21 replies to this topic

[jdlc]

Shortly after hitting 200k miles, our V70 NA started to make whining noise in the front engine area. Noticed the top was not getting oil, a clear sign of sump pump issue.
Just the same, I removed the serp belt to rule out other possible cause, and the noise was still there. Also checked t-belt area and both rollers and the water-pump checked-out fine.

There was no oil pressure light, which was surprising as the top was barely getting any oil.

I've done sump pump seal replacement before and it's not fun.
So instead, I'm thinking of swapping the engine from the GLT because:
- GLT has fewer miles and has tan interior
- already done the RMS, as well as PCV, and t-belt in the last 10k of the GLT
- LPT as it is, GLT's still turbo and pulls stronger than NA
- I need to get rid of one car anyway as we're actively looking for a car for my wife
- wagon is very useful in hauling stuff, and V70 is generally in better shape than the GLT (black leather interior, with R-panel, alum door sill, rear cup holder & map pocket)
- Got it new and kids grew up with the V70, it has loads of sentimental value - latest mission was trip to NYC to send off first college child in America!
- it sounds like a cool project to do : )

I checked the NA and found two wire connectors meant for turbo cars that have blank connectors - one for the baro sensor near windshield washer tank, and the other meant for TCV but I can't seem to find any connector for the PCT nipple. So I plan to do a simple experiment on the GLT to find out if that would matter by disconnecting it and see if CEL would come on, but I doubt it will. Hopefully, I can use the NA wire harness.

Am I missing any other turbo connection to check on my NA if it's present?

I also notice the different fuel line set-up - so swap will include fuel line system to some degree.

I'm beginning to browse the na to turbo thread in here and it seems to lack detail.

I hope I can document the swap and do my own write-up but no promises as it's hard to do that working solo : )

Any feedback/tips is welcome.

[thesameguy]

My gut tells me that given the generally low values of these cars, you'd be better off selling both of yours as a package deal and buying one V70 turbo to replace it.

However, if you can afford to be off the road for a month, I can't think of any immediate reason why you'd have any real problem. The powertrain is essentially self contained right up to the computers. Swap the wiring harnesses out with the motor and you should be golden.

[jdlc]

Thanks for the response.

Between my wife and I, we have three vehicles The one I'm planning to get will be the 4th, hence one has to go.
So before I do this, I'll have two vehicles rolling.

The wiring harness swap is definitely an option, but maybe I don't have to? I can only find the pct plug missing, unless I'm not aware of other connection unique to turbo car, other than baro and TCV plugs which I seem to have already.

Harness removal somehow intimidates me, I'm concerned I might break something and end-up with electrical issue once done with the swap.
I'm thinking I can do harness swap as last resort after motor swap if NA harness would not work.

[thesameguy]

Speaking totally out of theory, having never actually removed the wiring harness, my understanding is that it's not that big of a deal. When you pull the engines you, you're going to be faced with a choice of whether you remove the harness from everything and let it dangle in the car, or pull the harness with the engine by removing it from the ECU box. When I pulled my engine, I did the former, but I've read several people indicate it's easier to do the latter. In both cases, though, you are going to be doing a substantial amount of futzing with the harness. Assuming I'm correct about how it works (I think Keaton85 has good knowledge of this), given your particular circumstance, you are going to save time and minimize error and variables by just pulling the harness out with the engine. You're going to end up with a dead hulk of a car (the engineless GLT), so there shouldn't be any real harm in totally butchering it.

[jdlc]

Makes sense.

Although in the interim, looks like I can try to do pan o-rings fix as Boxpin in this thread http://volvospeed.co...ng-replacement/ makes it sound easy (did it before without raising the engine and it was a pita).

I might reserve my swap job when a good 98 c70 body comes along : )

[optimus prime]

Maybe try contacting a member on here that goes by the name Tech. Hes done a turbo engine into an NA car oh and theres a few threads on here about it too.

[jdlc]

This project is on.
Reason: I dropped the pan on our V70 to replace the sump-pump o-ring with a breeze after following Boxpin's lift the engine tip here: http://volvospeed.co...ng-replacement/ . Howling sound went away for a while but came back - definitely caused by oil starvation because I can see now how oil on top of the engine is splashing like crazy, whereas it was barely getting any oil before. I can only conclude damage have been already done to the index bearing of the cams.

We just got a clean 06 S60 2.5T for my wife, and I can drive my gas guzzling expedition to work, so I can work on the motor swap from my dd 98 GLT into our V70 at my leisure with no pressure to finish it pronto.

I checked my GLT and the PTC connector can be removed without tripping cel; as I stated, the NA has the baro and TCV connector already and both are blanked out. The only other difference is the fuel supply - I'll take a closer look when I get a chance.

[phunktified]

[Keaton85]

You top end wouldn't be damaged. Those areas don't need much oil as there is hardly any load on the surface. Main or rod bearings are the only areas I would worry about in this situation. You will find out soon enough though...

[jdlc]

It could be anything - lots of members complain of similar noise in this link http://volvospeed.co...g#entry2080183. Like Hussein (for a different reason), I don't have oil thermostat because this is NA so that's out of the equation.

At any rate, great excuse to try to do this!

Maybe try contacting a member on here that goes by the name Tech. Hes done a turbo engine into an NA car oh and theres a few threads on here about it too.

I thought I saw that thread too, although didn't pay much attention to it at the time.
Linky?

[phunktified]

Linky?

Linky

[jdlc]

Linky

Thanks.

Got a 2-ton HF cherry picker today on Craiglist.

I checked the fuel lines of the GLT and the NA and the difference should be easy to reconcile.
The PCT plug is not an issue - I left the GLT unplugged and did not caused any issue whatsoever.

Just need time and a couple of buddies for one good weekend to do this!

[jdlc]

Started the ball rolling on this project - el solo so would take a while : )

I'll attempt to do the swap without disturbing the functioning AC system on the V70.

The V70 power steering system stays with the car too (no leaks, fluid is super clean as I regularly replace it by turkey basting method).


I'm almost done isolating the GLT motor (exhaust, cooling hoses including heater hoses, electrical including o2 sensors, vacuum connectors, AT cable, TB cable, etc) and just need to disconnect the fuel lines, the axles, and the front support on the day of the actual swap.

I managed to uninstall the AC compressor on the GLT with the AC lines still connected and able to untangle the motor harness.
I'll just cut the NA motor harness on the destination V70 as it's a PITA to free it from that tight spot - I'll use the GLT harness anyway.

By the time I ask a favor from a friend, I will just need help lifting the engines and do the actual swap - then I'll take it from there assembling it back.

I think I'll need 2-3 weeks including two weekends before I can finish this, considering days are shorter now and there's only a little daylight by the time I get home from work on weekdays.
I'm doing this on our driveway, so hopefully I'll be done before it gets cold.

While the GLT motor is out, I plan to replace the turbo coolant rubber hose, 6842190, the sump pump o-rings, and 'service' the AC compressor clutch.
T-Belt, breather box (PCV system) and RMS have just been done around 10k ago. The alternator have new brushes as well and the bearings are still good. I have a low-mileage starter that I can install and diy cooler lines are also around 10k/1 year old. The turbo has very minimal shaft play, and the IC hoses are dry - all good signs!

[jdlc]

Got the motor in today! I did it pretty much by myself except for a couple of times I asked my wife to watch if anything is getting caught while I was lowering the motor.

I'll spend the coming week(s) after work putting it all together (vac lines - some of which I replaced already with silicone hoses while the engine was out, axles, cooling lines, oil and ATF coolers, fuel lines, etc).

Installed the IC already in between the AC condenser and the newish Nissen rad before dropping the engine in. What a PITA to do alone as the welded nuts on the car for rad fasteners were both gone due to rusted bolts - took some patience and creativity do do it. I also installed the heat shield from the GLT into the V7A NA before the engine was installed.

Another thing that gave me a hard time was the GLT ps axle nut - I managed to break a driver trying to loosened it (I have no impact tools). I just gave up and cut it, lol.

The next challenge will be the fuel line which is not the same for the two cars - GLT has two lines that runs on top of the engine while the NA has only one.
This is not going to be a big deal, worst come to worst, I'll drop the tanks and just swap them but I don't think it will come to that.

Cheers!

[jdlc]

Progress so far: got most things connected back.

What remains:
- exhaust (cat and catback)
- fuel line

Weather permitting, I should be all set by this weekend!

[phunktified]

nice progress, looking forward to the result here. . weather has been a pain lately, too much rain, my swap project is sitting outside also, almost ready to clean out the shed so I can push it in .. ha!

[jdlc]

It's alive! Fired right up first try : ).

Took me 3 weekends, plus number of after-hours and some mornings - solo for the most part.

So, to be clear, this is 98 to 98, and these are the differences:
- the engine harnesses are different, and of course, that of the Turbo was used, disconnected under the ecu box
- Turbo needs baro sensor connector near the windshield washer tank area (purple connector) - my 98 NA is pre-wired for it (you need this Baro sensor)
- Turbo needs TCV electrical connector, again, my 98 NA is pre-wired for it
- Turbo has electrical connector for the PCT, and it's non-issue since the Turbo engine harness came with it
- Turbo has ambient temp sensor (blue connector under the front bumper, passenger side), the Turbo engine harness came with it (you need this ambient temp sensor)
- Turbo has extra vacuum line behind the engine connected to the fuel regulator 'system' (the other end connects to one of the nipples of the air intake)
- exhaust systems (cat and catback)
- turbo has (stock) intercooler sandwiched between rad and AC condenser

Fuel lines: the differences are easy to reconcile in my case, but I'm not sure if this applies to other year models (850s), it's just the location of the regulator, so I simply run a hard plastic vacuum hose towards the back near the fuel filter where the regulator is of the NA. That is, I utilized the regulator of the NA. I didn't need to cut the fuel line and instead decoupled them in the compression coupling.
This was after I studied them carefully. In the end, the vacuum line originally connected to the NA fuel regulator near the fuel filter had to be plugged up (it branched off the large hard-line EVAP hose) as vacuum for it will now have to come from where the Turbo regulator was once getting it from - they are about 4 feet from each other so I needed to use a vacuum hose of same length to connect them .
I'll try to take a picture and post it here when I get a chance.

Last words:
The turbo engine must come with everything - Turbo, IC piping, TCV, Baro sensor, ambient temp sensor, air-box, air-intake, etc.
Ideally, the donor car should be accessible, so turbo engine set-up can be observed. It will be a lot more challenging otherwise.

Thanks for those who tried it first. And no, I'm not doing it ever again, lol.

So, booyah!

[98glt-5]

Awesome dude! One of the few people that actually said they were going to do it and came through!

[andyb5]

Awesome work, glad to hear it fired right up!

[volvoskiah]

Knew you could do it! Good work