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  1. M

    hard fuel line

    I have to reroute and make a new pump to carb line for my 5.7 mercruiser. I planned on using epoxy coated 3/8 steel line from auto parts store and bending to fit. I found a Sierra part number for a flexible fuel hose with the correct flare ends on it as well. Any issues I should know about...
  2. M

    timing program difference 5.0 to 5.7

    Do any of the Merc pros know what the difference is between the ignition module timing curve for a 2000 model year gen+ 5.0 compared to similar 5.7?
  3. M

    effect of additional weight

    How much difference in prop selection would additional 850# make? Is it enought to justify 1 step down in pitch? Went out to test new engine and 17P (aluminum) prop, but only had 2 adults and 1/4 tank of gas, Im guessing a more typical load would add somewhere around 800+ pounds passengers...
  4. M

    hour meter install

    Just installed a new engine and want to add an hour meter. Im planning to stick it back under the engine cover and was actually consideringmaking a bracket to mount it off of the exhaust riser. They have holes used for the shift mech and on one side they are not used so it would be easy to...
  5. M

    wheel bearing grease

    I am in the middle of repacking bearings and trying to decide on what grease to use. I have read use a marine grease, and others just use a regular bearing grease if in freshwater. We are only in freshwater, and I have high temp brg grease I was going to use. I figure if I put on new seals...
  6. M

    3 or 4 blade.. reasons not to

    Im going to try something different. What im interested in is reasons NOT to go to a 4 blade. There are all kinds of posts praising the 4 blade switch and if I look at pretty much any help section about the 4 blades, they all say the same thing better hole shot, better midrange cruise ...
  7. M

    MW to Solas ?

    I currentlky have Michigan Wheel aluminum prop, thinking about trying a Solas aluminum. Any experience between the 2, and how they react. If I go up 2" pitch in the solas is it going to be a predictable 350-400rpm change? Or will the Solas react a little different. If it matters its on a...
  8. M

    carb fitting sealer

    Anybody ever have to use a little sealer on the threads of your carb fitting to get it sealed. If so did it ever cause a problem? Local shop did that to mine, i always tried to evoid sealer on the fuel fittings worried about it deteriorating and getting into the fuel system. Maybe its not a...
  9. M

    prop questions

    Replaced old 305 with vortec 350. Went out with the same 17P prop we had, and it would run to 4800 without problem and still have throttle to go. I know I need a different prop but trying to find some guidance on this. This was with light fuel load, and only 3 adults, so with normal load...
  10. M

    305 to 350, change prop?

    Looking for some advice here..just finished up repowering a 2 barrel 305(valve issues) with 4 barrel 350 in a 2000 Maxum 2100SR with 1.47 Alpha 1. How much difference in prop pitch will this require, all else being the same. Just general guide line will help get me started. With the 305 we...
  11. M

    hour meter

    Im finishing up a new engine install and thinking about adding an hour meter. I have gone back and forth between adding to the dash, or just in the engine bay somewhere. In dash would be easy just to tie into the switch, but its not like its something you need to watch constantly so in the...
  12. M

    thunderbolt v

    I have a 2000 Merc engine, that has TB5 ignition, but no knock module. What does this ignition act like as far as timing advance? Does it still try to vary timing based on what it sees the engine doing or does it have a more defined advance curve. With no knock sensor I dont see how it...
  13. M

    exhaust manifold gasket

    Anybody use Fel pro 17420 for a SBC application? Any preference Fel pro or the stock Mercury part?
  14. M

    383 with Alpha 1

    How well will an Alpha one Gen2 1.47 ratio, hold up behind a mild 383? Wont be anything special just basically stock rebuild 383, nothing high performance. HP wise and rpm wont be much different than a 350, but will have a decent amount more low end torque. Im replacing a 305 with a 350 and...
  15. M

    intake manifold gasket

    I am replacing intake on vortec head 5.7engine. Has anyone used the Fel pro MS98000T gasket for this? Instead of the usual plastic carrier and thin sealing bead, it is a metal core with substantially more rubber sealing the ports. Looks like a lot better gasket, but I cant find if the...
  16. M

    thermostat

    Is there something special about the Mercruiser thermostat.... it looks to me like a typical chevy thermostat but in 160*. Mercruiuser part cost is 25$ +/-, I can get a stainless thermostat at the parts store for 10$ or less...
  17. M

    mercruiser head gasket

    Can anyone tell me on a vortec 5.7 around a 2000 vintage, or even a new one, are the head gaskets the typical GM head gasket .028 thickness like was used on the trucks? Or is it something different? Next question would be is the MErcruiser replacement an actual GM gasket with a merc# on it...
  18. M

    hardened exhaust seats

    On a SBC marine engine, do the exhaust valves need to have hardened seat inserts? Or are the induction hardened integral seats sufficient. I find some literature saying the marine/industrial heads do have inserts in them, but in other places saying its not necessary. If you are just using...
  19. M

    anode to protect engine

    Ive been thinking about this.... In freshwater where corrosion of an aluminum intake might be minimum anyway, Why couldnt you install a magnesium anode pipe plug in the engine cooling system somewhere, like an unused hole on the intake crossover? Sure it may need replaced often (maybe not)...
  20. M

    aluminum intake

    Did a search but got mixed reviews. If raw water cooled, and only used in midwest freshwater lakes, will an aluminum intake like an Edelbrock Performer be ok without a coated water crossover? Seems like it shouldnt be a problem with water itself, I dont know if electrolysis or anythign else...
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