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  1. D

    4.3L Thunderbolt V Ignition

    EST has a module too, its just inside the distributor. Really no upgrade between the two systems both are equally high quality OEM systems.
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    4.3L Thunderbolt V Ignition

    I have a Electrical Systems (wiring Diagrams) manual 4D which shows the various configurations by engine type, PM me an email if you want it I can share it electronically. The trick is actually being able to find a module used or new. I agree 100% the TB is an excellent system. When I did my...
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    4.3L Thunderbolt V Ignition

    I believe the TB V knock or no knock sensor is more determined by what engine it is on. Seems like even with the latest TBV modules the base 4.3 and 5.0 2 bbls I have never seen with a knock module. Seems like more so they come on higher hp 5.7s I am pissed at MErc for how many TBV modules are...
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    4.3L Thunderbolt V Ignition

    Usually you can find them on eBay used, but as more icms have become NLA that is getting harder to find. Green Bay prop used to list a lot of used parts not sure if they can help. If all else fails a delco est is a common replacement and is relatively drop in with minor wiring changes. The...
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    Remanufactured Long Block

    GM stopped making the 5.0 a few years back making it somewhat harder to find. A 5.7 is a common upgrade but with an mpi you will need to reflash the ecu for the 5.7 fuel mapping. Michigan motorz can help you either with rebuilt 5.0 or walk you through upgrading to a 5.7. You will have zero...
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    cool fuel III interesting problem

    if I recall there is no real way to see that in the boat beacuse of the way they are mounted ?
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    Gear shimming

    excellent, I have found them super helpful
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    Gear shimming

    Do you have manual #14 which is for the alpha gen 2 outdrives? It has all of this laid out and the procedure for doing the shimming. Would recomend getting one if you dont have it. I think I paid less than $50 on ebay for a lightly used copy
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    1971 Larson GM 250 Inline 6 165 HP

    Late ignition timing can cause over heating so for sure verify it is not retarded. If you exhaust was that clogged up willing to bet the block is too
  10. D

    Mercruser outdrive

    you are missing the e clip on the upper end of the lift cylinder nearest the camera. as others have sent gen 2
  11. D

    MC1 Trim Fluid

    A jack oil will be fine. I bought ISO (I think) 32 jack oil at the local auto parts store works great for me, you can also use dexron 3 as well just dont mix different fluids
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    Mercruiser 350 1987 - Distributor questions IMAGES

    these guy ship intl I think https://michiganmotorz.com/est-v8-distributor-with-module/
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    Alpha One Gen2 Grinding Noise at extreme turns

    yeah the Mercs are like $270 each . I used spicer equivalents two years ago, I have some vibration but I think my alignment is off, so I need to pull my drive and check. Getting weird shudder when I trim in under load. I was asking as I was thinking if the ujoints didnt hold up I would use OEM...
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    1990 4.3 mercruiser - power steering leak at cooler.

    about ten years ago I got rid of our 1991 Sea Ray 170, was too small as the kids (and their friends) got bigger. Had that boat for 20 years, was a good time to get out as the interior was starting to need redone. Was a great inexpensive boat to own- but was not worth it (new upholstery) on a too...
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    1990 4.3 mercruiser - power steering leak at cooler.

    i do it the same way (in upstate NY), use a gallon of AF to push back from thermostat hsg and out the OD. use the rest to chase any small pockets of water. Doing it this way for decades with zero freeze damage. my 2004 boat has a drain plug in the middle of the big U shaped hose between circ...
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    Alpha One Gen2 Grinding Noise at extreme turns

    thanks for following up - when you say quality parts do you mind sharing the brand of cheap u joint that made the noise (was that sierra?) and what parts you put in?
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    95 sea ray 175 seems to have no go in the water

    Start with some basics do a compression test first, verify timing, what do spark,plugs look like? Is this a new to you boat or did it run correctly at one point?
  18. D

    siphoning bad gas

    Ground the pump to the negative side of the battery. For flammable liquids in industrial applications the jugs with be set up to ground with a grounding lug, which you will not have. I wouldn’t worry about it too much unless you are using an electric pump. Using a hand vacuum extractor and...
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    Are my props causing all my problems?

    Yes b have to take a plug out to hook up a vacuum gauge, marine applications don’t use vacuum advance or other vacuum powered accessories so typically no hook ups
  20. D

    MerCruiser 5.0 engine

    i mean were all of those cylinders having bent avlaves. Most likely your exhaust is leaking back and rusting the stems but hard to tell with the limited info given. If running lean the valves can tulip and stretch the stem too that might be inferred as bent
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