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    350 engine replacement options

    Good day My buddy got his boat ready to go for the season and was greeted with a cracked block. Something went wrong with his winterization. It is a 89 305 with center valve cover bolts so my assumption at this point is a single rear main seal motor. Not sure if these had roller cams in them...
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    Part floor repair opinions

    Good day I have an older 1988 Mirage and am having the interior done in it. After removing the rear seat and starting to clean up under it I found an issue once I removed the small square fuel sender access cover. I do not have any pictures but at the very rear of the floor before where it...
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    Mercruiser Laynard help

    Good day I am replacing my aging switches and related equipment. I have an older 1988 twin 350 mag set up and the laynards are bypassed. I ordered a couple new ones and went to replace but the ones I managed to get are closed for engine kill while the original ones were open which cut the...
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    Trim pump question

    I have my trim pump motor out as it would work only after tapping on it, all the solenoids check out fine. I am figuring the brushes need to be replaced. Is there anything else that may cause this or should I be good if I tear it down clean up the armature and replace the brushes and springs...
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    New power steering help needed

    Okay so an update to my power steering woes. The transom resevoir bottle is 300.00, and if the priority valve is shot they are NLA. So it looks like I am going to go with running 1 pump. The dealer told me that the new twins are running one pump but the other engine still has a pump on it doing...
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    House Batt wiring

    Does anyone have an example of a house battery wired in with twin engines and twin Batts to a total of 3 Batts with a Batt selector switch? Thanks
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    Yet another dual Batt question

    Okay I haev my new to me boat in the water and am trying to figure out this battery wiring the last owner had going on. I have had dual Batts to a single motor which is pretty straight forward. This has twin engines as well yet he is running 2 batts and 1 batt selector switch and as I side note...
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    Power steering help

    Hi all I finally got this new to me boat in the water for a couple runs. Working through lots of little problems now for the next one. This is my first boat equiped with power steering. 1988 Merc twin 350 mags on alpha 1. Not sure if someone has changed things but it sure does not match the...
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    T stat and gauge question

    Hi all I have a new used boat I have been going through to get ready to go. 88 Merc 350 mag with alpha drive. I ran both engines on muffs and the left heated up and stabilized the right read cold with no temp rise mind you the motor felt warmed up and so did the water exiting. Long story...
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    Merccathode questions

    I posted this over in the outdrive engine area but reall got no responses so I thought it might go better here. Okay I have a new to me Mirage with twins 1988. It is equiped with 2 merccathode units on it and I have no experiance with them other than they are used to stop outdrive corrosion...
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    Merccathode questions

    Okay I have a new to me Mirage with twins 1988. It is equiped with 2 merccathode units on it and I have no experiance with them other than they are used to stop outdrive corrosion similiar, I assume, to zinks other than a zinc is just a sacraficial metal so the aluminum does not corrode. I was...
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    Engine compartment vents

    Hi all I have a new to me 88 Mirage and I replaced 1 of the 2 blowers and was doing some vent line replacement. I noticed that the boat has 1 pair of vents per side, 4 individual vents in total. All the vents face forward, ie force air into the compartment when running. My prior boats have...
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    Another alignment problem

    Hi all Well had a very frustrating day to say the least. I have done some searching and while I find similiar syptoms I do not see a return post to determine the soution. I have my new boat to me 1988, twin 350, Alpha 1 drives. I have been going through it getting it back into shape. Pulled...
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    5.7 merc questions

    Good day all So I managed to finally go pick up my new to me beast and start going through it. I have a few questions on some items. It is a 1988 5.7 mercruiser mag, alpha 1 drive. The port engine has an intermitent starter I hear the click of either the slave sol or the starter sol and...
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    No bottom paint options

    Hi all Well I am picking up my new to me boat shortly and I had the use of my fathers boat house wilt a lift but have been recently informed he is in the process of selling his home and moving back into town. Seems about right with my luck so now my best option is to slip it for the season...
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    GPS opinions

    Hi all I have done some searching and do not seem to be able to come up with models that may suit what I am looking for. I am looking for a GPS, with chart overlay, does not have to be real fancy, depth reading, don't care about fish finding, with your normal speed, anchor alarm, shallow...
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    Newb questions

    Hi all I have picked up a boat for the up coming season and woudl not mind trying some wake boarding. I plan on looking for a used cheap start board for a range of familly members. The range is from a 13 yr old girl small and light, girlfriend short and light, boy 160 lbs and myself over 6...
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    New guy questions

    Hi all New to the forum and soon to be new boat owner. I have owned and worked on quite a few in the past but it has been a while. The last one being an older MR I/O if I rememeber. I have picked up an older 1988 boat pretty decent with the intent to put a little work into it. (famous last...
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