I totaly messed up and took the head off without putting the #1 piston at TDC. I simply shut the car off and went right to work taking off the head without marking anything! I remember piston positions when I took the head off. #1 piston looked liked it had just fired and on its way back down about a 1/4 inch down from top, #2 piston was down, #3 was down and #4 was up. I need to know how to find the spot where the cam was positioned and the crank when I started this project. Can you please help? I put #1 piston at TDC, Lined up the marks on the camshaft pulley, but my rotor is positioned between #1 and #3 on the cap?
An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert whose answer got voted for 20 times.
An expert who has answered 20 questions.
Re: Still need advice
Turn crank so that timing mark on front pulley is at 0 degrees.
Remove the timing cover and you should see a mark for the cam to line up with.
You want the cam lobes on No.1 cylinder to be pointing away from the followers wether they be rockers above cam or buckets below. This will be the compression stroke.
Once the cam timing is set you can recheck the distributor. It should point to No.1.
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need. goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The best way is to turn engine over to #1 cylinder, turn by damper pulley. Remove #1 spark plug first and put a straw or similar device in plug hole on top of piston so you can tell when its at tdc. Just before #1 piston goes down thats tdc. To replace distributor put it back in with rotor button pointing to #1 wire in cap,tighten, replace the plug then start vehicle When vehicle starts adjust distributor by turning it either way. God_bless!
put the notch on crank pulley align with tdc (top dead center mark) on timing cover
Remove valve cover, firing order for a 4 cylinder engine 1342, piston 1 and 4 are up in same time,rocker arm on cylinder 1 intake and exhaust must have play, while on cylinder 4 must be in overlap both valves starting to open (partly depress),if no timing mark inser a screwdriver throught sparkplug opening turn gently to get the piston at tdc if so valve timing is ok without checking any mark,if you remove the cover you will see the mark at the right place
1 and 4, 3 and 2 are companion piston, you could do the same with 6 or 8 cylinders, you must know firing order
check the plug wires to make sure there in the right firing order then i would recheck the timing once again the roter can be just a little off and you should be able to get it started if that dont work i would check the timing chain.
To set the timing you should turn the No.1 piston to TDC, then turn the cam to where both valves on No.1 are close. The timing mark on the sproket should now be in line with the mark on the cilinder head. With No. 1 still on TDC fit the chain.
After fitting turn the engin a few times by hand to make sure there's not a valve pushing against a piston.
If the timing chain is still in the correct position its an easy fix. Put screwdriver down spark plug hole #1 and rotate the engine over by hand until you reach TDC e.g. piston fully up. Now your either on the start of the ignition/power stroke or at the end of the exhaust stroke. Im not sure of the firing order of your specific engine but basicly this means that the engine is either firing on 1 at TDC or its firing on its other piston. Just put the screw driver down the other cylinders and find the other piston thats at TDC. Put the distributor back in so that the rotor button lines up roughly with the post on the cap that lines up with one. Put the cap back on and try and start it. If it almost starts just trim up the cap a little (twist it by a few degree either way) If it sounds way out then pull the distributor back out and line it up with its mate piston.
Hope this helps
Hi there.... I'm assuming you have the head back on. the easiest way is to try and line up the timing marks an the pulleys and install the timing belt. If you have done this and the timing marks line up as they should, you can take the sparkplug out of the #1 cylinder and manually turn the engine over till you can feel air pressure coming out of the plug hole. continue turning the engine till you can't feel anymore pressure. Don't go too far cause then you'll be on the intake stroke and you'll have to turn the engine the opposite way. with the #1 cylinder at TDC, take you distirbutor and cap and figure out what position the rotor should be at for #1 plug. Mark the distributor somewhere where that position is ( where the #1post on the cap should be). Finally insert the distributor and try to get the rotor as close to that position as possible. remember when you install the distributor, The rotor position will move due to the gear set up. Once you have the distributor istalled, you can adjust the distributor for timing by turning it. Hope this helps you out. If you have any other questions, please don't hesitate to ask..