Toyota 22r cam chain tensioner . . .Is factory filter really better.
Recently I received some input from a few Toyota Owner Groups about the running an oversized filter on my 22r. I'd like a Conesus from the oil form on this issue. If these quotations are in fact correct then the 22r owner who run non factory filters & especially oversize non factory filters are putting undue stress and wear as mentioned in the quotes. Is there an non oem filter that has the dual pressure valves??? If this is in fact true keeping the oil pump primed would be far more important than running a oversize filter or supposedly better filter Ssuch as a Pure ONE etc.
Thanks,
Crusader
Recently I received some input from a few Toyota Owner Groups about the running an oversized filter on my 22r. I'd like a Conesus from the oil form on this issue. If these quotations are in fact correct then the 22r owner who run non factory filters & especially oversize non factory filters are putting undue stress and wear as mentioned in the quotes. Is there an non oem filter that has the dual pressure valves??? If this is in fact true keeping the oil pump primed would be far more important than running a oversize filter or supposedly better filter Ssuch as a Pure ONE etc.
Thanks,
Crusader
Also a prior post form the Oil Form :quote:
The bigger filter is no upgrade. the factory oil filter has dual pressure valves to keep oil pressure up when the engine is off. Test for yourself - shut off the engine with anything other than an o.e. filter on it then wait 15 minutes and remove the oil filter, then try it with an o.e. filter and see the difference. The other filters will come off with almost no mess (oil has all drained back into the pan) the o.e. one will make a mess (because it is retaining the oil in the passages) The filter you want is a 08922-02011 or 90915-yzzd1 or 90915-yzzb1 - black filter, says Toyota on the side, comes in a red box - any of those 3 will work the same.
Try running an o.e. oil filter. The 22r is very sensitive to a good filter and any of the cheap ones (especially fram) can trash the timing chain. I suspect that you are hearing the timing chain being tensioned as the oil pressure comes up.
re: TIMING CHAIN there is no spec for replacing the chain except for wear. When you have the valve cover off to adjust the valves (every 15,000 miles)
look down the front chain housing for a broken upper guide and look down low for scoring on the inside of the timing cover (behind the waterpump) if the chain is bad enough it can wear thru the cover and drain your coolant into the crankcase!!
quote:
Chris142
Member
Member # 1614
posted June 07, 2003 01:48 PM
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There is one drawback to using a larger filter. The timing chain tensioner in the 20r,22r and 22r-e is fed by oil pressure.
The filter on these engines is mounted with the threads lower than the endcap, not much but slightly. This will allow the filter to drain back if the drainback valve doesn't work properly.
When the truck is started the un-tensioned timing chain whips around untill the filter fills with oil and pressurizes the tensioner.
In the meantime the timing chain is flying around in the timing cover, this breaks the runners. Once the runners break the chain wont tighten and will eat through the aluminum cover or allow the chain to jump which bends valves.