'93 pickup burning oil, what to do? SWAP 7MGTE - Toyota Nation Forum : Toyota Car and Truck Forums

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post #1 of 8 Old 02-14-2017, 08:31 PM Thread Starter
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Question '93 pickup burning oil, what to do? SWAP 7MGTE

Hello all, I am a new user to posting but I have definitely done a great fair share of reading on here for some years now. You guys have really answered a ton of my questions without me even having to ask, and I sure appreciate it. However I have one question that I cannot seem to find the answer Im looking for. I have a 93' pickup 4x4 manual 3.slow i recently purchased (years prior i have also owned a '92 with same options) and it was a one owner 232,XXX miles and looks flawless inside and out (see pics below). It came with a whole book full of service records from purchase at day one. It has not had many problems but did have the head gaskets redone because of recall, and i followed the mileage on down the timeline. Well turns out the truck is burning oil. I am not sure how much, because this is my weekend or fun truck and I have not even put a thousand miles on it since I bought it 5 months ago. I understand the engine is probably about to retire, and I say all that to say this. I would rather do an engine swap than to rebuild or get a same model used engine. I have been reading on many different forums and I have even called a couple places but I have not got very far, in detail anyway. I am absolutely NEVER selling this truck, so I am willing to put the money in it. I would like to get a 7MGTE engine put in but I have no idea what that would require. Another option would be diesel, if that is at all possible. I have seen it done on forums and youtube but mostly just showing pictures no details. I am just waiting and doing research for now, thanks in advance for any advice.
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post #2 of 8 Old 02-14-2017, 10:48 PM
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Thats a pretty clean truck, good score.

If you havent done so yet, take a look at the YT engine swap section. Lots of different swapps have been done on these trucks and documented on there. https://www.yotatech.com/f159/

Why the 7MGTE or diesel? With you having the 3.0 already, the 3.4 will swap in pretty easy and then you can supercharge it if you are after forced induction.

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post #3 of 8 Old 02-14-2017, 11:08 PM Thread Starter
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Thank you, I believe I got a pretty decent deal on it only 2500 bucks. And thanks I will definitely take a look there and see what they have going on.

I chose those engines really for power and fuel economy. I haven nothing against the 3.4 but I've read they are prone to problems and have gasket issues. I'm really not looking for top speed but when I tow my bikes, one in the bed and one in the trailer, it is sluggish and I get the honor of getting mean looks on the road. Lol
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post #4 of 8 Old 02-15-2017, 11:56 AM
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Quote:
Originally Posted by jbshortridge View Post
...a one owner 232,XXX miles...turns out the truck is burning oil. I am not sure how much, because this is my weekend or fun truck and I have not even put a thousand miles on it since I bought it 5 months ago.
Before you go to all the trouble of swapping in a new (or used) engine I would first do a compression test. Could be it just has sticking rings - something that is simple enough to fix.

I have a just a few more miles on my V6 than you do and burn less than a quart every 3,000 miles.
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post #5 of 8 Old 02-15-2017, 12:16 PM Thread Starter
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Yeah you're totally right. Right now I'm just watching to see exactly how much oil it's loosing and I need to check. I know we did change oil thickness, so I was told just to keep a check on it for the next 1,000 or so miles. I would really hope for that to be the case, but eventually I know I'll have to rebuild or replace. Just trying to get an idea if that possibility arrives. As of right now i think it's good, just added a pioneer DVD receiver and am in the process of many other add ons. But I'm going to save money incase this motor does go. But I do need more power. That's a fact.
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post #6 of 8 Old 02-15-2017, 05:36 PM
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Quote:
I would like to get a 7MGTE engine put in but I have no idea what that would require.]
All you have to do is search, there's plenty of info on that on the interweb.

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post #7 of 8 Old 02-15-2017, 06:07 PM
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It's your truck and your money...
But those engines are darn reliable and do you actually know why it's taking oil? Is it external leak or internal blow by burn out?
External leaks are easy fix. It's normally valve cover gaskets.
Another normal culprit is main seal. You want to swap engine because of that?
Internal blow by is different animal, of course.
Usually, it's valve stem seals. Unfortunately, unless you are really good at this, head needs to be removed. They can be replaced without head removal but it's tricky.
Otherwise, it's collapsed or gunked piston rings.
Either way it's quite DIY doable.
But, as I said - it's your truck....

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post #8 of 8 Old 02-15-2017, 09:14 PM
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Quote:
Originally Posted by jbshortridge View Post
But I do need more power. That's a fact.
The factory calls for the timing to be set 10 degrees below top dead center. Bump it up to 12 or 14 degrees to see if that doesn't help.

Also check to be sure your TPS is with spec's.
http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml
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