Timing Merc 1000

[Lion hunter]

I know that there are a thousand posts and info on timing, but I can't find one that that deals with my self inflicted problem. I have a 1968 (2320822) Merc 1000 i6. I ws new to outboards when I got the thing from my father and I began to replace all the coroded wiring. In the process I removed the flywheel by taking off the smal nuts on the top. I didn't put alot of thought into the fact that the timing marks are on it and I know that I put it back together not line up. So here's the question<br />1. Do I get a dial indicator, find #1 tdc and remove the timing wheel as I did before and line up correctly, ( and make sure to never take it apart that way again)? <br /><br />Is the timing mark on these engines the vertical line on the side of the wheel just above the ring gear or is it on top of the flywheel?<br /><br />This site is great for helping me fix my screwups

 

[Clams Canino]

Re: Timing Merc 1000

The mark outta be on the side of the flywheel. When # is at TDC (a pencil will do in this case) ONE of the marks of the flywheel outta align with the pointer.<br /><br />-W

 

[Lion hunter]

Re: Timing Merc 1000

Thanks Clams, Everything worked out great. Timing was right on. I even got around to doing a compression test (120,125,130,125,120,125). She's running like a sewing machine now.

 

[MortenH]

Re: Timing Merc 1000

A little question - I have done the same trick, and I read in the book that when #1 is on tdc, the 0 mark on the flyweel shall be aligned to the pointer. Is this correct, or will any mark do?<br />My powerhead (115 HP i6 from 1984) is in several parts spread on my work bench, awaiting bearings and piston from the US of A, so I am not able to see it now.<br /><br />-M-

 

[Lion hunter]

Re: Timing Merc 1000

I don't know if mine is the same as yours, but what I did was.<br /><br />1. Find #1 TDC<br />2. There are 3 timing marks on the side of the flywheel. From left to right they are: 2 dots, then a vertical line, then 1 dot. <br />3. Remove the pulley cover from the distributor.<br />4. At TDC the arrow should be pointing inward at the vertical line. If this is correct you at least have correct flywheel position. Then set timing as per manual. <br /><br />P.S. The vertical line was just used to align the distributor w/ flywheel and TDC. The 2 dots were used to time it of the cowl.

 

[MortenH]

Re: Timing Merc 1000

Thanks. My flyweel is a little different. I have several marks, some with numbers and one clearly marked with a 0 (zero).<br />I guess I stick with the theory from the book - try to get the TDC on #1 as close to the zero mark as possible.