22R engine model and PCV valve
06-25-2015, 02:56 PM
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22R engine model and PCV valve
Hi
I just bought an 83 toyota pickup which has been off road for 4 years and has seen some wear. It has a newer engine in it with 60K miles. I needs a PCV valve (among other things). The one that was in it is broken and in an case, was hammered to fit
So -
1. How can i tell how old my engine is?
2. What PCV valve should I look for? The hole on the valve cover is very close to 3/4". The hose is 1/" ID, 1/2 OD
fierat of many questionns, no doubt.
thankyou!
I just bought an 83 toyota pickup which has been off road for 4 years and has seen some wear. It has a newer engine in it with 60K miles. I needs a PCV valve (among other things). The one that was in it is broken and in an case, was hammered to fit
So -
1. How can i tell how old my engine is?
2. What PCV valve should I look for? The hole on the valve cover is very close to 3/4". The hose is 1/" ID, 1/2 OD
fierat of many questionns, no doubt.
thankyou!
06-25-2015, 06:50 PM
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84 and older motors are one style. 85 and newer is the other style. For each style the blocks are the same for the style they are. The quickest and surest way for me is if it has a place for a fuel filter and a knock sensor on the passenger side it is 85 or newer.
Looking at the exhaust ports is another way. If round I believe it is 84 or older. If it is pear style 85 and newer. You can go by the valve cover but that is easily switched so I dont really count on that.
Looking at the exhaust ports is another way. If round I believe it is 84 or older. If it is pear style 85 and newer. You can go by the valve cover but that is easily switched so I dont really count on that.
07-06-2015, 08:23 PM
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As stated above the grommet gets old and brittle with age. When removed it can fall into the valve cover and cause minor havoc. Just something to watch out for.
07-07-2015, 08:22 AM
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Any parts store should be able to look up the appropriate PCV valve for you. All 22R/RE engines use the same PCV valve and grommet.
As far as engine age, do you mean year or how many miles are actually on the engine? For miles, there is no way of telling without an accurate and reliable paper trail of the engine build. To me, mileage is irrelevant - it's all about wear. A properly built and maintained engine could have a 100K on the clock and still look good while an improperly built and maintained engine could have 5K on the clock and worn out bad. Follow me? For the year, Toyota did some funky random changes from year to year on their engines and those changes also vary by model (pickups, celicas, coronas, etc). If you are going to do any major engine work it is mostly important to know what head you have. If you have round exhaust ports then your head is between an 81 and 84 and since a 81-84 head is only compatible with a 81-84 block then your block would be a 81-84 as well unless somebody did a stupid amount of machining to fit it to a 85+ block or went completely counter productive and put it on a 20R block (the 20R/22R hybrid has a 20R head on a 81-85 22R block). Also if you have the head off, dished pistons started in 85 - anything 85+ is compatible. On the 85+ blocks there is a block identification in the middle of the exhaust side just above the oil pan and behind the engine mount that would say "LASER" on it. Supposedly, Toyota stopped using single row timing chains in 1982, but I have a 1983 with a dual row and I rebuilt a friend's 1984 22R that had a dual row chain - both engines were factory built and never broken open or rebuilt until I touched them. That's one of those things that I never understood about Toyota's consistency in engines from year to year.
Hope that helps.
As far as engine age, do you mean year or how many miles are actually on the engine? For miles, there is no way of telling without an accurate and reliable paper trail of the engine build. To me, mileage is irrelevant - it's all about wear. A properly built and maintained engine could have a 100K on the clock and still look good while an improperly built and maintained engine could have 5K on the clock and worn out bad. Follow me? For the year, Toyota did some funky random changes from year to year on their engines and those changes also vary by model (pickups, celicas, coronas, etc). If you are going to do any major engine work it is mostly important to know what head you have. If you have round exhaust ports then your head is between an 81 and 84 and since a 81-84 head is only compatible with a 81-84 block then your block would be a 81-84 as well unless somebody did a stupid amount of machining to fit it to a 85+ block or went completely counter productive and put it on a 20R block (the 20R/22R hybrid has a 20R head on a 81-85 22R block). Also if you have the head off, dished pistons started in 85 - anything 85+ is compatible. On the 85+ blocks there is a block identification in the middle of the exhaust side just above the oil pan and behind the engine mount that would say "LASER" on it. Supposedly, Toyota stopped using single row timing chains in 1982, but I have a 1983 with a dual row and I rebuilt a friend's 1984 22R that had a dual row chain - both engines were factory built and never broken open or rebuilt until I touched them. That's one of those things that I never understood about Toyota's consistency in engines from year to year.
Hope that helps.
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