Are they different for 4 and 6 cyl cars?? I just put a 6 cyl into my 4 cyl car and the hoses down at the bottom of the engine compartment don't line up with the coolant tubes. The driver's side looks like the 6 cyl tube must be shorter as the hose I bought runs parallel to it for almost a foot. On the driver's side it looks like the hose I bought is short. Or, did they give me the wrong hoses??

Thanks...

I'm just glad to finally have the thing sittin in the car...

Mike

I don't think they're different from L4 to V6, but they are different from year to year based on where the heater core loop return leg connects and the '88 is totally different due to suspension changes.

JazzMan

Thanks. I looked at hoses for a v6 for both 85 (engine is 85 v6) and for 87 (car is an 87) and they show the same numbers for both years.

I am almost positive they are differant, but not sure where. I will look it up i nthe 22P when I get home.

The drivers side coolant pipe is shorter on the V6. You will have to either swap that pipe with one from a pre 88 V6 car, or shorten the existing 4 banger one. If you shorten the one on the car, be sure to file the edge where you cut so that it can't shafe through the hose. Also you should double clamp it in that scenerio because you will loose the flared end to ensure a positive lock with the hose clamp.

The passanger side is the same whether the car is a 4 or 6 cylinder. If your hose isn't lining up on the passanger side you either have the wrong hose, or the hoses on the wrong side.

EDIT the above paragraph: X-mas party + 5 am = I screwed the pootch on this answer. I'll try to rectify it in a post below.

EDIT: yes, there are different coolant pipes listed for the Fiero's like others posted, but what I typed up is basicially a condensed version of what you need to know to make your swap work.

[This message has been edited by jelly2m8 (edited 12-19-2004).]

There are 4 part numbers listed for the L side and 4 numbers listed for the R side, depending on the year and engine the car has. I have no ides what the differances are though.

jelly2m8

I still have access to the 85 the motor came from so I will probabaly go and get the driver's side tube from there. Sure does look easy enough just to cut the current one off though. I may just have the passenger side hose pointed the wrong way when I installed it when the cradle was still out of the car. That may be why it looks short. I finished getting the cradle mounted just about dark yesterday and these were my first observations.....

As far as the heater hose outlet -- there is a tube that runs on top of the passenger side frame rail that ends up right behind the engine in the 87. It has a hose coming off of it. I was assuming that this is the hose I would mount to the heater hose outlet on the 85 engine?? If not, any idea what this pipe/hose is for?? I had a good handle on what went where until I had a huge interruption/delay in getting the 85 v6 in the 87. The delay was called Hurricane Ivan The engine, cradle, etc., were all buried under stuff that I crammed under the carport when getting ready for the storm. I originally had everything laid out and organized so that I could rememeber what went where. That all got messed up as we had to shuffle everything around to get ready. I am only now getting stuff back to being somewhat organized.

Also, I have a black hose -- looks like a water hose and has the presure clamps on either end (instead of the screw type radiator clamps). It's about 3 feet long. I trhink it came from the 85. Any idea what it;'s for??

Thanks much.

quote Originally posted by mbramble: As far as the heater hose outlet -- there is a tube that runs on top of the passenger side frame rail that ends up right behind the engine in the 87. It has a hose coming off of it. I was assuming that this is the hose I would mount to the heater hose outlet on the 85 engine?? If not, any idea what this pipe/hose is for?? I had a good handle on what went where until I had a huge interruption/delay in getting the 85 v6 in the 87. The delay was called Hurricane Ivan The engine, cradle, etc., were all buried under stuff that I crammed under the carport when getting ready for the storm. I originally had everything laid out and organized so that I could rememeber what went where. That all got messed up as we had to shuffle everything around to get ready. I am only now getting stuff back to being somewhat organized. Also, I have a black hose -- looks like a water hose and has the presure clamps on either end (instead of the screw type radiator clamps). It's about 3 feet long. I trhink it came from the 85. Any idea what it;'s for??

I edited my post above, I messed up, my explanation is there. I'll try to get you back on the correct track on getting your coolant system completed with this post.

I totally fugged up about the 4cyl car heater routing.

Yes you are correct. Disregard what I had posted above about that and the water pump. Leave that heater pipe in there along the passanger side frame rail in the engine bay in your 87. Leave the pipe nipple in the water pump on the motor also. You can connect that waterpump fitting to the heater pipe by using the rubber connector hose from the V6 donor car.
To do it the way I had metioned you would have to source out the bulkhead connector pipe from a 87-88 V6 car, that's extra work and $$ you don't need to do when what you have will work just as well.

The 3 foot long pipe you have with the crimped connectors on the hose sounds like the frame rail connector pipe from the 85 donor car, that pipe is already in your 87. ( It's routed differently up front betwenn the 2 models, but you don't need it.)

It looks to me like I would connect the pipe going along the engine bay frame rail to the pipe fitting coming oof the water pump, as you say, with the hose from the 85 donor car. It then looks like I need to block off the pipe coming off the front side of the thermostatt housing. Looks like it went to the heater pipe on the 85, but as you said, on the 87 car that pipe is teed off from the undercar, passenger side coolant tube. I just need to figure out how to block off that hose and keep it from leaking. I should be able to take care of that with no problem. If you have a chance, I have a few other questions regarding things that appear to be different from the v6/L4, 85/87 swapping. I have posted some photos on my web sites with questions about them below. Any help would be most appreciated....

1. http://www.bramblett.com/fiero/img_1333.jpg OK, this is just a confirmation of the above. This is the pipe I think I need to block off. It went to a heater pipe on the 85. That pipe is teed to the passenger side, under car coolant tube on the 87 so this water line is not needed...

2. http://www.bramblett.com/fiero/img_1334.jpg OK, continuatioon of the above. This is the pipe (in the 87) that comes from the other under car heater pipe. I will connect from here to the pipe nipple coming out of the water pump.

3. http://www.bramblett.com/fiero/img_1335.jpg Finally, new topic There appears to be a fitting under the air filter box that came from the 85... If that's waht it is, where should it be connected to??

4. http://www.bramblett.com/fiero/img_1336.jpg This comes from, I think the gas tank of the 87. At least it comes out of the firewall where the gas tank is and I think I had to disconnect it to get the tank out of the car to swap out the fuel pump. It doesn't connect to the pump, but some sort of vent or something?? I have no idea where to hook it up on the 85 motor.

5. http://www.bramblett.com/fiero/img_1337.jpg I have no clue where this hose goes. Seems like from photos I took (not very detailed, in this area, unfortunately) that it goes to the firewall somewhere on the 85. No clue what tro hook it up to in the 87. In the photo, I just have it looped arond and you see both ends, the free end and the end hooked up to whatever that gadget is there.

6. http://www.bramblett.com/fiero/img_1338.jpg Is this where the PVC valave is connected to??

7. http://www.bramblett.com/fiero/img_1339.jpg You can barely see the rubber grommet in the front valve cover but does this pipe connect there?? What goes in this grommet?? There was nothing there when I got the 85. Just a bare pipe and an empty grommet. Looks like a second PCV valve setup....

8. This I forgot to get a photo of but can do so tomorrow.... The lines from the auto tranny to the radiator.... There are two lines coming out the passenger side of the tranny -- one over the top of the other. There are two lines coming from the radiator -- one points down toward the ground and tghe other seems to curve around and point back towards the fronmt of the car. Any idea what gets connected to what?? I THOUGHT there were 3 hoses that I removed but I have only found two -- one a few inches long and the other about a foot long. Not sure that I'm just not missing something altogether here. Or is it just an oil output from the tranny to an input to the radiator and out the radiator back to the cooling oil input of the tranny???

Any help is MOST appreciated. Yea, the engine is in the car !!!!!! man, it went in easy.. (knocks on wood)

Thanks,
Mike

Yes, seems I have you confused good.

Disregard what I have posted above for the heater hoses. On the length of the drivers side radiator pipe, yes that is too long on the 4 cyl car and will need to be either shortened or replaced with a V6 one.

There are 2 ways to hook the heating lines up correctly. First would be to remove that passanger side pipe on the frame rail and replace it with the proper pipe for a 87-88 V6 car. The second would to be to cut that pipe on the bulkhead at it's highest point, or removing the pipe at the quick connect fitting down low at the bottom of the engine bay and then use heater hose to connect it to the thermostat housing on the V6 engine ( what you have circled in pic #1 ). Then remove what's left of that pipe from the engine bay and frame rail. For either of these you will need to remove the nipple fitting from the water pump and stick a pipe plug in there.

I think that by using the existing pipe on the frame rail and modifiy the connection to the under car heater pipe it would be more work, also that would route the coolant through the heater core backwards. This would work, but would also chance creating an air pocket in the heater core, which you don't want. So let's forget the earlier discussion of connecting the water pump to the frame rail mounted pipe.

The outlet from the heater core on your 87 is that pipe / hose that connects to the passanger side radiator pipe. This you can leave as it is.

Pic # 2, you'll end up removing that pipe, or a part of it.

Pic # 3 This is the air feed fitting for the EGR sensor. The V6 cars have a series of tubes bolted to the bulkhead. The fitting in pic 3 hooks to the smaller of the 2 bulkhead pipes, the hose in pic # 5 connects to the other end of the pipe. Pic 3 and 5 eventually get connected.
Some people don't bother to connect the hose from the EGR sensor and leave it open to the atmosphere inside the engine bay. This may not be any worse than having it hooked up as the feed fitting on the bottom of the air filter canister as it draws unfiltered air with the stock setup. You can decide which is the worse of the 2 evils for yourself.

Pic 4 looks like the hose for the brake booster, it gets hooked to the pipe in pic 7.

Pic 6, yep that goes to the PCV valve, there is a moulded rubber elbow that holds the PCV valve and connects to the plastic pipe. The end of the PCV valve sticks in the rubber grommet in the valve cover. if you don't have this piece, i will send you one, it's the least i can do for confusing you.

Pic 7, that grommet in the valve cover is where the breather tube plugs in. There is a 8 inch or so steel pipe that connects that grommet to the air boot between the air filter canister and the throttle body. I have these parts too if you need them.

8, there are only 2 hoses to the transaxle. The short one with the 180° bend in the steel pipe connects to theupper fitting on the transaxle. The longer one gets looped through a small bracket on the end of the transaxle and connects to the bottom fitting. it is looped to prevent the cooler lines from draining back into the transaxle wihen the engine is off.

I appoligise for mis-guiding / confusing you earlier. Sorry!

jel

Thanks !!!

Ok, I think I have the heater hose situation scoped out and will use your first way and remove the passenger side pipe from the frame rail, etc. I was just up looking at the other car and see what you mean.

Pic #3. I pulled the tubing off the bulkhead from the 85 car this afternoon. I will install it tomorrow and get some new tubing for the connections. Thanks!

Pic #4. Yep, it's the brake booster feed alright. Thanks.

Pic #6 Let me look thru all my junk and see if I have that elbow. If not, I'll let ya know and send you my address. Thanks much for the offer. Makes me feel much better after finding that the ECM I bought from somone off here is not the right one. Well, I have the manual tranny ECM and will use that to make sure the motor is gonna start and run before worrying about finding the right one.

Pic #7. Yes, I do have the metal tube. It's still connected to the air boot which I haven't seen for a couple months!! Found it today and the pipe is there. Now, I remember it fitting in that rubber grommet.....

8. I think what threw me was that long piece of hose to make a 6" connection. I think that's why I was thinking there was a 3rd connection somewhere at the end of that long hose.

Thanks very much for the information. I ain't toof far from trying to start this beast up.
Mike