First gen 4R 88 22RE MT W56 sound

[SomeDay]

I bought a first generation 4R 88 22RE Mtrans W56 a couple of weeks ago.
I have all the service documentation for the first 80000km (50000 miles), but I don't have any idea what the previous owner did (service) after that. I brought it home with 160000km in the odometer (100000 miles). Please, can you watch the next video and tell me how the engine sounds? What do you think? Does it sound good? What should I check or replace to prevent future failure for (the previous owner) lack of mainteance?

 

[KidVermicious]

I hear valves. Very common in the 22RE, getting the valve lash right is a bit of a trick. I also hear a whisper that could be an exhaust leak, could be a timing chain rubbing on the guides, or could be nothing at all.

Change the oil right away. If it's black or sludgy go to a 500 or 1000 mile OCI with a quality top shelf oil for a couple intervals, and push it out longer as the oil starts coming out cleaner. Make sure the timing is good, then pop the valve cover and lash the valves - you need to do them when the engine is hot and it's hard to get them all done before it cools down, I like to warm up the motor and do one side, then put it all back together and heat it back up before doing the other. Any other way and I always get chattery valves. While the valve cover is off, have a good hard look at the timing chain guides (down the front of the motor, inside the timing chain cover), and check the slack in the timing chain. If the guides are busted or there's too much slack in the timing chain, you need to pull the cover and service the timing chain right away, don't keep driving it or you'll wear a hole in the water jacket and you'll mix coolant and oil and you will not be a happy camper.

That's what I'd do with a new-to-me 22RE with an uncertain history, anyway.

 

[SomeDay]

I hear valves. Very common in the 22RE, getting the valve lash right is a bit of a trick. I also hear a whisper that could be an exhaust leak, could be a timing chain rubbing on the guides, or could be nothing at all.

Change the oil right away. If it's black or sludgy go to a 500 or 1000 mile OCI with a quality top shelf oil for a couple intervals, and push it out longer as the oil starts coming out cleaner. Make sure the timing is good, then pop the valve cover and lash the valves - you need to do them when the engine is hot and it's hard to get them all done before it cools down, I like to warm up the motor and do one side, then put it all back together and heat it back up before doing the other. Any other way and I always get chattery valves. While the valve cover is off, have a good hard look at the timing chain guides (down the front of the motor, inside the timing chain cover), and check the slack in the timing chain. If the guides are busted or there's too much slack in the timing chain, you need to pull the cover and service the timing chain right away, don't keep driving it or you'll wear a hole in the water jacket and you'll mix coolant and oil and you will not be a happy camper.

That's what I'd do with a new-to-me 22RE with an uncertain history, anyway.

Thank you for your advice.
I checked this morning and yes, you're right, the exhaust leaks, you have very good ears. Another item in the todolist.
I have to read and ask even more before lash the valves, you'll know when I start with that.
I'm not driving the 4R at the moment, I need to work in the breaks and the suspension also, before the technical inspection. I just start the engine for 5 minutes when I'm working on it. I plan to have it ready in 1 year.

Thank you for your help.

 

[RAD4Runner]

Overall, it sounds good but yes, do al the necessary maintenance. I need to learn how to do the valve check, too.
Best of luck with the restoration.

 

[SomeDay]

Overall, it sounds good but yes, do al the necessary maintenance. I need to learn how to do the valve check, too.
Best of luck with the restoration.

Thank you.
The restoration's going to take me time, I'm in learning process at the moment. I expect to finish in 1 year, but I can wait more if it's necessary.