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Discussion Starter #1
Alright guys, let me know if I’m missing something here. Running into some clearance issues with the valve cover/coil bracket combo I wanted to use on my LS swap (LSX B15 comes with tall style VC’s ). Flipping the wiper motor upside down seems like it would be an easy way to fix the issue. It lines up perfectly with the linkage and it seems like it would be easy to throw some riv nuts into the firewall. I wouldn’t have to weld up the hole as I would if I moved it over to the left either.

The motor just rotates in circles, so I don’t think it would affect anything. Only issue I foresaw was the resting position would be differeNt , but I’m thinking that could be easily fixed by welding up the old slotted hole in the linkage and adding a new one clocked correctly so the wipers sit in the cowl when the motor is on the off position.

man in missing anything here that would make this harder than I am anticipating? I’ve seen plenty of guys shift it over, but never flipped so it’s making me a little nervous that I’m missing a potentially hard to fix issue.
 

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Flipping it will work, but you'll need to flip the short offset arm on the wiper motor too else your wipers will "Park" in the up position :). The nut is an oddball (M7x1.0 if I recall) so don't loose it! It's keyed with a pair of parallel flats so you should be able to just flip it 180 and put the nut back on.

In other words, loosen the nut on the wiper shaft, remove the wiper motor assembly, flip wiper motor assembly 180 and re-assemble the nut on the shaft with the bracket in the same position.

Make sense?
 

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The 2nd picture is a bit blurry, but it looks like you've already removed it as I suggested. Just make sure you flip it pretty close to 180 degrees - any amount you're off will effect where the wipers park.
 

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My personal experience, you can't flip it over and reposition the arm.
If you watch the action of the motor when it parks, it will become apparent.
When parking, the centerline of the shaft moves sideways after stoping .
If the motor is turned 180, no matter what you do with the arm, the park action will be wrong.

My solution was to move the motor to the right about 3 inches, and lengthen the link the same amount.
If you are retaining the factory underhood electrical center, things get interesting.
Moving it to clear, it starts climbing the inner wheel well and gets too close to the hood.
I had to sink the center into the inner a bit.
 

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Discussion Starter #5
Awesome! For some reason I had the angles in my head wrong and I was thinking I’d have to notch a new slot into the wiper linkage, but you’re right, I think just the 180 flip would work. And I see what you mean about making sure it is an exact 180. What I will probably do is bolt the linkage up so that the wipers are “parked” and then drill my holes so that I know the wipers will park correctly

I’m thinking I’ll have to move the fuse box if I remember correctly where it sits, but that shouldn’t be a big deal as long as I have enough slack in the harness.
 

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Discussion Starter #6
Eek Gerry, thanks for your reply. That’s what I was afraid of, I was hoping it only rotated, but moving left to right would definitely create an issue. Ugh, offsetting it isn’t a big deal but my firewall is already all painted, motor in, I really don’t want to have to weld up a block off plate and have to repaint it all (also don’t want a gaping hole). Bolting on a block off plate would just look trashy. This could get interesting.
 

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That is EXACTLY what happened to me.
Engine was in and then I went to mount the wiper motor and although it would fit, it looked like sh*(^**t and the cover would not clear.
I machined up a stepped plug, bonded into place and blew in the paint.
 

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My personal experience, you can't flip it over and reposition the arm.
If you watch the action of the motor when it parks, it will become apparent.
When parking, the centerline of the shaft moves sideways after stoping .
If the motor is turned 180, no matter what you do with the arm, the park action will be wrong.

My solution was to move the motor to the right about 3 inches, and lengthen the link the same amount.
If you are retaining the factory underhood electrical center, things get interesting.
Moving it to clear, it starts climbing the inner wheel well and gets too close to the hood.
I had to sink the center into the inner a bit.

Yep - you're right, I forgot about the eccentric movement for Park. I'm very deep in the electronics/controls side of these, but have not delved too deep in to the mechanical side of them yet.

Thinking about this a bit more thought (and probably sticking my other foot in my mouth :)) If you were to flip it 180, the park position would lift the wipers up a bit instead of pull them down a bit (I think?). Maybe one could install the wiper motor at 185 or 175 degrees to compensate for this with a little compromise on wiper full stroke or having them park completely under the hood. Might be a better compromise compared to moving it over a few inches and all the cut/fab that will require?

Another long shot option is to lower the motor. If a Duramax will fit without relocating the wiper assembly, I'm sure an LSx will too :)
 

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Yep - you're right, I forgot about the eccentric movement for Park. I'm very deep in the electronics/controls side of these, but have not delved too deep in to the mechanical side of them yet.

Thinking about this a bit more thought (and probably sticking my other foot in my mouth :)) If you were to flip it 180, the park position would lift the wipers up a bit instead of pull them down a bit (I think?). Maybe one could install the wiper motor at 185 or 175 degrees to compensate for this with a little compromise on wiper full stroke or having them park completely under the hood. Might be a better compromise compared to moving it over a few inches and all the cut/fab that will require?

Another long shot option is to lower the motor. If a Duramax will fit without relocating the wiper assembly, I'm sure an LSx will too :)
My thinking,
stock angle , max parking stroke
rotating in either direction will decrease park stroke more and more up to 90 degrees where there would be no park
Continuing towards 180, the Backwards park would increase more and more .

Most LS swaps, people leave the wipers alone
The motor just clears and looks like crap.
 

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Discussion Starter #12
My thinking,
stock angle , max parking stroke
rotating in either direction will decrease park stroke more and more up to 90 degrees where there would be no park
Continuing towards 180, the Backwards park would increase more and more .

Most LS swaps, people leave the wipers alone
The motor just clears and looks like crap.

Yea, i keep racking my brain and I don't think there is any way to make it work with the parking movement other than figuring out if there is a way to flip the parking movement inside of the wiper motor which I doubt would be possible (though I've never taken one apart to be sure lol).

Only other thing I could think of, since I would likely try to avoid driving the car in the rain at all costs (but definitely still want to keep the wipers just in case) is slot the mounting holes after flipping it 180 and carry a 10mm ratchet on me so that I can un-park the wipers when I need to use them. Only issue with that is, it would be one thing for the rare occasion of driving in the rain but I also wouldn't ever be able to clean my windshield off with wiper fluid after bird/bug attacks without repositioning the motor, and I have a feeling at some point I'd end up stuck in a rain storm trying to find the 10mm I dropped LOL
 

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Discussion Starter #13
Gerry, your stepped block off plate looks great! unfortunately I don't have access to a milling machine, but looking at your setup it seems like it is all pretty well hidden by the wiper motor itself anyway. Just putting a painted piece of aluminum behind it bolted at 4 corners with some stainless hardware might not look too bad. I'm trying to pick up a TIG welder soon too, so I should be able to possibly weld up a block off plate with a much smaller heat affected area than my MIG so it hopefully doesn't compromise too much of the surrounding paint in the areas that will be hard to touch up.

Didn't want to add that kind of time to the project, but not looking like it's going to run before the snow season kicks in here anyway so I guess i've got the whole winter to find more work to do on it LOL
 

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I have had the motors apart.
Do not see any flipping of parts changing park direction.
Maybe someone smarter than I could figure something out in there but I did not see a way.

The block off plate, i used panel bond, did not weld.
As for the step in the plate, PM or email me
 

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Gerry has this right. I also looked at the possibility of flipping the motor, ruining one from the junkyard trying to figure out if it would work. I just wish I had grabbed the linkage arm to make the extension when the time comes..
 

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Rotating the wiper motor about 20~30 deg, counter clockwise, and making a new arm, or modifying your current one would be the easiest fix. All of the rest of the issues would disappear. You can use rivnuts to attach the motor at the new angle.

Modifying the arm would require cutting the slot for the shaft so that it rotates it to the new orientation, then filling it with weld to make sure it does not rotate on the shaft. Another option would be to cut the end off the arm, and weld it back on at the appropriate angle.
 

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Rotating the wiper motor about 20~30 deg, counter clockwise, and making a new arm, or modifying your current one would be the easiest fix.
Is that what you did ?
Do you have pictures?
Your firewall must be a lot different than mine . Look at the original mounting holes in relation to the cowl box and its contours.
If you have done this and it works, awesome,,,,
 

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I did not look at the firewall for mounting, but a 1/8 inch plate on the outside would facilitate mounting the wiper motor to the firewall.

On my 454 conversion, the wiper motor misses the valve cover by about 1/4 inch, but I did adjust the cowl about 1 1/2 inches to allow the valve cover to be removed.
 

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Rotating the wiper motor about 20~30 deg, counter clockwise, and making a new arm, or modifying your current one would be the easiest fix. All of the rest of the issues would disappear. You can use rivnuts to attach the motor at the new angle.

Modifying the arm would require cutting the slot for the shaft so that it rotates it to the new orientation, then filling it with weld to make sure it does not rotate on the shaft. Another option would be to cut the end off the arm, and weld it back on at the appropriate angle.
I'm doing a very similar swap, and this Florida way is what I was thinking to do before I saw this thread. My engine is already in, but no fluids in yet, so I could pull it back out to do it the Canadian way.
Florida way, a lot less work, but a lot less clearance.
Canada way, a lot more work, but a lot more clearance, a lot less heat on the wiper motor, and a nice wide path to route the engine harness to get it away from the heat from the #8 primary tube.
 

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RatSSled,

The two options suggested here differ in ,
One has been done,
One was a shoot from the hip, not been done, idea.
Take a good look at your firewall, do you see how you could rotate the motor 25-30 degrees counterclockwise?
Add to that, you would loose 30% of the park stroke.
If someone has successfully done this,,,, please,,,, lets see it.

Engine in, while ours differ in fat block vs ls,
mine was done engine in.
 
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