89 contessa 2850 timing

lilmandavis

lilmandavis

Chief Petty Officer
Joined
Mar 9, 2006
Messages
618
does anyone know what the timing specs are for a 89 bayliner contessa with the 460 in it? i just rebuilt the engine and its over heating and really hard to start. ive been from o degrees all the way up to 30 but still gets hot <br />i just bought a new dual points distrubutor to go in it as well any input would greatly help. i have a new impeller as well
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: 89 contessa 2850 timing

Don't know of any "Marine" dual point distributors, so would suggest you go back to a marine unit before you blow yourself up. The marine distributors have screen vents in them and approved for use in boat.<br /><br />As far as timing, it's supposed to be 10° BTDC, be carefull on the 460's, they have marks for BTDC and ATDC, if you are on the wrong side, you are WAY off.
 
Boatin Bob

Boatin Bob

Lieutenant Commander
Joined
Sep 24, 2001
Messages
1,858
Re: 89 contessa 2850 timing

I have a pair of 89 460's in my 35 Thundercraft, have always set them for 10 deg, in the last 10 years the only heating/cooling issue has been, takes too long to warm up and both cases it was a stuck open t-stat.
 
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