help: 93 vr4 running rough suddenly (datalogs incl.)

[stealthtuner]

im definitely going to check the timing. look into it more. But it literally would have to skip a tooth upon start-up because the night before it drove fine and months before that.

[Chris@Rvengeperformance]

im definitely going to check the timing. look into it more. But it literally would have to skip a tooth upon start-up because the night before it drove fine and months before that.

A loose belt is more likely to skip on startup than any other time. once it has load on it, it tightens up.

[mjannusch]

im definitely going to check the timing. look into it more. But it literally would have to skip a tooth upon start-up because the night before it drove fine and months before that.

Stop making assumptions and start testing things to determine whether they are actually correct or not. Something is wrong. Assuming things are okay obviously is not getting this car fixed.

[NOMIEZVR4]

now you gotta bump threads on both forums..! its a lot of threads...i think you got 4 altogether that you bump at the same time right? ..

[Greg E]

Compression test would also reveal some secretes.

[stealthtuner]

im not assuming anything. but I am freaking out. If this is the timing belt and it needs replaced I simply dont have the time, money or expertise to fix it. I would have to either fix it with some friendly help for a small sum or take it to a neighborhood mechanic for a couple hundred bucks(ish).

also if the timing is THAT far off im worried about the internals (valves).

How could it even run? Let alone idle, start up everytime and be able (technically) to drive down the road (not that I do) ?
Its just a ponderous question. I need to check the spark plug thing and behind the crank pulley. Ill be lucky if I sleep tonight. Im freaking out.

Can someone please direct me to a write up, some pics (maybe stealth316, which is kind of unsearchable), a thread or a little more detail on exactly how, with what tool and what to do?

[stealthtuner]

its alot of threads because ive been spending every moment thinking about it. it keeps me up at night. I research and post and take pics and ask friends amd 3s guys and mechanics, tow it to a shop, from a shop back home, ask family. I have tried soooo many things to fix this issue and spent even more time thinking, discussing and researching. thanks for all the help and im sorry to be needy but thats what community is for right. to help each other. thanks again.

[anyonebutme]

Where are you located, because at this point, I think the best option is to find you a local 3S guy to come over and answer this issue in 10 minutes.

[Jimvr4]

Matt and Coop already told you. Get plug number 1 out and place a long handle screwdriver into #1 and turn the motor over with a 1/2 inch drive until the screwdriver reaches it's highest point. All timing 5 timing marks should be aligned at this point. If your crank is off alignment then remove the pulley and check the crank sprocket mark. Get oohnoo's crank pulley holder tool.

[stealthtuner]

how do I check the crank sprocket mark? all 5 timing marks. u mean on the cam gears? what about the one on the crank pulley.

I hope the notch im seeing at 35 advance on the crank pulley is not the timing off itself. maybe its not even the right mark. im gonna look into this. I just have never done this. Im in loveland ohio. near cincinnati.

link for the crank pulley holder tool?

do u have a timing link for stealth316? im having trouble visualizing. im gonna try to get some local help but everyone is too busy.