears and...
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    removing u joints broke something #@*&

    i'm familiar on the purpose of this part. i was replacing u joint and i broke a piece off the retainer yea i know rookie mistake. how important is this piece to be there, there is still allot of teeth to remove this part if needed. i have the merc I-R outdrive that piece that broke off just sits...
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    1983 470 170hp hardened exhaust seats

    as per my other thread i understand this hardening process now, i was talking to the three mechanics were i do my work and i ask them about this process and they explained why they did it but one mechanic said that if it's a 1983 motor that the head should be already done is this true for this...
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    OK i did the compresion test on my 1983 470 170hp

    i did the compression test and the results were very surprising #1 145psi, #2 150psi, #3 145, #4 130 so the dreaded #4 cylinder signs are showing but still good reading. so here is were i'm at i will be pulling motor to replace all gaskets they all need it. the head gasket and the cam seals i...
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    gimbal bearing removal question

    this might be a stupid question as posted before i'm rebuilding outdrive and 470 motor with the outdrive off and the gimble housing off to expose the bellows when i pull the bellows off to replace the gimbal bearing. the motor will be out of boat already can i punch out the gimbal bearing from...
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    proper compression for 470

    i will be testing the compression on a 1983 470 170hp serial number 6283569 i could not find what the compression is suppose to be in the manual what compression range should i look for to be great compression and at what compression range should i rebuild piston rings
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    bell housing removal tool

    i'm looking for the hinge pin removal tool were can you buy one i can't find one locally or what else can i use
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    alpha 1 prop removal question

    i pulled the prop off so i can drop the outdrive to repair bellows and gimbal bearing and to replace impeller when i drained the gear oil it was very clean meaning no water so i don't need to replace the gear seals but when i pulled the prop off i grabed the shaft and i can pull it in and out...
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    points to electronic ignition question

    as mentioned before i rebuilding a 470 i'm trying to find some threads on points to electronic ignition so i don't have to repeat questions but i can't find any, what is the good and bad about this conversion and do i have to change my coil to do this
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