Timing chain woes
09-28-2010, 05:45 PM
#21
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WELL.. only time will tell I do suppose but I truly do want to lean in your directin because it makes me sleep better...Ill check the valve train then go from there thanks for putt'n up with me...
09-28-2010, 05:47 PM
#22
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09-28-2010, 05:51 PM
#23
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Not to get in the middle of this pissing match. But I have seen non interference motors (not necessarily a 22re) bend valves under the right circumstances. For example, if you belt / chain breaks at low rpm you would be fine, but if it broke at or near red-line the the velocity alone CAN send the valves into the pistons. I'm just sayin'.
09-28-2010, 05:55 PM
#24
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um if it's a non-interference motor then why to the "dished" pistons have valve reliefs cut in them? this is so the pistons don't hit the valves when at TDC exhaust stroke then the exhaust valves are open. you break a timing chain and under the right circumstances piston will hit valve. it's just rare.
09-28-2010, 05:56 PM
#25
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Yeah my Powerplant teacher in tech school had a piston with a valve smashed into on his desk. It was sweet.
Im just trying to see whats wrong with this guys motor.
I dont just dash in to show everyone Im right about something...I try and help the person.
He needs to figure out if the chain is even broke first before worrying about valves.
Im just trying to see whats wrong with this guys motor.
I dont just dash in to show everyone Im right about something...I try and help the person.
He needs to figure out if the chain is even broke first before worrying about valves.
09-28-2010, 05:59 PM
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Not to get in the middle of this pissing match. But I have seen non interference motors (not necessarily a 22re) bend valves under the right circumstances. For example, if you belt / chain breaks at low rpm you would be fine, but if it broke at or near red-line the the velocity alone CAN send the valves into the pistons. I'm just sayin'.
That is 100% correct.
09-28-2010, 06:00 PM
#29
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^^ True, we should help the guy.
I think he is at B-TDC and his chain is intact. If the distributor is turning as he says then it isn't broken.
I would start with the basics & check for spark & fuel
I think he is at B-TDC and his chain is intact. If the distributor is turning as he says then it isn't broken.
I would start with the basics & check for spark & fuel
09-28-2010, 06:04 PM
#32
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09-28-2010, 06:12 PM
#33
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I am gettin spark 1st thing I checked gettin fuel,could smell it,(how else can you tell) the codes I received were 5,6,10,11,12 make any sense to me, kinda jibberish to me but Im not in the know thats why Im, on here gett'n info from those who are Thanks again!!!
09-28-2010, 06:26 PM
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Well, since my hands were tired with "from this site"
Here's a thread for you, from this site... Not at all sure why it's in "95.5-2004 Tacomas & 96-2002 4Runners" though...
is the 22re an interference engine (not a stupid question)
And another... https://www.yotatech.com/forums/f2/q...-engine-15654/
Last edited by tried4x2signN; 09-28-2010 at 06:34 PM.
09-28-2010, 06:30 PM
#36
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Google the codes & let us know what they are.
09-28-2010, 06:31 PM
#37
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Let me get this straight if I set the crank pulley at "0" with the mark and pull the distributor cap the rotor should be about @ 11 0'clock or #1 cylinder correct?? if not then what??
09-28-2010, 06:34 PM
#39
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Yes! but only true for the compression stroke, you are at DTC of the exhaust stroke which is why it is pointing at #3. Spin it one more full turn & it will be pointing at #1.
09-28-2010, 06:42 PM
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Right, and OP, 4 cylinder 4 cycle engine... With a 1, 3, 4, 2 firing order...
Though the physical piston will be at "TDC" it could be at a different process in the 4 cycle process.
And how you tell that is by the brains of the operation... The cam.
If the cam dowel is at 12:00 it's at TDC. #1 is set at it's compression stroke.
If the cam is at 6:00 and the crank is still at 0, it's at B-TDC. #4 is at it's compression stroke, and #1 is at it's exhaust...
And it's because of this, the problem of confusing #1 with #4 happens all the time.
Though the physical piston will be at "TDC" it could be at a different process in the 4 cycle process.
And how you tell that is by the brains of the operation... The cam.
If the cam dowel is at 12:00 it's at TDC. #1 is set at it's compression stroke.
If the cam is at 6:00 and the crank is still at 0, it's at B-TDC. #4 is at it's compression stroke, and #1 is at it's exhaust...
And it's because of this, the problem of confusing #1 with #4 happens all the time.
Last edited by tried4x2signN; 01-16-2011 at 05:32 PM.
