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  1. Blueghost924

    1982 Mercruiser 470 - where to mount shift plate

    I have a Mercruiser 470, and I'm getting ready to re-install the exhaust manifold (cast iron manifold; Mercruiser part 71527). When I bought my "project" boat, the shift plate and shift cables were never connected on the engine, and the shift plate was laying in the cabin. Where does the shift...
  2. Blueghost924

    Mercruiser 470 - replacing exhaust gaskets...use sealant or no?

    Hello, I'm going to replace the exhaust manifold, coolant reservoir and exhaust elbow gaskets this weekend. In past work on my cars and gaskets, I've spread a thin layer of Permatex. Should I follow the same practice here or just install them bare? My engine is a 1982 Mercruiser 470 with the...
  3. Blueghost924

    Mercruiser 470 3.7L - replacing exhaust elbow & shutters and got unpleasant surprises

    Thanks Chris - and great term...FrankenMerc :laugh:. I've laid out all the parts in my current exhaust configuration that lead up to the lower exhaust pipe, and here's what it looks like: The Mercruiser part numbers for each from top (exhaust elbow) to bottom is: 76325 70981A3 42423...
  4. Blueghost924

    Mercruiser 470 3.7L - replacing exhaust elbow & shutters and got unpleasant surprises

    Hey Chris - thanks for the reply and sorry about the delay. The original engine serial that came with the boat is A409012. I say original because I know that my current Mercruiser 470 is not the original, and the scrap one that came out may not have been as well. Here's a picture of the top...
  5. Blueghost924

    Mercruiser 470 3.7L - replacing exhaust elbow & shutters and got unpleasant surprises

    Mercruiser 470 3.7L - replacing exhaust elbow & shutters and got unpleasant surprises Well, I've finished up a lot of the electrical wiring, and now I've shifted to the exhaust system. This is an engine I bought earlier this year and installed recently - and I knew the exhaust elbow and...
  6. Blueghost924

    Mercruiser 470 - replace exhaust shutter with boat still in the engine?

    I've gotten a lot of my electrical problems straightened out on my project boat (21 foot Renken with Mercruiser 470 / 1.84 sterndrive) and will focus on exhaust and sterndrive soon. I'm sure I need to replace the exhaust pipe shutter. My engine is installed in the boat, but the sterndrive is...
  7. Blueghost924

    Mercruiser 470 with 1.84 MC-I sterndrive - exhaust bellows still good?

    Need an opinion on something. When I bought my boat last year, it didn't have the exhaust bellows or the shift cable bellows. But, inside the cabin the previous owner left an exhaust bellows that looks like it's never been used. Again, this is from November 2013. This exhaust bellows has...
  8. Blueghost924

    Mercruiser 470 wiring system - extra red wire?

    I'm still working out electrical problems with my 1982 Mercruiser 470 electrical system. I'm looking at my 9 pin wiring harness that goes from the engine connection to the 8 pin rectangular plug inside the center console. Aside from the 10 gauge red wire, there appears to be a 14 gauge red...
  9. Blueghost924

    1985 Renkin with 1982 Mercruiser 470 engine harness - instrumentation wiring help

    I bought a 1985 Renkin that has a 1982 Mercruiser 470 with the typical round plug engine wiring (9 pin I believe). It runs through the boat and up to the center console, where it plugs into the instrumentation harness via an 8 pin rectangular connector (although there's only 7 wires). BTW - in...
  10. Blueghost924

    5 pin wiring harness - blue wire is about 1.3 volts

    I've bought the 5 pin wiring harness to allow the blue wire to connect to my solenoid bypass (I have a disc brake hydraulic actuator). Just to test things out, I connected the 5 pin harness to my adapter, had my son put the truck in reverse, and I measure voltage from the blue wire across to...
  11. Blueghost924

    Tie Down calipers - are they shot? Switch to Kodiac?

    Attached are pictures of my Tie Down disc calipers that may not be useable. I've tried to push the pistons back a little and they won't budge (maybe they are bottomed out already?). Anyway, I obtained them and the discs at a cheap price. Looking at the calipers, are they even worth trying to...
  12. Blueghost924

    Mercruiser 470 - heat exchanger removal

    With the old Mercruiser 470 heat exchangers, has anyone every had it be almost impossible to get a socket into that recessed center nut? The 2 outer left and right ones are a breeze. I thought about removing the left and right clamps to see if the heat exchanger itself can be taken off the...
  13. Blueghost924

    Testing electrical components in 1986 21 CC boat without engine installed

    Hi, I don't have my motor (1982 Mercruiser 470) installed in my 1986 CC Renken boat quite yet. I have a strong deep cycle marine battery that I was wondering if I could hook up to the electrical plug (that normally plugs into the motor) to test some of the electrical accessories on the boat...
  14. Blueghost924

    Replacing disc brakes - is this the old seal left behind?

    I've taken off the old rusted out hulk of the old drum brakes that were on the trailer when I bought it. In the picture, hopefully you can see that there's a metallic gold band still on the axle towards the square flange. I believe this is the old brake seal, and not actually part of the axle...
  15. Blueghost924

    Need to have boat trailer inspected - Virginia - can't find VIN serial numbers

    I live in the good ol state of Virginia, and I'll soon be ready to have my trailer inspected (just put on disc brakes). I can't seem to find the trailer VIN serial number anywhere on it. The title shows it to be a make called "MATI" with the year 1985. This being Virginia, everything is...
  16. Blueghost924

    Tie Down disc brakes - how do they assembly?

    I was practically given a set of disc brakes by a friend of a friend who was moving and didn't need them. He gave them to me in a box, and they appear to be in good shape. The calipers say "Tie Down Engineering" on them. My question is how a couple of the parts get assembled on to the axle...
  17. Blueghost924

    1982 Mercruiser 470 - low compression

    I hate to re-open this, but I wanted to bring a little closer to it. I've been busy with other things and such, but 2 things have happened: 1. I found a guy somewhat local that had a 470 that was turn key ready to start up, and it had the alternator conversion. Decent price and compression...
  18. Blueghost924

    1982 Mercruiser 470 - low compression

    Well, I did re-position the push rod back into place and torque the rocker arm bolt back down to 20 ft-lbs. Started turning the motor over by hand, and it got a little difficult when approaching the 0 mark. I put the valve cover back in place, hooked up the battery and re-performed the #1...
  19. Blueghost924

    1982 Mercruiser 470 - low compression

    I took the valve cover off this afternoon. A ha! Found the issue! The pushrod has slipped from under the rocker arm. In the meantime, I've placed the valve cover back on (no bolts), and wanted to know advice or comments?? I know the simple answer "seems" to be just re-position the pushrod...
  20. Blueghost924

    1982 Mercruiser 470 - low compression

    As a couple of folks know, I've been trying to get my 1982 Mercruiser 470 up and running. A couple of months ago, I performed a compression test on all 4 cylinders and came up with numbers greater than 100 psi. Tonight I was thinking that I may have not performed the test exactly as outlined...
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