Was bored....so I started cleaning parts

Discuss topics related to the CA18DE and CA18DET series engines.
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c-rad
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Since I have nothing to do while I am waiting to get my motor back, I started cleaning all my engine pieces lying around.... I finished the intake manifold yesterday....

I also did the turbo inlet, outlet, polished the CAS, cleaned the MAF, and some other stuff....


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Turbogixxer
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Very nice, what did you use to clean it?

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c-rad
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Turbogixxer wrote:Very nice, what did you use to clean it?
First I used some citrus-based degreaser, then an abrasive pad to get rid of all the dirt ground in, and then I painted it with aluminum cast finish. Makes aluminum parts look brand new.

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very clean I like it

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Turbogixxer
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c-rad wrote:
First I used some citrus-based degreaser, then an abrasive pad to get rid of all the dirt ground in, and then I painted it with aluminum cast finish. Makes aluminum parts look brand new.
ahhh, I was going to say you painted it, but you taped it off so good, so no over spray. Congrats.

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It's not very hard to get a good shine out of it with just a good cleaner, a decent wire brush, and some steel wool. That's what I use.

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c-rad
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Turbogixxer wrote:ahhh, I was going to say you painted it, but you taped it off so good, so no over spray. Congrats.
LOL, actually, I stripped the manifold bare... there were no sensors or anything attached. I am actually going to do sort of a hack job on it by leaving off the butterfly actuator and JB welding the rod in place so it doesn't move.

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float_6969
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You dolt, just leave it in place. It defaults open. It won't shut unless you put vac. to it!

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c-rad
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float_6969 wrote:You dolt, just leave it in place. It defaults open. It won't shut unless you put vac. to it!
I know....but I am trying to remove as much unnecessary stuff as possible. I hate clutter. I assume those two coolant ports on the end are just to heat up the air on a cold start? If so, those will just be left disconnected as well.

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which ones?

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c-rad
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The ones under the PCV valve.

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No, you need to hook that up properly. Those are for the turbo. If you don't hook them up right, the turbo won't cool itself like it should after you shut it off.

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c-rad
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float_6969 wrote:No, you need to hook that up properly. Those are for the turbo. If you don't hook them up right, the turbo won't cool itself like it should after you shut it off.
How do those have anything to do with the water lines to the turbo???

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those two go to the coolant lines to the turbo... they wrap around the back of the head and go into the turbo. Its odd, but its true.

Sean

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c-rad
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NeedCAforS13 wrote:those two go to the coolant lines to the turbo... they wrap around the back of the head and go into the turbo. Its odd, but its true.

Sean
Hmm....my motor didn't come with that line... Looks like I will using the turbo timer.

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where do your coolant lines go from the turbo?

Sean

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c-rad
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NeedCAforS13 wrote:where do your coolant lines go from the turbo?

Sean
I don't know. There was a banjo line coming off the block that was cut and crimped. And there was what looked like a 'plug' a couple inches under it. You can see here in this pic what I am talking about....


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the banjo fitting is the one on the front of the turbo, the one that goes into the backside comes from the intake side of the block

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That plug down lower is for bleeding air when filling the coolant. The upper one is for one of the coolant lines to the turbo. There should be another that leads behind the head and then ultimatly up to the back of the manifold, under the PCV valve. Then it will lead back out and down to the coolant line that runs under the manifold.

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And the way that this system works is that it helps the turbo to cool even more, than idleing it would. The coolant acts as a heat sink and works off of convection currents. As the coolant in the turbo housing heats up, it rises up to the back of the manifold (where the manifold acts as a heat sink for the coolant to pull the heat off of the coolant). As the hot coolant rises up the tubing, cooler coolant is drawn up behind it, which is heated, drawing heat away from the turbo, and the oil inside of the turbo. It's a very simple, but effective way to take one more step to preventing oil coking and damage to the turbo.

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c-rad
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float_6969 wrote:And the way that this system works is that it helps the turbo to cool even more, than idleing it would. The coolant acts as a heat sink and works off of convection currents. As the coolant in the turbo housing heats up, it rises up to the back of the manifold (where the manifold acts as a heat sink for the coolant to pull the heat off of the coolant). As the hot coolant rises up the tubing, cooler coolant is drawn up behind it, which is heated, drawing heat away from the turbo, and the oil inside of the turbo. It's a very simple, but effective way to take one more step to preventing oil coking and damage to the turbo.
Yeah, I know how a water-cooled turbo works.

But in any event, I do not have the piece that goes around to the other side, so there is no way for me to hook it up.

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rubber coolant hose? thats what i'm using... I'll post pictures that I took before I installed my motor. over a year later its still working fine

Sean

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Sean, I think he's only got one set of banjo fittings. It sounds like he's only got the feed side, and even that one is cut off and crimped.

Chris, I would still try and hook it up. You can get a set of stainless steel lines for the SR and they'll work just fine. If you do decide to ditch it, then you can just plug off the hole where the upper bolt is at in your picture. I would leave the "elbow" alone. I seriously thought mine was going to break off in the block when I was taking it off, and I don't think I'll ever mess with it again. There is also a small coolant line under the manifold, in the back, that you'll have to plug off too.

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c-rad
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float_6969 wrote:Sean, I think he's only got one set of banjo fittings. It sounds like he's only got the feed side, and even that one is cut off and crimped.

Chris, I would still try and hook it up. You can get a set of stainless steel lines for the SR and they'll work just fine. If you do decide to ditch it, then you can just plug off the hole where the upper bolt is at in your picture. I would leave the "elbow" alone. I seriously thought mine was going to break off in the block when I was taking it off, and I don't think I'll ever mess with it again. There is also a small coolant line under the manifold, in the back, that you'll have to plug off too.
Yeah, I don't have the lines....period. I think I may just block them off now while I am using the T25, but when I upgrade the turbo, I'll make some SS lines with some -AN fittings.


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