Weekend wrenching report

"ImmoralMinority" (araimondo) 09/10/2018 at 08:57 • Filed to: None

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As previously reported, the Vespa variator, belt, and clutch upgrade was a success. I just need to order a new transmisson cover.

We spent a few hours working on the Cressida, primary on the a/c. My pal Dave thinks I am insane to spend another penny on labor on this, and is determined to help me get it sorted. So here is where we are. We put in the new pressure regulator, to no effect. But I think we learned some things

I think the diagnosis is wrong, and Dave agrees. The compressor turns on and runs fine. The system holds pressure, without apparent leaks. The evaporator bubbles in the sight window. It should work. But it blows hot.

The odd thing is the temp never changes when you slide the temp control. In the Sunchaser (borked a/c), “cold” blows ambient temperature air and “hot” blows hair dryer temperature air. If the Cressida’s problem was the a/c, the same would be true.

I think the problem lies in the climate control system - I think some flap somewhere is stuck and won’t flip back to cold. I am going to pull the dash off at some point and find out.

But what resolved is that the Cressida is getting its a/c fixed in my driveway, not the shop. Stay tuned.

Wacko > ImmoralMinority 09/10/2018 at 09:01

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The problem is the engine lacks power to make the cold, me and captDale have been talking, and the solution is Toyota v12 swap.

ttyymmnn > ImmoralMinority 09/10/2018 at 09:07

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I think the problem lies in the climate control system - I think some flap somewhere is stuck and won’t flip back to cold.

Some blend door somewhere? My old Golf had a blend door that had speed holes drilled in it for some reason and covered with insulation. After many years banking in Texas, insulation started blowing through the vents when the AC was on. After a while, all I had was a door with holes in it. It didn’t affect the AC that much, but I had zero heat in the winter.

random001 > Wacko 09/10/2018 at 09:08

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That’s a weird name for an LSx....

shop-teacher > ImmoralMinority 09/10/2018 at 09:17

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“I think some flap somewhere is stuck and won’t flip back to cold.”

Sounds right to me.  

Good work this weekend!

Wacko > random001 09/10/2018 at 09:33

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he wouldn’t go for that.  and V12....

random001 > Wacko 09/10/2018 at 09:37

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I....I don’t understand....

E90M3 > ImmoralMinority 09/10/2018 at 09:42

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R134a is not as good of a refrigerant as R12. Therefore, you have to upgrade somethings like the condenser to get colder air. Helped a friend reinstall AC on his E30 with an M50 in it. Had to upgrade the condenser and the dryer.