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Changed head plus other things, now car wont start

11K views 42 replies 11 participants last post by  Ohiojosh  
#1 ·
I was recently ripped off by someone on a 2001 VW Passat 1.8T (AUG)

It ran great in test drive, then 24 hours later it is rattling (timing chain tensioner), and overheating (most likely blown head gasket). Somehow he got it to work long enough for me be buy it then then disappeared. Since then I have become very stressed out, very broke, and a member of this site. I have replaced these items:

Coolant cap
timing belt
water pump
timing belt tensioner
timing belt pulley
Cylinder head
Head bolts, Head gasket
Spark plugs
Timing chain tensioner
Cylinder head hose flange

My head gasket was blown and the head was warped almost beyond repair. I bought a new cylinder head and replaced everything above. Last night was the big day and when I try to start it would not, it just kept turning. I believe we timed it to specifications. I got literature from a guy who works for vw and used my haynes manual. The timing chain has 16 rollers between the marks on the cams, and the left one is just slightly off to the left like in the book. The timing belt marks all match up at the same time with the timing chain marks. I also counted the teeth on the belt I took off and bought the right one. We also turned it by hand before trying to start it to make sure to not ruin the valves if we were off.

So my question(s) are:

What could be wrong with timing on the timing chain or belt, other then what I've mentioned?

Does the computer have to be reset after the work we've done, or all the overheating before we replaced the parts?

Could it be coil packs? They worked before but they have been laying on the car for two to three weeks while we were doing the work.

I don't know whats left, I'm going crazy, this car has become a strain on my family and my finances, I really need some help.
 
#3 ·
Since post I checked spark and all plugs are firing. Fuel pump is running.

When we cranked it nothing up top was put back together, so no the coils were not on. One plug I just took out was black and the others were fine, all the plugs are brand new. It is acting like a car out of time, but we have followed everything by the book.
 
#6 ·
Im not with the car right now, but I can get some pictures posted this afternoon some time. The cylinder head I put on is absolutely brand new not rebuilt, or remanufactured. It came with new cams, and everything except chain, and tensioner. knowing this do I still need to do a compression check?
 
#8 ·
Ohiojosh, open the UserCP and fill out the information about your car and your location. There are plenty of fellow enthusiasts here that may be willing to help if you tell people where.

The compression check will indicate if the intake cam is off a tooth. This could cause the car to not start.

Did you check the cam journals on the old head? Were they scarred/scored from oil starvation?
 
#9 ·
Thanks for your help, I filled out UserCP.

I will do a compression check in the next couple hours, as well as get pictures on here. When I do a compression check, what sort of indication will alarm me that the intake cam is off a tooth.

The cam journals did not seem to be in bad shape, but I will get a picture of them so you can judge.
 
#14 ·
could be the cam chain off. What does your compression say? Undo the feed fuel line and have someone turn the key on, see if it pours a good stream.
Just noticed your crank pulley is holding by only 2 bolts. are other 2 holes accessible for bolts? As far as marks they look too good. Mine is half a tooth off.
 
#15 ·
We did a compression check and they all came up 135 or higher. It appears that everything is correct as far as timing. My car was very hard to start just like this before we changed the head. It had overheated a few times, and became increasingly hard to start, almost like it had a wet distributor. We figured the warped head, or blown head gasket was causing this, but now that that stuff has been repaired, it is still starting this way. Could it be a problem with the computer?
 
#17 ·
As far as I know the sensors are right. Me and two experienced mechanics have combed this car for things like that since two days before my first post. We checked the fuse panel as well. One fuse was bad and we changed it but it did not help. Im not sure about the check engine light now, and Im not with car to check. But as long as I have had the car the "maintenance required" warning always came on shortly after I turned the car on. We did suspect the engine speed sensor, but it appears to be okay as well.
 
#18 ·
temp sensor. That is the only thing i can think of to keep it from starting if all else is well.did you foul out the spark plugs? If the fuel lines were empty it will take some cranking to get it fired up also.
Maybe adapt the throttle body too.
these are what I would check
if the engine light lights all is good, if it does not then there is a problem.
 
#19 ·
I will check the temp sensor. Would the extreme over heating cause the temp sensor to fail?
The spark plugs were new and it wasnt starting then. All of the trying has probably fouled them out now (or mostly). it is definitely getting fuel as we have had to take the plugs out and dry them off multiplpe times to ensure It wasnt flooded.

What do you mean "adapt the throttle body", and "if the engine light, lights"?

Thanks for your help
 
#21 ·
You said you got "135 or higher" on your compression, was this done on a cold or warm engine? your numbers will be lower on a cold engine.

when it starts, does it stay running? if not, how long does it run for? hows is the idle?

You can do the adaption by just removing the negative connection you’re battery and letting it sit for 5-10min. Connect the wire, turn your key so just the lights on your cluster light up & you’ll be able to hear the throttle body clicking around. This clicking lasts a minute or so. If you have access to a VAGCOM, follow this method
http://www.ross-tech.com/vag-com/cars/throttlebody.html

You replaced the cam chain tensioner gasket right?
 
#22 ·
The 135 came from a cold engine because we havent gotten it started.

Before the engine work, it was increasingly hard to start, in fact the last time it was started we jump started it by dropping the clutch. When we did that it would only stay started by sitting in it and keeping it going. We had to shut it down though, because there was to much unburned fuel in the catalytic converter from trying to start it and it was cherry red.

I did replace the CCT gasket as well as the half moon seal.
 
#24 ·
135 is way low for a 'new' head gasket and head. But if it's a solid 135 across the board... Did you check the timing marks BEFORE you took your engine apart? I did the head gasket on my old '87 Golf in my backyard years back, and when it went together I double-checked the install. The timing marks were WAAAYYY off, but the timing was correct. Had I lined up just the marks, it probably wouldn't have ran...
 
#28 · (Edited)
I have taken off the valve cover so many times and adjusted one tooth either way probably eight times. All the keyways line up at TDC. I don't see how it can be the timing. Through our trial and errors we would have had it close enough in time to at least start poorly. It is not starting at all. Everytime we made adjustments we craked it over by hand as well to be sure and not bend the valves.