Waterpump replacement
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
OK, whatever, something like that... but I saw the two dots lined up like that and noticed that's wrong but people sometimes offset the ignition distributor to deal with it, time the engine on whatever cylinder happens to be TDC on the compression stroke in that orientation.
Moderator
Joined: Jan 2001
Posts: 56,997
Likes: 2,744
From: Virginia
Not quite ... Getting the Distributor off just makes it not run so well if at all ... Getting a cam off could cause a piston/valve crash and the results can be ugly! 
He's not actually flipping the dots, he is just putting it back like it was, he could get lucky if nothing moved ... Personally, I would not take the chance, it's not worth the possible out come.
-Enjoy
fh : )_~
He's not actually flipping the dots, he is just putting it back like it was, he could get lucky if nothing moved ... Personally, I would not take the chance, it's not worth the possible out come.
-Enjoy
fh : )_~
If he turned the engine around with the old gears till the dots lined up like his picture, took the gears off without turning anything, and put the new gears back on without turning anything and the dots lined up like the old set, he will probably be ok.
If he turned the cam or the crank at any time after the old gears were taken off and before the new ones where installed, he might be in trouble.
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
I suspected it, just didn't want to allow him to crash it if zero clearance. Better safe than sorry!
So, knowing that, all he needed to do was ensure #1 at TDC, Roll the cam to face to face dots ...
Not that it matters now, but the next reader may like to know that!
-Enjoy
fh : )_~
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
The crank gear *must* make exactly two revolutions for one of the cam gear.
So, *every other* crank revolution is going to be tdc compression #1.
Count the teeth or measure the circumferences of your old timing gears and you will know how it works
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