Guest Anonymous Posted November 21, 2001 Share Posted November 21, 2001 Hey everyone I'm working on timing my car right. Question. When your at top dead center, where should your timing mark be at in relation to the timing guide tab? should it be at the zero or what? just wondering. Thanks for the info. Sean Quote Link to comment Share on other sites More sharing options...
Guest RENN TURTON Posted November 21, 2001 Share Posted November 21, 2001 "0" Quote Link to comment Share on other sites More sharing options...
pparaska Posted November 21, 2001 Share Posted November 21, 2001 Renn, I was going to say that. But maybe he's asking about which degree markings he should line up when setting the ignition timing? Somewhere between 8 and 12 degrees Before Top Dead Center (BTDC), would be my answer. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 22, 2001 Share Posted November 22, 2001 Ok, that's what I was thinking about the zero part. So here's my next idea. I think I put the cam gear in wrong, since when I put the timing mark at zero and at tdc, the car won't start, move the timing mark around to the other side, and vrooom, vroooom. what about that logic? sean Quote Link to comment Share on other sites More sharing options...
pparaska Posted November 22, 2001 Share Posted November 22, 2001 Did you use one of those 3 keyway timing sets? It's easy to align the wrong marks that way. I did this once and the car ran like piss. But it should start. Maybe you have an early balancer and a late timing pointer? This changed at some point on the SBC. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 22, 2001 Share Posted November 22, 2001 It could be the distributor is out 180 deg? It won't fire, but will pop and shoot pretty fire out of the carb usually if thats the case. If a cam is out of time, it'll puke gas up through the carb (unless this is a EFI engine then this was all a dream and I didn't reply, its all a dream..) even a efi engine would probably be blowing air out of its throttle body if it was out of time at the cam. Just a observation. Regards, Lone Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 22, 2001 Share Posted November 22, 2001 the tab is for any 350 it says. The balancer is old yes, say about 78. I have put the distributed correct. It all runs, and runs good, just I can't time it with the timing light using the number one wire. I think I put the cam in slightly wrong, or possibly the sprocket. they only way I can get it to start is by putting the mark on the other side of the engine instead of the tabed side of the engine. sean Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 22, 2001 Share Posted November 22, 2001 sounds like your cam is 180 out but it shouldent run ...... mabey it was a mess up when they made the cam they might have marked it 180 out..... could happen? Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 23, 2001 Share Posted November 23, 2001 I believe that the balancer ring has slipped from the hub. It is a compression fit and this can happen. If you put the cam in wrong the car would not run if it is 180 out. Look at the balancer from the front and not the position of the TDC marking in relation to the crankshaft keyway. Then compare this to a balancer known to be correct. I will bet that the relationship is different and will verify a hub and ring slip. Quote Link to comment Share on other sites More sharing options...
pparaska Posted November 26, 2001 Share Posted November 26, 2001 To check TDC: Get a through-the-sparkplug-hole piston stop and VERY CAREFULLY use it to come to near TDC from both directions. Mark the balancer when the piston stops each direction. Half way between is TRUE TDC. That way you can see if the ring slipped or not. Nice call bubafett! Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted November 26, 2001 Share Posted November 26, 2001 FWIW Pete - I put a piston stop into my plug hole and wnet a full revolution without it hitting the piston Had it screwed all the way out too - ended up sending it back. Pretty weird... Quote Link to comment Share on other sites More sharing options...
pparaska Posted November 26, 2001 Share Posted November 26, 2001 Those must not work in some of the newer heads I guess. Showing my age... Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 26, 2001 Share Posted November 26, 2001 Yeah, Pete the valves are'nt in the block anymore... , Lone Quote Link to comment Share on other sites More sharing options...
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