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    PCM Rebuild & Info

    I'm about to rebuild an engine I have never rebuilt before and could use a little guidance. It's approximately an 1988... I didn't see any serial tags anywhere, but I did find the Ford block casting number on the starboard side under the block which reads " D9AE-6015-ED-1". Also the bolts to the...
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    Removing engine from a velvet drive

    All the serial tags are missing on both the engine (351) and the Velvet Drive so it's hard for me to give exact details...maybe I'll have to post some pictures. Anyways, all I need to do is pull the motor and replace the rear main seals, but I am wondering if this can be done without removing...
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    3.7L 180 Parts and Information

    Hey there. I have a new boat project, it's a 35' Searay with dual Merc 3.7L 180's Serial# B730773. I'm having a hard time finding a few parts locally, but I believe if I am not mistaken that the head, connecting rods, pistons, and flywheel are from the Ford 460. Is this true and does this mean I...
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    4.3GS PWTR Raw Water Flow Question

    99' 4.3GS PWTR On the muffs with the water turned up to higher pressure than I'd normally run it at and outdrive in the down position I see no to little water coming to the inlet side of the raw water pump which I have disconnected from the pump itself. So somewhere between the inlet of the...
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    New long block 4.3 GS PWTR

    Have a cracked block.... I'm gonna go ahead and assume that the heads are also cracked as they most always are so I'm looking for a long block. Here is all the info for the block: 98' vortec Volvo Penta 4.3 GS PWTR 4110186634 3868942 My question are what years can I look for to match this...
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    06' Seadoo GTI Clacking Noise while cranking

    I'm working on this 06' Seadoo GTI, it's throwing a p0344 code which I believe is a cam phase code. Anyone come across this specifically before? Here is a video so you can see it yourself. Thanks for any help.
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    Scan Tool for Shop

    Hey guys. So I was considering purchasing the Mercruiser Scan tool but I wanted to get some input on what I should or shouldn't buy. Basically I am tired of the hunt and poke method of trying to find problems and I'm ready to step into big boy pants. I need to get the best overall scanner that...
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    ultrasonic parts cleaner

    Hey Guys! I bought a Harbor Freight ultrasonic parts cleaner, specifically for carbs, but I need to find a bigger one without throwing thousands at it. I do enough of them I don't mind spending the $ but a few grand is just not practical for me at the moment. Does anyone have one they like and...
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    Only getting oil out of one push rod.

    I have this 5.7L I've been working on for a few months now, fresh rebuild, I've ran a few tanks of gas through it now but it wasn't performing like I thought it should and it developed what sounds like a valve tick. Also....ever since the rebuild I haven't been getting any oil pressure on the...
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    Upper steering swivel replacement

    Mercruiser 454 MAG Bravo Stern Serial# 0C658844 Hi friends. Helping a buddy fix his boat, it started binding up on the steering last trip out. Brought it over and noticed it had a lot of play in the outdrive so I pulled it thinking it was the gimbal...not the case. The bearing seems fine but...
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    plugs, wires, and oil filter 120hp

    Mercruiser 120 hp Serial# 6229797 Can someone tell me what the "autozone equivalent" plugs, wires, and oil filter? I don't believe GM ever used this lil' 153 block in any automotive application but I'd assume someone here would know which wires and filter I can use....I guess I can look up...
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    00' Seadoo GTX Limited Info Center Won't Turn Off

    Hey guys. I got this 00' Seadoo GTX with an always on info center, even with the dess key off the machine. Someone had run a switch coming off the batt initially to try to eliminate this problem, kind of like a perco switch, but all it did was cause it not to start. So I bypassed that switch so...
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    Basic Maintenance/Shop manual

    Hey guys. Just got a couple of new machines and want to make sure I am treating them correctly. I have alot more info for the Seadoo than I do the Honda. I don't want to cut any corners on these....jetpump oil replacement if applicable, oil, fuel filters...what's recommended?. The seadoo is...
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    Adding in electric choke and fuel pump

    So I'm just about finished with my rebuild. I have a 1979 260 5.7L 350ci serial #5424302. I changed out the block to a four bolt main and one piece rear main seal, it's bored .060 over and has deep dish pistons. It's the one piece rear main so I had to change out the flywheel, engine coupler...
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    Rebuild Break In Procedure Questions

    Just looking to get a feel for what the experts are saying about how a motor should be broke in after a bearings and rings rebuild. What I am reading is 20 min @ apprx 1500 rpm, zinc additive to the oil (not sure what folks are recommending specifically though), and then basically a rinse and...
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    Complete rebuild roadblock.

    So I bought this boat with a cracked block and cracked heads. The cracked block is 5.7L Merc 0K001527. I had another 350 longblock sitting here so I took it to the machine shop, had it bored .060, grind and balanced the crank, new cam bearings, new main bearings, new rod bearings, new .060...
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    5.7L 350 ci Heads and intake matching

    Cracked heads and block. MCM 5.7 Litre Serial #0K104547 2BBL MercCarb ThunderBolt V The cast # on the heads is 14096217. Are these heads "vortec"? From what I found these were just crate motor heads. I didn't think that they were but they do have the center valve cover bolt holes which I...
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    470 Small transom bracket

    I have a boat without a motor, supposedly it used to have a either a 470 or 170 in it but that is just hearsay. What I do know is that the transom bracket is narrower than what I am used to seeing. I found a pretty nice 3.0L I'd like to put in it but the flywheel plate measures 15" apart vs...
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    Ignition Issues 4.3L Thunderbolt IV

    1990 MCM 4.3L Serial #C874052 Not starting, not even getting a good backfire. 12v at coil +, 12v at wh/red from ignition amplifier, pulled #1 plug and grounded to block....gets a pretty good spark maybe not as bright blue as I would like but who cares what I like. Distributor (thunderbolt...
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    1990 4.3L ignition module

    4.3L (2 BBL.) GM 262 V-6 1988-1992 Serial # 0B773248 Hey Guys.... This has the Thunderbolt IV distributor, I just got a new ignition module I just want to make sure I have it all hooked up correctly. This is what I've got: FROM IGNITION MODULE WH/R --> WH/R Distributor Sensor WH/G --> WH/G...
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