TOPIC: 1968 Mercury 500

1968 Mercury 500 9 years 3 weeks ago #114920

cturboaddict Topic Author Offline Junior Boarder Posts: 71 Karma: 2 Thank you received: 0	Have a friend who bought a 68 Merc 500, and having trouble getting it firing. He has spark, fuel, compression. But can't get it to fire. What is the correct timing setting for the 68 Merc 500? And do they set the same as the bigger Inline 6s? (IE- Idle timing and WOT timing?) Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
	Please Log in or Create an account to join the conversation. 1972 Sidewinder 18\\\\\\\'SS in resto. New transom, stringers, deck, knee braces... 1976 Merc 1150... Rebuilding my original with help from the all elite Dr FrankenMerc!!!

Re: 1968 Mercury 500 9 years 3 weeks ago #114926

ggreggc Offline Junior Boarder Posts: 125 Karma: 9 Thank you received: 0	Thunderbolt ignition (I assume?) Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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Re:1968 Mercury 500 9 years 3 weeks ago #114941

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cturboaddict wrote:

Have a friend who bought a 68 Merc 500, and having trouble getting it firing.

He has spark, fuel, compression. But can't get it to fire.
What is the correct timing setting for the 68 Merc 500?
And do they set the same as the bigger Inline 6s? (IE- Idle timing and WOT timing?)

Cturbo, before you try and time it make sure the plug wires are going to the correct plugs. If it has spark, fuel and compression the spark must be at the wrong time.

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Remember, my opinion in no way diminishes your opinion, nor yours mine. Collectively, there is a middle ground that is \\\"correct\\\" for the reader balancing all the input.

Re:1968 Mercury 500 9 years 3 weeks ago #114949

gfgarland Offline Expert Boarder Posts: 363 Karma: 47 Thank you received: 3	Good possibility the flywheel was taken apart and put together wrong. Check the mark at TDC for number one piston to make sure that this was not done in error. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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Re:1968 Mercury 500 9 years 3 weeks ago #114950

cturboaddict Topic Author Offline Junior Boarder Posts: 71 Karma: 2 Thank you received: 0	THunderbolt, I would assume. It looks very similar to the inline 6s. Yes, the plugs are in correct orientation. Will check the TDC.... But does anyone know the idle timing and WOT timing? Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
	Please Log in or Create an account to join the conversation. 1972 Sidewinder 18\\\\\\\'SS in resto. New transom, stringers, deck, knee braces... 1976 Merc 1150... Rebuilding my original with help from the all elite Dr FrankenMerc!!!

Re:1968 Mercury 500 9 years 3 weeks ago #114952

dave bernard Offline Platinum Boarder Posts: 1470 Karma: 95 Thank you received: 30	put top cyl on top dead center then point the arrow of the mag pulley pointing directly at the crank that times the belt. WOT timing wont keep it from starting. don't know that timing off hand. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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Re:1968 Mercury 500 9 years 2 weeks ago #115025

gfgarland Offline Expert Boarder Posts: 363 Karma: 47 Thank you received: 3	make sure the belt pointer aims at the white mark on the flywheel edge, not the three dots. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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Re:1968 Mercury 500 9 years 2 weeks ago #115041

cturboaddict Topic Author Offline Junior Boarder Posts: 71 Karma: 2 Thank you received: 0	(FYI, this is a friend I'm trying to help via the phone) it starts, but his throttle/idle stop plate was off the motor when he got it. Looking for some baseline settings for guidance. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
	Please Log in or Create an account to join the conversation. 1972 Sidewinder 18\\\\\\\'SS in resto. New transom, stringers, deck, knee braces... 1976 Merc 1150... Rebuilding my original with help from the all elite Dr FrankenMerc!!!