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  1. vroom ZOOM

    A motor question on Cristmas day uggh

    I'd fill the holes with some kind of epoxy mixed with fumed silica.
  2. vroom ZOOM

    Low Fuel Pressure 2005 Mercruiser 4.3L MPI

    Hang on, just checked your serial number and it seems that you do not have a LP pump, sorry for the mistake. Most of these do so I blindly assumed you have one. I stand corrected. But still do the clear hose test on the return from the HP pump and the clear hose test from the tank to check for...
  3. vroom ZOOM

    Low Fuel Pressure 2005 Mercruiser 4.3L MPI

    Ugh, you need to do some proper diagnostics to find out what is going on. Don't be a parts cannon (otherwise your dealer parts guy will love you). Here is a little procedure you can follow, I hope it helps: Disconnect the dump line from the cool fuel module at the filter housing. Throw a chunk...
  4. vroom ZOOM

    350 mpi rebuild questions

    Anyways, one down. Still a couple of hoses left to connect when I get the manifolds, but the motor is otherwise complete. Now for the second motor!
  5. vroom ZOOM

    350 mpi rebuild questions

    gotta be careful as play sand will create nasty silica dust in the blasting cabinet. Usually I use crushed glass that is specially made for blasting and doesn't create silica dust.
  6. vroom ZOOM

    Axius Gen 1 Removal

    Well, I will chime in here with my 2c. The thing is, finding parts for gen 1 axius is stupid difficult (I tried, most parts are NLA). However, if parts are needed, I heard that you can install the newer style actuator and reprogram the TVM to slow the new actuator down to the gen 1 speed (will...
  7. vroom ZOOM

    350 mpi rebuild questions

    Well, you internet warriors have convinced me to grab that stainless head gaskets. Got the marine 17030 felpro gaskets for 29 bucks each, so not too bad. Non marine were 15 bucks but its not too bad of a price diff. Picked up new crab caps and belts while I was at it. Hopefully I can get the...
  8. vroom ZOOM

    350 mpi rebuild questions

    Well, I tried communicating to the cooked ECM through K-TAG, but no luck, I think its really toasted. I guess I will keep it around for spare parts. On the positive side, I bought a whole box of 350 mpi ECMs with some good ones to use and some bad ones to tinker with. When digging through them...
  9. vroom ZOOM

    to replace the transom or not?

    Last one took me about 3 or 4 days to do, I could probably do this one in 7 or so, its just that ripping the old wood out is a PITA. I don't really mind grinding or glassing, its getting the old wood out from behind the stringers. Anyways, looks like its time to start cutting.
  10. vroom ZOOM

    to replace the transom or not?

    Hello, while doing an engine swap and engine room repaint on my boat, my attention was brought to some VERY shoddy workmanship on the factory layup. A lot of the area on the transom had a bunch of gelcoat just rolled onto the wood without any glass, and of course if has cracked and peeled. I of...
  11. vroom ZOOM

    Bravo 3 bearing shims

    Well, I took some pictures just so everyone can make sure I am looking in the right place... Also I think this bearing race is shot
  12. vroom ZOOM

    Bravo 3 bearing shims

    I will look closer... Serial number is worn off a while ago, but I do know it uses the later thickness washers and the four piece bearing without the spacer on the input shaft.
  13. vroom ZOOM

    Bravo 3 bearing shims

    Hello everyone, Been rebuilding my bravo 3 upper after water got in and pitted some of the bearings. Luckily the gears survived it seems. Most of the bearings were easy to source, but the thrust bearing washers are confusing (parts 7 and 11) Mercruiser says that the bearing race thickness...
  14. vroom ZOOM

    350 mpi rebuild questions

    Well, it seems like I am going down the rabbit hole of DIY. I have a partially burned ECM555 from an engine that caught fire. I cant really sell it because the plastic connector is a little charred, but it otherwise looked intact. I surely am not going to throw it out. You know what that...
  15. vroom ZOOM

    350 mpi rebuild questions

    Well, I still havent got the block from the machine shop yet, but I am trying to figure out the closed cooling situation. Does anyone know the difference between the closed and open cooling version of the ECM? Any harm if I throw a RWC ECM on a FWC motor?
  16. vroom ZOOM

    350 mpi rebuild questions

    Well at this point someone mentioned that a steel shim gasket will leak and I then said to hell with the quench. To make matters worse, most marine head gaskets are 0.039. I went ahead and got flattop pistons 1.548 high and that gives my 9.4 compression with a marine head gasket. If it ends up...
  17. vroom ZOOM

    Wake boat fuel supply issues

    After some googling I figured out what the big fitting is, apparently its a tank vent valve (TVV). Also found this little diagram online and the setup I am dealing with might be sort of similar with the addition of two more vent lines and a return line from the engine. I think the two...
  18. vroom ZOOM

    Wake boat fuel supply issues

    Hi everyone This thing is driving me nuts. its a 2015 gekko revo. The pump is sucking air in somewhere. I put a clear chunk of line from the tank pickup with a gauge and it pulled about 5 inches of vacuum and it looked like a bunch of air was coming in as well. I unscrewed the pickup from the...
  19. vroom ZOOM

    350 mpi rebuild questions

    0.051-0.053
  20. vroom ZOOM

    350 mpi rebuild questions

    I wish I could... That is what I am trying to do. The thing is I am having a hard time finding pistons that replicate the stock ones. Either they are too short, the dish is too big or too small or they cost an arm and a leg.
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