I have a 1972 142, Fuel injected, Manual, B 20 engine, 2 door, cut springs, modified exhaust
(I'm just getting into the world or bricks so excuse my lack of knowledge and possible misuse of terms)

The passenger side window regulator is broken and I was hoping that someone knew of somewhere to find one or even a similar regulator that I could replace it with

Second I was thinking of an engine swap, Im not a fan of the fuel injection as soon as I drop that its EFI everyone practically runs away. Would it be easy to replace with carbs?

Regulators are available. Rumor has it that a 240 regulator will work, but I've never used one.

The fuel injection on your '72 is not complicated, but can be costly to refurbish.
A swap to twin SUs is easy and relatively cheap. Easy to maintain too.

I tried to keep my injected daily driver '72 144E working, but eventually switched to SU HIFs and have never regretted it. This is my daily driver.
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"Differences of opinions should be tolerated, but not if they're too different' - Sharon Craig

There's nothing particularly wrong with carbs, I really enjoy the heck out of my DCOE carbed PV. But fuel injection has some very real benefits. Before tossing it all out, maybe consider upgrading the fuel injection to something a bit more modern like Megasquirt. You can keep most of the trouble-free hardware (fuel pump, pressure regulator, injectors, temp sensors) and get rid of the failure prone MAP hand grenade, and upgrade the inscrutable ECU to something that talks to a laptop.
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'63 PV544 rat rod, '93 Classic #1141 245 (now w/16V turbo)

Are you sure the regulator is bad? The bracket that holds the window is usually the culprit.

Have you opened up the door and looked?
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Eric

Hi Performance Automotive Service (formerly OVO or Old Volvos Only)

Torrance, CA 90502

Absolutely right. It's been so long since I've had one go.
Does the bracket / channel from a 200 series in fact fit the 140 regulator?
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"Differences of opinions should be tolerated, but not if they're too different' - Sharon Craig

The brackets and the regulators are not the same as the 240.

If his car were a year or two later, the 240 window bracket and regulator are the same.
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Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502