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  1. natemoore

    Help. Quick. Lube for alternator rotor 470

    I just threw out an old tube of "Chicago Manufacturing and Distribution Co. anti-scoring, extreme pressure Lubricant No.3" the other day, and low and behold, I need it today.:mad: Just kidding. Can I use Perfect Seal on the crankshaft end and inside diameter of rotor? Or 2-4-C grease? Gun...
  2. natemoore

    oil pump alignment

    Okay. Is this an attempt by Mercruiser to sell another $50 tool (91-148220)? I asked my boat mechanic friend if he had one. He said they never used one. I also remember a member of this forum saying the same thing. It seems the play built into the distributor shaft would account for any...
  3. natemoore

    Someone removed the thermostat on my 470

    I live in the panhandle of Florida and don't plan on running my boat when it's really cold out. I suppose someone removed the thermostat because of over-heating concerns. Should I put one back in?
  4. natemoore

    470 exhaust manifold, looks okay?

    I pressure tested my manifold. There are no leaks. That's good. You can see from these pictures that there is considerable erosion around the #4 cylinder mating surface, as compared to the #2, also shown. The Quicksilver manifold is $900. An aftermarket company called GLM is going to start...
  5. natemoore

    Think I found my coolant leak (470)

    Looks like this was the problem. Coolant was getting into my exhaust manifold through a leak in the exhaust elbow. The inside was eaten away. Cha-ching. Another $200. At least my exhaust manifold is good. I know we have a couple/three 470 rebuilders at the moment. This would be something...
  6. natemoore

    Testing trim limit and position sensors

    Anyone know how to test these? Seems like the limit switch would be an on-off microswitch and the sender would be a potentiometer (variable resistor). Any info is appreciated.
  7. natemoore

    470 impeller cover gasket squished out

    I was installing an aftermarket (Sierra) impeller cover gasket yesterday. I put Perfect seal on both sides of the gasket and torqued it down to 15 lbs-ft. I noticed that the gasket material squished out in a couple of places around the bolts. See photo. I've never had this happen before...
  8. natemoore

    What's it worth? Alpha one stern drive unit

    Since an SEI 106 is about $1200, and I've got a few hundred dollars in parts to buy for my stern drive unit, I'm considering just buying the SEI if I can get enough money for my unit. I've searched craigslist and ebay, but can't find anything but reman units. My unit runs fine. No water in...
  9. natemoore

    470 impeller, new style, won't tighten

    I was putting the impeller back on today when I started having self-doubts about it touching the front cover on the back side, so I took the impeller off again to get another look at the backside of the impeller and the inside cover. Then I noticed some aluminum powder on the threads...
  10. natemoore

    470 piston ring questions

    But first, I still need some answers on my "crankcase installation thread" before I button it up. I'd appreciate you looking at that one too. Now, piston rings..... The Mercruiser manual and the Hastings instructions included with the rings contradict each other regarding the orientation of...
  11. natemoore

    Field Expedient Rear Seal Installer, 470

    No rocket science here, just part of a 4" pvc cleanout, a couple of plywood discs (one rabbeted to accept pvc ring), and a piece of a wooden closet rod. Please post pictures of your own reverse engineered tools.
  12. natemoore

    470 crankshaft installation questions

    I checked my bearing clearances. All were within specs.:) Here are a few questions: When checking crankshaft endplay at the thrust bearing, should one shove the crankshaft to one side so that there is zero gap on one side of the thrust bearing, then measure the endplay at the other side...
  13. natemoore

    Proper orientation for 470 camshaft seals?

    Read this excerpt from the #8 manual. "1. Apply Loctite 8831 to outside diameter of all oil seals.... 2. Both water pump seal lips face water side.... 3. Fill space between water pump oil seals... 4. Install crankshaft seal with seal lip toward engine block. I've received conflicting...
  14. natemoore

    Visiting the machine shop tomorrow

    I'm taking my 470 engine to the machine shop tomorrow. He ball parked a figure over the phone for him to take my junk and return it as a rebuilt long block: $1800. I can't spend that kind of money right now. He quoted individual operations like boring ($60), turning the crankshaft ($90). I...
  15. natemoore

    removing crank sprocket 470

    My Merc. manual just says "remove" but doesn't say how. The camshaft sprocket wants to come off easily, but the crank sprocket is absolutely stuck on. Any tricks to getting this thing off? Wait, let me guess, a Mercruiser special tool for $200:D
  16. natemoore

    Pusher assembly/alternator rotor installer picture?

    Mercruiser part no. 91-93656A 1 Does anyone have a picture of this tool they could post for me? I can't find a picture anywhere, only a price, which I don't like at all. I'm sure I could make a field expedient installer. Seem like it would consist of a length of threaded rod, a thick steel...
  17. natemoore

    470 block on an engine stand question

    I pulled my engine yesterday. Today I'm going to put it on an engine stand. I'm just wondering if the aluminum block is strong enough to support the weight of the engine and accessories, including front mount. Any concerns? Nevermind. I googled again with different seach terms and found an...
  18. natemoore

    removing 470 quick question

    I'm removing the engine today and tomorrow. I'm a little confused by the Mercruiser manual. When it says I have to remove the "stern drive," which part does it mean? All of it? Just the part that has the prop and comes off with six bolts (once the trim cylinders are removed), or also the...
  19. natemoore

    470 cylinder casting question

    I just want to confirm what I'm gathering regarding the casting stamp on 470 cylinder heads and that is the casting stamp doesn't matter, i.e., they're all interchangeable? I'm getting ready to purchase one off ebay. Also, this looks like a 6, but it could also be an 8. Opinions please...
  20. natemoore

    inside look at cylinders MCM 165 (470)

    I'm not liking what I'm seeing, but I also don't have a lot of experience as to what is acceptable or not. What do you think? Should I go ahead pull the engine and rebuild it? Here are some pictures: http://s622.photobucket.com/albums/tt308/natemoore_2009/pistons%20cylinders/?albumview=grid...
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