Recommended engine idle when in gear and afloat?

[Kevoz]

Have searched to no end for the correct engine idle for my engine, 87-88-4.3 Mercruiser with Rochester 4BBL carb...it only says to warm engine up @ 1500 rpm and then adjust to recommended rpm...I looked for the 2BBL version and it says 600-700rpm, but I just need to have the forum's savvy experts make me a believer...any thoughts or suggestions?
Taking the newly recommissioned money pit out for a splash tomorrow afternoon, WooHoo! My job here is done!

cheers,
Kevo

 

[Bondo]

Re: Recommended engine idle when in gear and afloat?

and it says 600-700rpm,

Ayuh,... Same #s...

 

[Don S]

Re: Recommended engine idle when in gear and afloat?

You should have looked in the OEM service manual. would have saved you a lot of searching. The LX model was the one using the 4bbl carb, doesn't really matter, the idle speed is the same for 2 bbl and 4bbl.

 

[a70eliminator]

Re: Recommended engine idle when in gear and afloat?

Yes 650-700 in forward gear.. they don't tell you this but that is with the drive submerged and not on muffs right?

 

[NHGuy]

Re: Recommended engine idle when in gear and afloat?

Yup 650. Have a great dunk, stay near help til you trust her though!

 

[Kevoz]

Re: Recommended engine idle when in gear and afloat?

Thanks for the reaffirmation on the idle speeds, friends....I will be on a small lake and I have 2 long paddles and a tow rope, just in case, I took it out with a cracked block and had a great little 30min ride till she started puking oily slop out every imaginable orifice, lol...drove her back to the ramp with zero troubles, well except for the bad engine, haha...
cheers,
Kevo

 

[cannonford57]

Re: Recommended engine idle when in gear and afloat?

kevoz,the don has spoken........nuff said...