TDC marks on #2 cylinder?
I am sure as heck no mechanic. Just curious enough to kill a mess of cats.
I have a '52 8N which has had a rebuilt block put in near 4 years ago. Lately it's started running poorly, and I've started messing about trying to get it right again. All new tune up components, clean the air intake, etc.
Well, the thing won't run right, it'll start and idle real nice at low rpm (500-600), but as soon as I tried to pick up the rpm it stutters and dies.
I start poking around with the timing. Loosening the cap screw and turning the distributor back and forth didn't make any difference in the running at all. So I took out the spark plugs, took off the distributor, and loosened the cover over the flywheel timing marks window. I cranked over the engine with my finger over the #1 spark plug hole, feeling for the compression stroke and trying to find the timing marks, couldn't find them. So just for giggles, I tried using the #2 piston and guess what? There they are.
So the questions are...
1) Aren't those marks supposed to appear in the window when #1 comes up on the compression stroke?
2) How, using your thumb, can you tell compression from the exhaust stroke?
3) Since there are allegedly timing marks 180 d apart, how do us tinkerers tell if we're on the right set of marks (flywheel rotates half as often as the crankshaft so
both count as TDC?)
4) Why are those marks coming up on the #2 piston?
I sure could use a hand with this, so thanks up front!