faldecoa80 Posted November 18, 2014 Report Share Posted November 18, 2014 I new on this, and I want to timing my engine, how is the best way to find the TDC on the 1st Cylinder on a L16 engine? Quote Link to comment
Just Joel Posted November 19, 2014 Report Share Posted November 19, 2014 Pull the # one spark plug and look ;) Quote Link to comment
Ranman72 Posted November 19, 2014 Report Share Posted November 19, 2014 put your finger over #1 while cranking the engine by hand you want it top dead center on compression stroke which means it will blow air at your finger then line up the front pulley marks with TDC there are also multiple videos on line that will show you how Google is your friend http://video.search.yahoo.com/video/play?p=how+to+set+an+L16+on+top+dead+center&vid=a2f52a6115dd6c9ad734435c729a106d&l=4%3A34&turl=http%3A%2F%2Fts2.mm.bing.net%2Fth%3Fid%3DVN.608041101733793149%26pid%3D15.1&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Du2sA-q7_FtQ&tit=How+To+Find+TDC+The+%26%2339%3BEasy%26%2339%3B+Way+-EricTheCarGuy&c=5&sigr=11as640di&sigt=11lsnejsa&back=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dhow%2Bto%2Bset%2Ban%2BL16%2Bon%2Btop%2Bdead%2Bcenter%26ei%3DUTF-8%26fr%3Dcrmas&sigb=12n8i6soe&ct=p&age=253335563867&&tt=b http://video.search.yahoo.com/video/play;_ylt=A0SO8ynvOmxUeEcAcVBXNyoA;_ylu=X3oDMTBsOXB2YTRjBHNlYwNzYwRjb2xvA2dxMQR2dGlkAw--?p=how+to+set+an+L16+on+top+dead+center&tnr=21&vid=F7672CAD758A71A71A96F7672CAD758A71A71A96&l=748&turl=http%3A%2F%2Fts1.mm.bing.net%2Fth%3Fid%3DUN.608006638913719632%26pid%3D15.1&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DnWMm8bap_Q8&sigr=11aboj41b&tt=b&tit=Finding+Top+Dead+Center+%28TDC%29+Teaching+Lesson+-+Most+Engines%21&sigt=11tqmepmj&back=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dhow%2Bto%2Bset%2Ban%2BL16%2Bon%2Btop%2Bdead%2Bcenter%26ei%3DUTF-8%26fr%3Dcrmas&sigb=12n8i6soe 2 Quote Link to comment
faldecoa80 Posted November 19, 2014 Author Report Share Posted November 19, 2014 Pull the # one spark plug and look ;) very useful information!!! Quote Link to comment
Just Joel Posted November 19, 2014 Report Share Posted November 19, 2014 Wait... Sarcasm? I'm being serious... You can actually watch the #1 cylinder rise to TDC and align the timing mark. Quote Link to comment
faldecoa80 Posted November 19, 2014 Author Report Share Posted November 19, 2014 put your finger over #1 while cranking the engine by hand you want it top dead center on compression stroke which means it will blow air at your finger then line up the front pulley marks with TDC there are also multiple videos on line that will show you how Google is your friend http://video.search.yahoo.com/video/play?p=how+to+set+an+L16+on+top+dead+center&vid=a2f52a6115dd6c9ad734435c729a106d&l=4%3A34&turl=http%3A%2F%2Fts2.mm.bing.net%2Fth%3Fid%3DVN.608041101733793149%26pid%3D15.1&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Du2sA-q7_FtQ&tit=How+To+Find+TDC+The+%26%2339%3BEasy%26%2339%3B+Way+-EricTheCarGuy&c=5&sigr=11as640di&sigt=11lsnejsa&back=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dhow%2Bto%2Bset%2Ban%2BL16%2Bon%2Btop%2Bdead%2Bcenter%26ei%3DUTF-8%26fr%3Dcrmas&sigb=12n8i6soe&ct=p&age=253335563867&&tt=b http://video.search.yahoo.com/video/play;_ylt=A0SO8ynvOmxUeEcAcVBXNyoA;_ylu=X3oDMTBsOXB2YTRjBHNlYwNzYwRjb2xvA2dxMQR2dGlkAw--?p=how+to+set+an+L16+on+top+dead+center&tnr=21&vid=F7672CAD758A71A71A96F7672CAD758A71A71A96&l=748&turl=http%3A%2F%2Fts1.mm.bing.net%2Fth%3Fid%3DUN.608006638913719632%26pid%3D15.1&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DnWMm8bap_Q8&sigr=11aboj41b&tt=b&tit=Finding+Top+Dead+Center+%28TDC%29+Teaching+Lesson+-+Most+Engines%21&sigt=11tqmepmj&back=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dhow%2Bto%2Bset%2Ban%2BL16%2Bon%2Btop%2Bdead%2Bcenter%26ei%3DUTF-8%26fr%3Dcrmas&sigb=12n8i6soe Thanks!!!!! Quote Link to comment
edekalil Posted November 19, 2014 Report Share Posted November 19, 2014 Wait... Sarcasm? I'm being serious... You can actually watch the #1 cylinder rise to TDC and align the timing mark.This Quote Link to comment
faldecoa80 Posted November 19, 2014 Author Report Share Posted November 19, 2014 Wait... Sarcasm? I'm being serious... You can actually watch the #1 cylinder rise to TDC and align the timing mark. But the timing mark align two times, one is rigth one isn´t the TDC Quote Link to comment
Just Joel Posted November 19, 2014 Report Share Posted November 19, 2014 That's why you need to watch the actual piston rise on the compression stroke... 2 Quote Link to comment
Just Joel Posted November 19, 2014 Report Share Posted November 19, 2014 The other method described is identical but you are feeling this happen rather than watching. Quote Link to comment
banzai510(hainz) Posted November 19, 2014 Report Share Posted November 19, 2014 what I do is open the oil cap. when the lobe that is right there(intake)looking down is in the 9 oclock positio thn you know your on the comprestion stroke. then dial the crank up to the TDC mark to zero on timming pointer.the lobe will be close to the 10 o clock position pointing up and to the left. save this 1 Quote Link to comment
Just Joel Posted November 19, 2014 Report Share Posted November 19, 2014 Your #1 cylinder cam lobes should look like this when you have it right.... 2 Quote Link to comment
datzenmike Posted November 19, 2014 Report Share Posted November 19, 2014 But the timing mark align two times, one is rigth one isn´t the TDC That's why you need to watch the actual piston rise on the compression stroke... But it also rises on the exhaust stroke. Watching it rise up doesn't distinguish compression from exhaust, nor does the timing mark. As Joel says you have to be on the compression stroke first. To do this you can stick a finger in the plug hole and the compression will blow it out or look through the valve cover cap and see if both cam lobes are pointing at 10 and 2 oclock or take the valve cover off. If you know the timing is close take the distributor cap off and the rotor will be pointing close to the #1 plug wire on it. Two things.... Now look for the single notch on the crank pulley and bring it up to the ZERO on the timing scale. Some pulleys have 4 or 5 notches and a single timing pointer. For these type set the last notch, to one furthest counter clockwise, to the pointer, the other four marks are advance. 1 Quote Link to comment
DanielC Posted November 19, 2014 Report Share Posted November 19, 2014 This is a picture of a stock 1970 L-16 timing pointer, and pulley. This engine is about one degree before TDC. Notice the notch on the pulley the pointer is almost centered on is larger. That is the TDC notch. The notch to the left side of the big notch is 5 degrees AFTER TDC. The other notches to the right are 5, 10, 15, and 20 degrees BEFORE TDC. The engine rotates to the side of the pulley with the four notches. Like it was mentioned, this engine could be either just finishing the exhaust stroke, or the compression stroke. You have to look at the camshaft to be sure. If a valve on Number 1 cylinder is stuck open, or is burnt bad, you will have a harder time feeling compression with your thumb, or finger over the spark plug hole, and even on the exhaust stroke you can still feel some pressure on your thumb. So to Faldecoa80, I think the best way is to remove the valve cover, or look into the oil cap hole, and make sure the front two cam lobes are at the "10:00 and "2:00" position. Then check the position of the engine on the timing marks, and pulley. 1 Quote Link to comment
Just Joel Posted November 19, 2014 Report Share Posted November 19, 2014 Alright, should have mentioned the cam lobes in the first response... Sarcasm deserved, carry on :) I will add that there are quite a few different timing markers and crank pulley combos out there. Unless you're sure the set you have are accurate, I'd still pull plug one just to confirm TDC. You never know what a previous owner has done or "fixed" ;) 1 Quote Link to comment
faldecoa80 Posted November 19, 2014 Author Report Share Posted November 19, 2014 Thaks every one for the information!!!! I will do my best!!! Quote Link to comment
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