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98 taco ticking only when hot
Hello all. I have base model 98 taco,2wd 5speed its ticking only when it warms up real good, when I start it up every morning its fine, until it warms up.Dosent burn any oil between changes.Running synth oil. After it warms up it clickity clacks. 170k on the odometer.
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Is it clicking from the top end? Toyotas are known for valve tick. When was the last time the valves were adjusted?
:dj: |
Sounds like top end. No idea on when valves were or if they were adjusted, just got the truck at 165, 000. Why would it only do it when hot tho? It runs killer and gets 32 mpg. In the morning noise isnt there at all.
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Oil is thicker when cool. Either muffling the tick, or preventing it by being thicker when cool. What brand and weight oil are you running? Last time oil was changed, and by who?
A valve adjustment on a 2RZ or 5VZ is a little more involved than a 22R(E). Cams have to be removed and the valve bucket have shims. So you have to measure the clearance on each valve, and add/remove shims accordingly. Do your research before attempting, or get your wallet out if a reputable shop does it... |
Like was said, Toyotas usually have some tick. It's from a combination of injectors and valve train. So even if you get the valves adjusted, there still can be some tick from the injectors. Just giving you some realistic expectations to realize.
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Originally Posted by 98er
(Post 52150298)
Sounds like top end. No idea on when valves were or if they were adjusted, just got the truck at 165, 000. Why would it only do it when hot tho? It runs killer and gets 32 mpg. In the morning noise isnt there at all.
I highly advise checking valve clearance and adjusting as necessary. The 2RZ and 3RZ engines are known for burning a valve and/ or cracking the head from the valves getting too tight. See below link for instructions.
Originally Posted by rokblok
(Post 52150504)
Oil is thicker when cool. Either muffling the tick, or preventing it by being thicker when cool. What brand and weight oil are you running? Last time oil was changed, and by who?
A valve adjustment on a 2RZ or 5VZ is a little more involved than a 22R(E). Cams have to be removed and the valve bucket have shims. So you have to measure the clearance on each valve, and add/remove shims accordingly. Do your research before attempting, or get your wallet out if a reputable shop does it... https://www.yotatech.com/forums/f128...t-tech-226997/ :dj: |
man oh man I got under the truck today with it running sounds like it's coming from the bottom and actually upon further inspection. good old Jiffy Lube changed it out about a month ago and I'm running 10 30 synthetic, full synthetic.the motor is so small it was hard to tell where it was coming frm at first. Mabey piston slap? I appreciate the responses. should I be running regular crude oil?
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