| brownracer |
So i got to my friends house to drop him off and as soon as i got to his house, my car just shuts off. The t-belt broke.
Is it possible that any valves bent even though the car was just sitting there ideling???
And if so, how would you tell??
I put a new t-belt in yesterday and when it idels at 700rpm the engine shakes a little... sorta sounding like its about to shut off. Is that a sign that there might be a few valves bent? |
|
|
| Xtra_X |
| Sounds more like the timing is off than bent valves, but I'm not sure does a Talon have an interference head engine? |
|
|
| STiPWR |
quote:
Originally posted by brownracer
My timeing belt broke in my car, good thing was I just got to the place i was going to, and parked my car. While i was waiting for the turbo to cool down, and then the car just shut off.
Is it possible that any valves bent even though the car was just sitting there ideling???
And if so, how would you tell??
I put a new t-belt in yesterday and when it idels at 700rpm the engine shakes a little... sorta sounding like its about to shut off. Is that a sign that there might be a few valves bent?
So you snapped your timing belt, then you let it idle for your turbo to cool down????
lol. |
|
|
| n0c7 |
quote:
Originally posted by Xtra_X
Sounds more like the timing is off than bent valves, but I'm not sure does a Talon have an interference head engine?
Oh it most certainly does. The 4G63 anyway, which the TSi has. Oh and, if you had no engine damage and you replaced the belt and put it on wrong, you could have damage now for sure. |
|
|
| Xtra_X |
| the sorry for you bud you may be in fucked-ville |
|
|
| nx2k |
| I used to own a plymouth laser when I was 16, I snapped my timing belt at 5k RPM, I drove it home, then I drove it from Red Deer to Lacombe had a friend fix it, and turned out fine.... |
|
|
| Xtra_X |
how can you still drive when your timing belt snaps? I don't get it.
If belt snaps then cams no longer rotate which means no open-closey.
No internal combustioning.
Get my drift? |
|
|
| JustinL |
quote:
Originally posted by nx2k
I used to own a plymouth laser when I was 16, I snapped my timing belt at 5k RPM, I drove it home, then I drove it from Red Deer to Lacombe had a friend fix it, and turned out fine....
LOL |
|
|
| nx2k |
| The car toped out at 86km/h and it accelerated slower than a moped towing a car... |
|
|
| jzz30tt |
| Maybe your belt slipped? If no belt then like xtra-x says, no valve openy closey and no running engine. |
|
|
| nx2k |
quote:
Originally posted by jzz30tt
Maybe your belt slipped? If no belt then like xtra-x says, no valve openy closey and no running engine.
Maybe... this was a few years ago, the mechanic told me he replaced timing belt... I'm not a mechanic so I don't know, but I see how it doesn't make any sense... but I remember pulling out my spark plug wires and checking if cylinders work, 2 of them weren't working... |
|
|
| brownracer |
The teeth on the belt ripped right off right on the crank pully.
I know i put the belt in right, and im pretty sure that there is nothing wrong with the valves. Im pretty sure the car would sound way worse.
I did just put a new fuel pump in also, maybe i got debree stuck in my injectors or something. |
|
|
| Xtra_X |
quote:
Originally posted by brownracer
The teeth on the belt ripped right off right on the crank pully.
I know i put the belt in right, and im pretty sure that there is nothing wrong with the valves. Im pretty sure the car would sound way worse.
I did just put a new fuel pump in also, maybe i got debree stuck in my injectors or something.
What did you meanby "you put the belt in right"? Did you reset the timing? or just replace the belt as she sat. |
|
|
| brownracer |
I did everything right.
I reset the timeing, made sure the cams were lighned up proper, crack mark was where it was supposed to be.
Im getting bored with DSM'S |
|
|
| Xtra_X |
So your timing should be good. do a compression test it'll tell you if your valves are not sealing.
Other than that we are just guessing at the problem. For all we know it could be any problem not related to the timing belt incident. |
|
|
| brownracer |
true that.
compression test it is.
Im gona go do one right now. |
|
|
| Adam |
Youre engine is an interference motor, which means that at any rpm and the t belt snaps you will have valve to piston contact. The motor is shaking because of the bent valves you didnt fix.
Pull the head off. |
|
|
| brownracer |
wow.
this is gay. |
|
|
| Ayeso |
quote:
Originally posted by Adam
Youre engine is an interference motor, which means that at any rpm and the t belt snaps you will have valve to piston contact. The motor is shaking because of the bent valves you didnt fix.
Pull the head off.
That is not always true... I've seen 3 honda engines that have snapped T belts without having the pistons and valves bent and they are interference. I have also seen 20 or so that have had some bad carnage haha |
|
|
| Prudz_lude |
| same i have heard a few stories of people at redline when the belt snaps and not bend valves or any damage. the odds are against you but there is always hope. |
|
|
| Dan_s_young |
Ok there is some messed information here. You let the vehicle idle for a few minutes after the belt snapped? Similar to that plymouth laser story thats BS, you snap the timing belt and your vehicle isn't going to run.
You want to do a cylinder leakage test and you can see exactly what is leaking. Either that or you could pull the head off and visually inspect if your valves/pistons are infact damage and require extensive repair. |
|
|
| Dublin_19 |
quote:
Originally posted by Dan_s_young
You let the vehicle idle for a few minutes after the belt snapped?
i think he ment that it snapped while he was letting his turbo cooldown |
|
|
| Psi |
Check your ignition timing. See what its at, should be 5 BTDC. And as long as the lines are matched on your cam gears, then your valves are properly timed.
Its probably just an ignition timing and or idle RPM problem. |
|
|
| brownracer |
| a ill check that out. |
|
|
| DSM |
| Did you do a compression check yet? Do that and it will let you know if there is any valve damage. Also you may think that you put the timing belt on proper but you could be out, or your balance shaft is out 180 degrees. Did you put a screw driver into the back on the block to make suer the balance shaft was in the roght spot? |
|
|
| brownracer |
no i dident.
i dident even know i could do that. |
|
|
| brownracer |
ya i was reading my haynes repair manual.
"It is critical that the balance shaft has the weighted portion at the bottom of the shaft ( it is possible to align the marks with the balance shaft weight at the top; If you do this accidentally, severe engine vibrations will result."
Thats exactly whats happening, engine vibrations.
When I was putting in the timeing belt, i dident know i was supposed to check the balenceing shaft. That was my bad, and i think i just found my problem. Im still young and learning, and we all learn from our mistakes. Hopefully i can do this right though. |
|
|
| Blaine B. |
quote:
Originally posted by brownracer
ya i was reading my haynes repair manual.
"It is critical that the balance shaft has the weighted portion at the bottom of the shaft ( it is possible to align the marks with the balance shaft weight at the top; If you do this accidentally, severe engine vibrations will result."
Thats exactly whats happening, engine vibrations.
When I was putting in the timeing belt, i dident know i was supposed to check the balenceing shaft. That was my bad, and i think i just found my problem. Im still young and learning, and we all learn from our mistakes. Hopefully i can do this right though.
While you are in there you should just eliminate the balance shafts.
$125 for the kit, a little difficult to install with the engine in the car, but reliability goes through the roof and you lose 10lbs of rotating mass out of the engine that spins @ double the engine rpm at the same time. Sweet crunchy goodness. |
|
|
| brownracer |
| Exactly how hard is it to do with the engine in the car? |
|
|
| Blaine B. |
quote:
Originally posted by brownracer
Exactly how hard is it to do with the engine in the car?
The hard part is getting the shafts out of the engine, there isn't alot of space between the engine and the inner fender. It can be done if you drop a couple engine mounts on the driver side and allow the engine to "sag" over on that side, then you can slide them out. |
|
|
| brownracer |
any ideas on where i can get the kit?
Mopac? |
|
|
| Blaine B. |
quote:
Originally posted by brownracer
any ideas on where i can get the kit?
Mopac?
Subracing! |
|
|
|
