Cam timing is what determines when the valves open and close with respect to the position of the pistons in their bores. It is set when the engine is built- by placing the camshaft and crankshaft in the correct relationship. It cannot be adjusted on a stock engine. Overheating, lack of power, pinging. Most modern ignition systems have some sort of electronic advance built in, so the timing changes with rpm. If the timing is too far off the ignition will still produce a spark but the engine won't start. But that only happens if something is seriously twisted or the flywheel key is sheared. Trying to diagnose if my cam timing is off on my GL650. Purchased the bike last fall. Had bubbles in the radiator and diagnosed a failed head gasket. Replaced bad gasket. Bubbles gone but engine still runs on the hot side compared to my GL500 and two other 650's I have ridden. Engine vibrates... Apr 04, 2019 · I'm consistently throwing code 16396 - Bank 1: Camshaft A (Intake): Advance Setpoint not Reached (Over-Retarded) My research points to a bad tensioner for the cam chain. But beyond that I'm finding a lot of conflicting info that I'm hoping you gurus can help me sort out. It's been at least a few weeks since I first noticed this developing. The cam sprocket skipped a tooth knocking out the timing on my 86 KLF300. Found the lock pin on the rear of the cam sprocket worn - got a new sprocket. Following the factory manual I'm redoing the timing - crankcase rotor at the T mark - cam sprocket pointed upwards aligned with the KLF300 mark and the top. However, if we know how to move the drive gear from our old #2 cam to our new #2 cam, we can save the expense of buying a new pinion gear. Moving the cam gear is not as difficult as you might think. It can be a little tedious, and it may take a few tries to get the timing where you want it, but it's not that bad. Dec 11, 2008 · 93 ford explorer. V6 engine. What kind of symptoms would I have if this engine wasnt in time. Now it wont start. plenty of good gas getting to the plugs, new plugs, plenty of good spark. We think its out of time but before I go into it, I would like another opinion. If you dont really know, then dont give me your opinion. I want real answers to this question please. No sensor problems. Just ... What are the general symptoms of a 2 cylinder 2 stroke motor's timing being way off? i'm trying to figure out if my issues stem from my timing, or the piston rings. It's really hard to explain this to people who haven't been keeping up with the issues i've had over the last few months, so i'll just address things as they come along. Jul 12, 2017 · Degreeing the camshafts is the process of checking, and if necessary altering, the cam timing so that the timing is set perfectly to specified timing values. On stock and performance engines, cam timing can be off slightly due to manufacturing variations in parts such as the camshafts, cam gears, cam chain, cylinder, cylinder head, crankshaft ... May 16, 2012 · I have the factory manual but is quite confusing on setting the timing. I think I have the front cylinder on the money but the rear seams to be off. I am not getting much compression from the rear cylinder when turning over by hand. I know there is a decompression cam but this shouldn't affect the compression that much. Increases Maximum Torque. Narrow Power band. Builds Higher Cylinder Pressure. Increase Chance of Engine Knock. Increase Cranking Compression. Increase Effective Compression. Idle Vacuum is Reduced. Idle Quality Suffers. Open Valve-Overlap Increases. installation of your new Crane camshaft in your "Big Twin®" Harley-Davidson®. This instruction guide is not designed to perform as a complete service manual. If you are not sure about dimensions, torques, timing setting, etc. not included in this material, refer to your service manual for your model of motorcycle. Apr 02, 2019 · In the table below you can see the intake cam timing was retarded by 6.625° and the exhaust by 9.50° when compared to the new cam chain timing values. For the average weekend warrior this may not seem like much but in terms of performance engines this is miles off the mark! Just finished valve job, lined up the cams as to where it looked as if they were in the right place with the IN and EX lines faceing away from eachother, put everything back together, now it seems as the bike has a loss in power and a terrible stumble at 5k rpm. It has only run for about 1-2... I just had my dealer install a SE-255 cam in my 2012 RGU and it took them a week. The problem turned out to be the technician installed the cam with the timing off by one tooth. They said it was popping, missing and making a ticking noise. They eventually got it right and treated me well financially for "being patient". Aug 21, 2019 · Timing Marks . The mechanic should examine the flywheel at this point to locate the TDC timing marks. Highlighting the marks with an orange paint pen, for instance, will help to see the marks more clearly something that is particularly important when using a timing light for ignition timing checks. Jan 02, 2008 · that sounds like a stretched timing chain that skipped a tooth or two, you guessed it right, the reason why it is showing so far advanced is because the computer is trying to compensate with the... When the timing belt is stretched or is missing teeth, it can throw off the engine's natural rhythm, causing the vehicle to vibrate or shake. Overheating, lack of power, pinging. Most modern ignition systems have some sort of electronic advance built in, so the timing changes with rpm. If the timing is too far off the ignition will still produce a spark but the engine won't start. But that only happens if something is seriously twisted or the flywheel key is sheared. May 01, 2008 · But it should always be checked because any number of variables can throw off cam timing. These factors include, but are not limited to, an improperly marked timing chain, errors when machining ... Oct 10, 2012 · Just to give you an example of cam timing theory, a cam with 107 degrees of intake-lobe centerline will actually be centered at 103 degrees ATDC when the camshaft is installed four degrees ... If the #2 cam was off then both the intake and exhaust cams for the front cylinder would be off as well. Also, The points system runs off of the #2 cam. So I guess we can all assume the #2 cam is fine because the front cylinder runs perfect. Both ignition timing as well as cam timing for that cylinder is ran off of the rear intake cam (#2). The timing belt tensioner keeps the timing belt at the right level of tightness. Otherwise, the belt will slacken until it slips up and misses one or more teeth on the crankshaft or camshaft, disrupting the valve timing and throwing off the engine’s operation. Mar 29, 2016 · In some engines, clicking and ticking noises may occur when something as simple as low oil level is present, but may also indicate a valve sticking, loose cam chain or other valve train problems. A... Sep 25, 2011 · Would i be off timing by 1 cam or both? And say i push the distributor all the way towards the firewall and the timing light mark flys towards the bumper BUT makes more power, should i move the cam(s) 1 tooth clockwise? Since the more re tarded the timing is the better it runs? Advice most appreciated thanks ETCG & jacobnbr1! Keep your motorcycle engine protected with Quicksilver 10W-40 Full Synthetic Off-Road Motorcycle Oil. Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Oct 07, 2015 · In 1928 Harley-Davidson offered its ‘Two Cam’ racing engine in a street legal motorcycle for the first time, it was called the Model JDH and it was one of the fastest motorcycles you could buy anywhere in the world. Took the front cover off this morning and removed the timing plug and put engine at TDC(T lined up in sight window). Looked at cam alignment and timing mark on block is at 12 and cam gear is at 10-so definitely out of time. Now, the chain is loose and the tensioner is not resting on the chain guide-don't now if this is right or wrong. To accomplish this weights and springs are attached to the points cam. As the cam spins on its shaft, centrifugal force causes the weights to move and turn this cam on its shaft, advancing the timing of the spark, thus giving the combustion process more time to occur as the rpm goes up. 8. Remove The Timing Chain Guide. The final step before removing the chain is to pull off the timing chain guide. This is where the bottom end of the rear-side timing chain slider mounts, and is designed to hold the chain onto the correct tooth on the crank gear so you don’t risk skipping a tooth as you adjust the valve clearances. Keep your motorcycle engine protected with Quicksilver 10W-40 Full Synthetic Off-Road Motorcycle Oil. Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. The cam sprocket skipped a tooth knocking out the timing on my 86 KLF300. Found the lock pin on the rear of the cam sprocket worn - got a new sprocket. Following the factory manual I'm redoing the timing - crankcase rotor at the T mark - cam sprocket pointed upwards aligned with the KLF300 mark and the top. Jan 16, 2020 · Drape the timing chain over the cam sprocket and hold it in place with one hand while working the chain around the crank sprocket with your other hand. Then push the cam sprocket into place and finger-tighten the bolts. Check alignment again, and check to ensure even tension on both sides (left, right) of the chain. In a situation where the ignition timing is retarded too far, the plugs ignite the fuel too late, allowing it insufficient time to burn completely. This causes a loss of power and poor fuel economy. Hesitation and backfiring will accompany the loss of power causing the plugs to foul leaving them with a black “sooty” appearance. As the vehicle starts, check the timing light on the harmonic balancer and the timing belt (and the timing mark on it). Step 4 - Make the Adjustment . Now you can determine the camshaft timing by referencing the mark to the status of the first cylinder, i.e., the timing light will show the chalk mark when the cylinder is in position. What you ... Mar 07, 2011 · Although my timing belt is set perfect, my cams were swaped into the new cylinder head, and so I am wondering, what would the symptoms be of a cam chain being off perhaps one tooth? I assume my ECU would try compensating for it, and maybe it could do a good job at it-- or atleast to an extent... Trying to diagnose if my cam timing is off on my GL650. Purchased the bike last fall. Had bubbles in the radiator and diagnosed a failed head gasket. Replaced bad gasket. Bubbles gone but engine still runs on the hot side compared to my GL500 and two other 650's I have ridden. Engine vibrates... I was reading on here and seen it can be off 180* can someone explain that a little more? When the piston is at TDC that just means at the top most position right? Then at TDC where should the cam be? Whats the timing mark on the cam sprocket? There's 2 little lines on the sproket 180* apart, are these it? or is it the key on the camshaft?