plz. help! won’t start

[venom]

I’m working on my 89′ ford probe GT & it cranks but won’t start! I’ve recently noticed it jumped time since I didn’t tighten it enough & waterpump wasn’t quite tight either…-(I replaced both during headgasket replacement)-been told to do a compression test so I’ve ordered a tester. Also been told by a local mech. thats it’s a sure thing I bent valves atleast trying 2 start the vehicle…He told me I’d notice a difference in height looking at the valves after removing the valve-cover if bent. Any thoughts on any of this? I’ll be sure to post my findings from the comp. test soon aswell…ThankU! Also gets fuel & spark! dumps fuel on spark plugs most of the time & I’ve tryed re-aligning the timing but still nothing! I did find my old #4 plug tip pushed in so that may be bad but I’ve also replaced the plugs recently.

Topic

[Matt]

Are you positive you have the right timing belt? If your timing is off every single time you set it and rotate it twice, I imagine it can’t be the right one. This could also explain why it won’t start…

[Mike]

you need to slow down and take a step back and stop researching. This is what you want to do…

step 1: compression check with open throttle and disabled fuel
step 2: leak down test if compression is that low (if you don’t have a compression you have a few options)…buy a compressor, pull off the head, or take the car to a mechanic

A bent valve won’t necessarily give you 0 compression and fuel in the cylinders won’t give you 0 compression. Also, skipping 1 or two teeth more than likely won’t bend a valve.

A way to see if the belt skipped a tooth is the split overlap test. Open the oil filler. Put the engine at TDC exhaust stroke. Then watch the intake and exhaust valves. Turn the engine BY HAND one direction. The valves should move one way. If you turn the engine a little the other direction, the valves should move the other way. If they move the same way both directions, the belt is off.

[dreamer2355]

I would do a leak down test next and it seems your sources of info are miss informed.

And also, depressing the accelerator pedal puts the vehicle in a clear flood mode which basically makes the stoichiometric ratio 18.1:1. It does not add fuel.

[EricTheCarGuy]

So are you gonna do that leak down or keep grasping at straws?

[venom]

Quoted From EricTheCarGuy:

So are you gonna do that leak down or keep grasping at straws?

Can’t do leakdown test so forget it, I’ll just give in to bringin it to a garage…I’m sorry to bother U all with my problems. Thankyou

[EricTheCarGuy]

I’m sorry you feel that way but you realize that you can use the compression tester hose to do the leak down as I showed in the video. The frustrating thing on my end is that I keep offering suggestions and you seem to ignore them, these are suggestions that I feel would help you find the source of the problem. It’s hard to help someone that isn’t open to suggestion. Good luck.

[venom]

Quoted From EricTheCarGuy:

I’m sorry you feel that way but you realize that you can use the compression tester hose to do the leak down as I showed in the video. The frustrating thing on my end is that I keep offering suggestions and you seem to ignore them, these are suggestions that I feel would help you find the source of the problem. It’s hard to help someone that isn’t open to suggestion. Good luck.

I’ll have to watch the video again but I don’t have any help!!! I do all work myself but I’ve never had this problem B4! I’m always open 2 suggestions but it’s difficult when NO1 else is around 2 help nearby!!! I will be taking a trip in my other car soon so I’ll be researching while away! Thank-U 4 your help/patience & happy holidays!

[Shirokuma]

I have to study the car repair procedure numerous times, so that I know when the result is deviating from the norm. How many of you had a wheel nut that wouldn’t come off with a 1500 lb air tool? The nut turned with a high quality breaker bar and 6 feet of pipe. I broke my breaker bar. Which was only good up to 375 ft lbs.

I also know what it is like to work without a safety net. Working by yourself, without the benefit of an experienced hand, leaves you on the edge with the possibility that you will make matters worse. It either requires a lot of self-confidence or an attitude that you have nothing to lose. This is difficult at best when you are working on the family car that needs to work the same day or tomorrow.

I would not be seeking advice from multiple forums. “Well, he said, and they said” is only going to add to the confusion. KNOW THAT THESE GUYS HERE will stay with you to the end until the problem is solved!

Research away! I hope that your sources of information are good sources! The more you know about what you are doing, hopefully the better off you will be.

Find a way to do the leak down test. Maybe someone here can offer typical results of the test,… more useful information!

[venom]

Quoted From EricTheCarGuy:

So are you gonna do that leak down or keep grasping at straws?

could I do a leak down with a normal air tank? holds over 100psi of air but how do I rig it up?

[EricTheCarGuy]

Quoted From venom:

could I do a leak down with a normal air tank? holds over 100psi of air but how do I rig it up?

I’ve never tried it but I suppose it might work for a short amount of time, all you really need is some air pressure and the ability to listen for where it’s leaking, the more air pressure the easier it is to hear where it’s going however. It’s worth a shot I suppose.

[EricTheCarGuy]

The thing is the hook up to the compression tester hose, I don’t think I’ve seen an air tank with a regular air chuck that you can hook an air hose to, I’ve only seen ones that are made to fill tires and I don’t think that would work unless you could remove that end and replace it with a regular air chuck.

[Author]

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