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22re timing chain classic symptoms


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chas
User

Jun 18, 2015, 10:06 AM

Post #1 of 7 (2614 views)
22re timing chain classic symptoms Sign In

gentlemen, 94 toyota p/up 22re seems to be running ok, but i think it may have a worn and stretched timing chain. I looked around on the web with a search for "symptoms of a toyota 22re worn timing chain". there is no noise at start up but seems to have a lot of the symptoms mentioned in the link below.
Another strange thing is the distibutor is almost max adjustment in CW position. The rotor turns clockwise. The distributor is almost maxed in the CW position with huge adjustment in CCW timing.
i had the valve cover off and checked the guides with a screw driver. They are not broken, chain seems to be tight, idles ok and no chain noise. The downside is the distributor is maxed in the CW direction, not very good mpg, etc. With the distributor in almost max CW position is this another symptom on a worn chain?

i found this on a search as mentioned in line 2 "symptoms of a ........"
(links like that not allowed)
with the distributor in almost max CW position is this another symptom. Do have anymore suggestions to get a diagnosis on the timing chain? thanks.


(This post was edited by Tom Greenleaf on Jun 18, 2015, 10:40 AM)


Tom Greenleaf
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Jun 18, 2015, 10:47 AM

Post #2 of 7 (2602 views)
Re: 22re timing chain classic symptoms Sign In

Who moved the distributor to it's extreme and why?
Please don't post links just describe what you notice instead.


One check for tension: Take off dist cap and watch rotor while turning engine by crank bolt back and forth. How many degrees does it turn the bolt (see timing marks) before distributor's rotor moves? That's common tell-tale it's loose maybe not why with a tensioner.


If a keeper at the age why not just do it and know it's done?


T



chas
User

Jun 18, 2015, 8:58 PM

Post #3 of 7 (2589 views)
Re: 22re timing chain classic symptoms Sign In


In Reply To
Who moved the distributor to it's extreme and why?
Please don't post links just describe what you notice instead.


One check for tension: Take off dist cap and watch rotor while turning engine by crank bolt back and forth. How many degrees does it turn the bolt (see timing marks) before distributor's rotor moves? That's common tell-tale it's loose maybe not why with a tensioner.


If a keeper at the age why not just do it and know it's done?


T

hi Tom,>>>>>Who moved the distributor to it's extreme and why?<<<<
ive had it about 2years and thats how it was. I tried pulling the distributor out and move the rotor to advance or retard one tooth to center it better. did not run. put it back to original position it ran. Just wondering if the distributor position can drift with aging of the chain and tensioner. ill try your suggestion and get back in a day or two.
>>>>If a keeper at the age why not just do it and know it's done?<<<<< well yeah Tom, its a tough and expensive job that i am not looking forward to. The timing cover might need to be replaced at a price. Just asking you guys for your opinion because i keep getting different opinions. The distributor position and fuel consumption seems to be a little heavy like its telling me something.


(This post was edited by chas on Jun 18, 2015, 9:13 PM)


Tom Greenleaf
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Jun 18, 2015, 10:49 PM

Post #4 of 7 (2582 views)
Re: 22re timing chain classic symptoms Sign In

OK - Not as good at this exact engine the "chain" jobs in general and OLDer stuff. Chain is great vs rubber belt IMO anytime BUT do wear some over time like a chain would. It could have covered up how it runs and made just better advancing timing.


Yes - may take extra parts not in a standard kit if some bolts break. What matters is if you want this for lots longer or just get by. This would be a good service to the thing for the long run. think new tensioner should be done or well known ok for this one. Should be on the slack side of how chain pulls and think it could be a hydraulic push to keep it just right. Symptoms might noise up to chain jumping time if too loose - may run or not if so an covering that with advancing timing is kinda cheating not the fix.


Take your time, clean any and all gaskets required and do it right the first time and be done with this. Chang out oil suggested even if fairly new now or when you do it or send it out.
This job really gets valve timing (not spark timing you can see and adjust) right and the engines love this. Have one of my own, older than this by a bit runs new now but know this is lurking somewhere in the future and dang you can't see that one till right there and by then easy to do that one - all different engine but they like the same things - being right.


With any machine/vehicle. You decide how much care you think it's worth putting into for the most bang for the long term buck. This is one if you want to keep it well the longest,


T



Hammer Time
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Jun 19, 2015, 2:06 AM

Post #5 of 7 (2579 views)
Re: 22re timing chain classic symptoms Sign In

You want to think twice before tackling this job., This is not your average timing chain job.

You have to remove the cylinder head and the oil pan and if it's a 4WD, you have to remove the front differential.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



chas
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Jun 19, 2015, 10:07 PM

Post #6 of 7 (2560 views)
Re: 22re timing chain classic symptoms Sign In


In Reply To
You want to think twice before tackling this job., This is not your average timing chain job.

You have to remove the cylinder head and the oil pan and if it's a 4WD, you have to remove the front differential.


chas>>>>>ok h, i'm hoping i dont have to go there but there are 2 flipsides to this. the first is remove the cyl head....i have read that removing the cover and doing the timing chain thing can be done without removing the cyl head. there is a bolt in a puddle of oil under the distributor drive gear in the cyl head... remove the distributor then remove the bolt under the distributor drive gear then the cover will come out or the timing cover will break when trying to remove it. whats your guys take on this


(This post was edited by chas on Jun 19, 2015, 10:10 PM)


Discretesignals
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Jun 20, 2015, 5:06 AM

Post #7 of 7 (2552 views)
Re: 22re timing chain classic symptoms Sign In

You can do it that way, but you'll probably end up with an oil leak. The proper procedure is to remove the cylinder head. While the head it off, you can send it to the machine shop and have it gone through.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Jun 20, 2015, 5:07 AM)






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