The 2.5 Swap Has Begun!

Hardwareman · Jun 28, 2008

Well instead of going to work today I decided to go ahead and swap out my engine because the old one is starting to misfire randomly pretty bad due to uneven cylinder compression I think.

Either way, I've definitely gotten my moneys worth out of that old engine. It has 360,000-370,000 miles on it and believe it or not still runs decent but don't want to break down anywhere you know? It's got oil leaking from the intake where the valve cover connects to the air cleaner assembly and also from the oil dipstick tube. Up top!

Basically a lot of high mileage engine problems plaugue this old motor so it's time for a swap. Here's the 2.5 pretty much cleaned up from the pressure washer and I'm about to pull the Ranger up to the garage to start pulling it.

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Allen

Hardwareman · Jun 28, 2008

Ok well as I'm waiting for the driveway to dry from the water I rinsed it with I'm posting up the progress so far.

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I pretty much have everything disconnected now and just need to crawl under the Ranger to unbolt the motor mounts, bellhousing bolts, and exhaust.

I'm just going to be using the 2.5 block as far as I can tell. Does anyone know if I can pull the engine without the tranny being out? Thanks

Allen

scotts90ranger · Jun 28, 2008

the engine can be pulled with the tranny being stationary, stick a ratchet strap over the top of the frame rails and under the tranny, hook the hooks to the bottom of the frame, that should suspend it just fine, that's what I did when I pulled my engine.

the top two bellhousing bolts are easiest from the top I believe, they're a pain no matter how you do it though... never tried it with A/C before, somaybe easiest from the bottom...

Hardwareman · Jun 30, 2008

Ok, well the motor is in! Thanks scotts90ranger!

I just started it without the accessories hooked up but made sure it had oil in it. It was knocking/ticking really bad so I'm hoping it's just because it's been sitting for a while and it will go away after driving it a bit.

I've got everything on except for the A/C compressor so wish me luck. I'll be back in a bit with more pics too! I'm wondering if I need the 2.5 computer? Thanks

Allen

Ranger44 · Jun 30, 2008

Pretty sweet!

Hardwareman · Jun 30, 2008

Here's some pics but I've got a serious problem here. The engine has a clack sound under acceleration and there is blow-by coming out of the oil dipstick tube pretty badly. What causes this?

It seems like there is too much crankcase pressure. How did this happen?

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This is what was on the 2.5 block and I replaced it with my temp gauge sensor.

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Looks pretty clean inside I must say.

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Tubular header.

What could be causing this problem? It seems like the engine is REALLY hot as well. The spout where the upper radiator hose connects to is different on these two engines. The 2.5 has two coolant temp sensors there and my 2.3 only had one. Problem? Thanks

Allen

4b316 · Jul 1, 2008

It sounds like ,if you have pressure coming out of the dipstick,that you are having ring blowby,cracked piston.How long did this motor set before you bought it?It may be just the rings are stuck.Try putting in some Marvel Mystery oil,alot of time,this will loosen up stuck rings.Do a compression test

Hardwareman · Jul 1, 2008

Sorry, I actually got it to stop doing that. It runs great now but I'm having another problem. I keep breaking timing belt tensioners. I think it's because I'm putting too much tension on the tensioner while I'm tightening it though. Should have it fixed here in a couple hours.

I found that my PCV valve was clogged and I had two plug wires crossed, which I'm assuming was causing the first problem. It's gone now.

Allen

4b316 · Jul 1, 2008

you don't need to put any pressure on the tensioner when you tighten it,just let it go against it

Hardwareman · Jul 1, 2008

Thanks 4b316, but after destroying two of them I did what you said and it's been fine so far. I have another issue now though.....again. Will it ever end? I'll start a new thread in 4-bangers.

Allen

The 2.5 Swap Has Begun!

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