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Recent content by mike.l

  1. M

    Engine block differences

    Hi I have a marine 4.3 block from 1990 block casting number is #10105867 which is cracked i found a chevy truck 1990 s 10 the block number in that is not the same (Chevy did a lot of tinkering with the 4.3 around that time) its #is 1017 2756. Do we have a guru on the forum that...
  2. M

    Hi i have question that i am sure the guru on here will know the answer to

    Hi Saw a add on face book for a larson boat quite new had a 4.3 v 6 engine driving a jet drive my question is could i remove the broken jet drive and install a regular mercruser outdrive or is it just not possible to perform such a feat thanks mike
  3. M

    engine for boat help please

    Hi i am looking for a little help i have a 2001 boat with a 4 cyl engine 3 litre engine which is finished beyond repair and needs to be replaced. Its a gm based industrial engine, i have been offered a mercury 3.7 engine from someone after doing a goggle search on this engine its...
  4. M

    First time to try boat

    Today i finally got to put my 4.3 v 6 new rebuild engine on the water we have had it running with the hose and all goes well starts and runs also idles down fine goes into gear and reverse all systems seem to work put it into the lake today went out through the harbor just ran fine...
  5. M

    Installing the outdrive

    Hi started to install the out-drive its a alpha gen 2 1999 year . i am a little puzzled when the speedometer tube passe through the gimble bearing. There is no form of seal of any description. The tube just passes through the hole and then on to a simple plastic connection if water goes...
  6. M

    Help for mike on engine block please

    Hi i started a thread on 4.3 with cracked block and got some great help. My engine casting #is 14099090 i have found a block {a complete engine from a 1999 truck the #is 14099090m what does the m stand for marine or metric need some help here mike ( did not think US built anything metric)
  7. M

    1999 4.3 with cracked block or head

    Hi I have just purchased a 18 ft larson with a 4.3 mercury engine. Stern drive is in excellent condition, engine is in a sorry state i would like to remove the engine to work on it through the winter. How to attack this is just a little unsure i will need to purchase a workshop manual that...
  8. M

    Power trim tilt replacement motor

    Hi first post on here I have a 80 hp mercury outboard motor 3 cyl 1987 vintage the power trim tilt motor went out on it so i purchased a tilt trim motor from e bay with new replacement solenoids which were all pre wired connected all up as per instructions then my problems started...
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