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    Prop security...anyone heard of PROTECTAPELLER

    hi guys as per the title really - has anyone heard of - or indeed bought an anti-theft casing for a prop made by/called Protectapeller google reveals that they were reviewed by YBW magazine in 2001 - but they want money for the review thought i would check out 'real' reviews on here first...
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    Prop Change Questions............please

    Info 1972 mercruiser 120 GM in line 4 and pre-alpha leg. Hi Guys some advice please - i am going to put a new prop on my pre alpha leg. i have got the method stright in my head. but a couple of tips and tricks would be appreciated please. 1) how do you guys stop the prop turning to undo...
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    1984 Mercury BlackMax 200 oil mix?

    Hi guys should a 1984 mercury 200 black max be oil injected? if so where would the tank be? and is it the plastic gear/cog type? if not - or if (like i suspect) it should but mine has been removed - what should the fuel/oil ratio be please? cheers guys adam
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    200hp Black Max - Trim Wiring help please

    Hi guys - i have a newly acquired 200hp merc 1984 black max the boat has come with new mercury controls - so i want to change the tilt trim wiring to the swith on the new lever. so the question is please - out of the current dash switch i have the red, blue, green and purple wires - as you...
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    New to outboards - any de-winterising tips please

    Hi guys i have just bought a Ring 18 powerboat with a black max 200 mercury outboard. its been in a barn for a couple of years - so nice and dry and just very dusty. are the 200hp mercurys any good? any know faults or tips guys please? and on a "better safe than sorry" tack, what do i need...
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    Dielectric grease - What is it....?

    hi guys just going through the boat cleaning up and freshening up all earthing points and connections in general. i have read posts saying once the areas are sanded back and clean - put some dielectric grease on to avoid corrosion recurring. i am in the uk and nobody i have asked at various...
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    Fine tuning advice please :)

    Info - 1972 mercruiser 120hp GM in line 4, pre-alpha leg. Hi guys thanks to all excellent advice on here during the last few weeks whilst i have been rebuilding my boats engine. Nearly there. Currently the timing is spot on, the idle is smooth, the power is all there. BUT.. I must have a...
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    Are my Plug leads finished?

    Hi guys have you any idea about the following symptoms please - I am starting to pull my hair out and i'm stumped :) Ok info - mercruiser 120 GM in line 4 - 1972 - standard ignition (plugs/points/condensor) I bought the boat about 6 weeks ago, and the engine was good, but occasional hiccup...
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    Sparkplug Type Required Please.... :)

    Hi guys just a quickie - engine info - 1972 GM In Line 4 120hp - Serial Number 3254358 The manual (clymer) calls for AC CR44N2 - and having searched for an equivalent I have come up with NGK BR6ES The ones in it are NGK BPR6ES - which have a protruding end - Any advice appreciated please...
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    Springs on mechanical advance ..... different?

    Hi guys I am getting close to solving my issue with my timing problem. Info - 1972 Mercruiser 120 - GM in line 4 with pre-alpha leg. If you check my other threads you will see that i have had an issue with the timing advance. With pot 1 at TDC (compression stroke) the timing mark on the...
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    what to soak carb in?

    hi guys what solvent do you lot use to soak the carb in? over here i can only find a spray - that is good but really want a litre of something to submerge it all in over night cheers adam :)
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    Mercruiser 120 - timing/dwell/carb conundrum please...

    Hi guys Info = 1972 Mercruiser 120 GM in Line 4 - same year Pre Alpha leg. Rochester 2bbl carb. The story so far guys - hope someone can help please. I bought the boat 4 weeks ago. Used on the river - runs quite nicely - but tended to miss and surge a bit - so i suspected ignition service...
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    Tacho earthing - - - coil question?

    Hi guys I'm trying to get my head round why the wire between the coil '-'ve and the tachograph earthing out cause a no spark situation please? cheers adam
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    Shift Interlock Switch - advice please.

    Hi all Info:- 1972 Mercruiser GM 120 I/Line 4 with Pre Alpha Leg Can anybody tell me how to set/adjust the shift interlock swith on the inner housing please. It is operational - but doesn't seem to dip the coil at the right time. ie it goes into gear and engages forward and will potter along...
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    Just a quickie - points dwell angle Merc 120

    Hi again guys Info: 1972 Mercruiser 120, GM In Line 4. Getting a dwell meter tomorrow to set the points up correctly. I've got the Clymer manual for my setup - and as usual its quite vague with details and procedures - thank heavens for iBoats :D Ok the question is this - when they (Clymer)...
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    Finding TDC on number 1....advice please..merc 120

    Hi all Engine details:- 1972, Mercruiser 120, GM in Line 4. story so far....i have established that the balancer has slipped slightly and the timing notch is now miles out from the timing mark range on the block. if i get the mark anywhere near retarded enough to the 6 deg btdc mark with the...
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    Mercruiser 120 cooling question........ any help appreciated please

    Hi all has anybody got any tips on how to confirm the water cooling system is working efficiently please? 1972 Mercruiser 120 with pre-alpha leg. i know it sounds like a dumb question - but i would love to be able to visually/physically check i have a good flow (raw water cooling system) - and...
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    Can Lead additive affect/alter engine timing?

    Hi again guys, has anyone ver heard of engine timing being affected by adding too much lead additive to the petrol? it was running really nicely - now i've over done the additive a bit and its pinking, missing, bogging etc. i am going to add more fuel to dilute to the correct ratio (i know...
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    Trim question please - pre-alpha 1972 leg.

    Hi again :) I have posted a questione re oil up in the armature of my trim motor. Any advice on that would be greatly appreciated. As a follow-on issue. The trim pump is obviously not working until i can get it rebuilt/serviced etc. My question is - if i reinstall the pump, and all hydraulic...
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    Pre Alpha Tilt Pump - Oil up in motor on armature.

    Hi guys I have stripped down the trim/tilt motor - to find the armature is covered in oil. I have checked the manual to find the troubleshoot solution - and under the problem 'Oil in Motor' the solution/diagnosis is 'Vent Screw Closed' New to Mercs - and trim pumps in general - but surely the...
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