87' 22R noise - Toyota Nation Forum : Toyota Car and Truck Forums

Darryl344 · 03-21-2005, 09:00 PM

I have an 87' toyota pickup 22R 2wd, I was trying to troubleshoot a ticking sound that has gotten noticeably louder over the last several weeks, I adjusted valves several times warm and cold, no help. I now discovered a rumbling sound coming from the lower back end. It is heard after the rpm is increased and then let off. Sounds like something is coming loose. Could it be a bearing or piston pin, and would it have anything to do with the ticking noise.

burger · 03-22-2005, 09:08 PM

how many miles on your truck?

Darryl344 · 03-23-2005, 02:09 PM

My 87' truck is nearing 200k, I've inspected the timing chain which appears good and tight and adjusted the valves serveral times, no luck. Will a bad valve cause the ticking noise?

Rycam · 03-23-2005, 06:27 PM

http://www.wheelingadventures.com/Tech/Fixs.htm

snowboarder2359 · 03-23-2005, 08:27 PM

mine use to do that and it was my timing chain. It could be a loose piece of metal in the catylac converter or something.

photojunky · 03-23-2005, 09:12 PM

If the ticking increases under load like going up a hill, it could need a valve adjustment. It worked for me on my 86 4x4. RIP

burger · 03-23-2005, 09:16 PM

I don't know... 200k .I doubt it is a wrist pin and it sounds like it could be a bottom end noise..Toyotas are tough but they do wear out sometimes.Valve tick is totally normal on 22r and re,a burned valve would'nt really make noise but a bent one might-did you make any substantial valve adjustments?

Darryl344 · 03-24-2005, 10:48 AM

I've adjusted the valves several times, expected the top end with the cover off, all looks good and tight. The noise is beyond the normal ticking, its loud enough to be annoying and sound like something is wrong, engine still runs strong. Your right about something might be in the catalytic converter, I replaced the exhaust manifold gasket hoping to quite the noise, maybe it's a piece of gasket material. I'll try adjusting it one more time this weekend.

alltrac165 · 03-26-2005, 10:24 PM

I have found that when you adjust the valves, it works better to do each valve individually than to do 4 at tdc #1 and 4 at tdc #4. If you adjust each valve when the cam lobe is exactly opposite the rocker arm contact point, it makes a world of difference. I adjusted mine about 4 times and it still sounded like a diesel until a mechanic friend of mine told me that trick. Nice and quiet now.
Of course, your noise may not be valves...

Darryl344 · 05-07-2005, 08:27 PM

Went back to try and adjust the valves again and noticed the timing chain was very loose. Looks like the chain damper is missing on one side, chain is starting to rub against housing. I had just checked the chain last time I adjusted the valves. Ordered timing chain and kit, now I have a known problem to fix, hopefully that will quiet it up. Also found one of the cam lobes worn. Looking for a cylinder head, man are they expensive.

ElmerFudd · 05-08-2005, 01:18 AM

If you want a replacement head look on ebay... there's all kinds of rebuilt ones on there.. you can get em with stainless valves too.

O.G. · 05-08-2005, 01:46 AM

Is your truck automatic why dont you check your torque converter bolts to the fly wheel

Darryl344 · 05-16-2005, 10:43 PM

No, its a manual,

Darryl344 · 05-16-2005, 10:47 PM

This weekend I replaced the cylinder head and timing chain. It is now much quieter but there still is a noise maybe not a ticking more like a knocking or tapping sounds like it might be coming from the bottom end, its hard to isolate the exact noise.

Toy Sport 4x4 · 05-16-2005, 10:55 PM

use a piece of pipe or big screw driver and listen to different points of the block and see where it is loudest at. You can also pull spark plug wires one at the time and see if the noise stops when the wire is off of that cylinder.