bad timing???

[boost69]

hey i have a 95 2g and i think my timing is off, my vac reads 15 at idle and its very lean and when i drive it it boosts slow and the bov doesnt sound right, and im not sure how to check or adjust timing, any help would be appericated
thanx

 

[bsbllfit7]

you cannot adjust the timing on your car. It is set from the factory, the only way you could change it is if you were to get a 1g cas and swap that in. I would check for vacuum leaks. Pressurize your charge pipe and youll hear the air rushing out somewhere. Get that fixed and your problem should be fixed

 

[Chicken Patty]

Here's a simple how to if you decide to do a boost leak test. However, running really lean? I see you got a few mods and upgrades. Maybe the car needs a tune. Mine did that and I gave it a drive ability tune and it drove much much better.

IC Pipe Tester

 

[boost69]

ive done a boost leak test and thats not the problem, then what do i do if my timing belt jumped one tooth?

 

[Chicken Patty]

The car won't jump a tooth if it's set in timing properly. Have you tried tuningthe car for driveability, like your fuel trims and such?

 

[XiKeiyaZI]

The car won't jump a tooth if it's set in timing properly. Have you tried tuningthe car for driveability, like your fuel trims and such?

I'm sorry.. you mean to tell me that once the timing belt is set, it will never jump?

...


Take off your Crank Pulley and top Timing Cover.
Turn the Crank until it's lined up with the timing mark.
Check at the CAMS. See if the timing marks are lined up with each other and level with the Head surface.

 

[Chicken Patty]

I've never seen that happen when done properly.

 

[XiKeiyaZI]

I've never seen that happen when done properly.

Even if it is done properly, you can never say for 100% that your belt will not skip timing.

Belt Wear
Belt Age
Belt Stretch
Tensioner Adjustment
Pulley Wear
Pulley Age
Twist of fate

A belt skipping timing, jumping timing, shredding, breaking, or tearing happens OFTEN. In fact, it's one of the most common issues with our vehicles. I'm surprised this is news to you.

The First thing you should check besides a boost leak is timing, and that's what I stand by. It takes 10 minutes and could save you plenty of time, money, and headaches.

 

[dyetrying91]

Even if it is done properly, you can never say for 100% that your belt will not skip timing.

Belt Wear
Belt Age
Belt Stretch
Tensioner Adjustment
Pulley Wear
Pulley Age
Twist of fate

A belt skipping timing, jumping timing, shredding, breaking, or tearing happens OFTEN. In fact, it's one of the most common issues with our vehicles. I'm surprised this is news to you.

The First thing you should check besides a boost leak is timing, and that's what I stand by. It takes 10 minutes and could save you plenty of time, money, and headaches.

Agreed. I lost a valves due to skipped timing. Skipped over 3 teeth. and BAM, there goes the head.

 

[Chicken Patty]

Well, I might have worded my post wrong and I take the blame for that, but of course if something is worn down then you run that possibility. I meant go say if done right and everytime is in good conditions. Of course, if you've had the car for three years per say an you've never replaced the belt and/or components, then of course I'd be worried too.

I do agree with checking timing, hopefully if it was that there was no damage. What would be the chances of any damage if it was just to be one tooth it might have jumped?

 

[XiKeiyaZI]

Well, I might have worded my post wrong and I take the blame for that, but of course if something is worn down then you run that possibility. I meant go say if done right and everytime is in good conditions. Of course, if you've had the car for three years per say an you've never replaced the belt and/or components, then of course I'd be worried too.

I do agree with checking timing, hopefully if it was that there was no damage. What would be the chances of any damage if it was just to be one tooth it might have jumped?

Usually 1 tooth will only result in poor running conditions. Missing, stuttering, loss of power. 2 teeth you're looking for valve trouble. 3 Teeth and you can say bye bye to those valves.

But don't be assured that even if everything is new that it will be fine. There was a post here where someone had just installed a new Timing belt and the teeth separated from the actual material and they skipped their valves off their pistons. Even brand new hardware can be faulty.

 

[boost69]

can some one give me a diagram on how to check timing ?

 

[dyetrying91]

Usually 1 tooth will only result in poor running conditions. Missing, stuttering, loss of power. 2 teeth you're looking for valve trouble. 3 Teeth and you can say bye bye to those valves.

But don't be assured that even if everything is new that it will be fine. There was a post here where someone had just installed a new Timing belt and the teeth separated from the actual material and they skipped their valves off their pistons. Even brand new hardware can be faulty.

I spent a weekend doing a headreplace/timing belt job. Got it all back together, started the car, took it for a quick spin, and there goes my belt again. Brand new OEM belt, one of the teeth completely shredded at the crank and it skipped the next 2. Have slight piston head damage and needed another valve job.

 

[boost69]

and also i heard from someone that if the timing is off it would make me have bad compression, but i tested compression and its good across the board

 

[Chicken Patty]

Interesting, other than it being faulty never heard of that happening to new components if installed appropriately. But that's just me you know.

 

[XiKeiyaZI]

and also i heard from someone that if the timing is off it would make me have bad compression, but i tested compression and its good across the board

Yes, that is true to an extent.

You still need to check it. Better to be safe than sorry. I'm not saying that it IS your problem, I'm saying that it's a Candidate. You don't want to get her running decent, take off driving, and it wreck your valves do you?

 

[dyetrying91]

and also i heard from someone that if the timing is off it would make me have bad compression, but i tested compression and its good across the board

What was your compression at?

 

[boost69]

150 across the board, are the cam gear timing marks supposed to be level horizontal, or on a bit of an angle like the engine is ??? if anyone can give me a picture, it would help greatly, as well as if it did jump a tooth how to i put it back?

 

[dyetrying91]

150 across the board, are the cam gear timing marks supposed to be level horizontal, or on a bit of an angle like the engine is ??? if anyone can give me a picture, it would help greatly, as well as if it did jump a tooth how to i put it back?

Timing Belt VFAQ

That is the whole writeup on how to do a timing belt. the two cam timing marks should be perfectly even and perfectly level with the cylinder head. You have to also check the crankshaft timing marks under the crank pulley to make sure that it is spot on as well.

You must be logged in to view this image or video.

 

[boost69]

ok so they have to be on an angle to be level with the cyl head, and how do i put it back??? just pop the belt off and turn the cam??

 

[dyetrying91]

angled and level with the cylinder head. Popping the belt will pull everything else out of timing. It's not a 30 minute fix. Takes a few hours, maybe a day or 2. Read the vfaq link I posted up.

 

[boost69]

why can i not just pop the belt off of that cam and turn it in to time with out messing anything up??

 

[dyetrying91]

why can i not just pop the belt off of that cam and turn it in to time with out messing anything up??

you have to detension the belt, you should just replace the belt and water pump and balance shaft belt at the same time. Just "popping" it off the cam is asking for issues.