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930-78-3,3 thermo time switch ??

Hey where the engine sits thermo time switch.?? I can not find it.

regards John

Old 09-16-2010, 09:17 AM
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On the engine block, in the back, below the fuel distributor, just to the left of the case seam.
Mark
Old 09-16-2010, 09:28 AM
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Top left corner of the left side chain case cover.
Old 09-16-2010, 09:28 AM
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On the engine block, in the back, below the fuel distributor, just to the left of the case seam.
Mark
The one mentioned above is the emissions oriented thermovalve that blocks vacuum advance from making it to the vacuum advance pot on the distributor until engine heat migrates up to it, and then it opens if still working and lets vacuum advance start to work.

The purpose of that thermovalve is to block vacuum advance when it's cold so timing is retarded enough to raise exhaust temperature which heats up the catalytic converter faster and lowers emissions after a cold start.

I don't know if a euro car has one because they didn't have catalytic converters in the mid eightees.
Old 09-16-2010, 09:38 AM
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Crap...I had my last project stuck in my mind...so sorry. JFairman is spot on!
Mark
Old 09-16-2010, 10:12 AM
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I can only see this connector is it to?
Old 09-16-2010, 10:39 AM
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Look towards the back of the car, left of the crankshaft and on the far left side of the timing chain cover. Should have two wires connected to it.

Not my engine, but see attached picture:
Old 09-16-2010, 01:17 PM
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Here's is were mine is....

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Old 09-16-2010, 01:22 PM
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Quote:
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Look towards the back of the car, left of the crankshaft and on the far left side of the timing chain cover. Should have two wires connected to it.

Not my engine, but see attached picture:
Glad that's not your engine! Looks like a boat anchor.
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Old 09-16-2010, 03:30 PM
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Thank you. for your great help.

Regards john
Old 09-18-2010, 01:36 AM
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Quote:
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Here's is were mine is....

Nope. That is your throttle airplate safety switch - if I am seeing all your pic.
Airman is correct and gets the prize.
Alan
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Old 09-20-2010, 07:05 PM
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opps....wrong one. Here is the correct thermvalve for that connector

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Old 09-21-2010, 07:12 AM
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How do I measure the thermo time switch, to see if it is ok?

Regards John
Old 06-05-2011, 08:41 AM
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what is it's function anyway?
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's.
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Old 06-06-2011, 04:04 AM
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what is it's function anyway?
It triggers the cold start injector . . .
Old 06-06-2011, 08:16 AM
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It cuts the Cold Start Valve off after a few seconds. They CSV fires extra fuel via injector straight down the intake throat below the throttle butterfly - so it goes to all cylinders.
You dont need this extra fuel after about 20 - 30 secs once the engine has fired up and the WUR takes over. The Thermo switch should cut the power to the CSV after that time. You can check it by hooking a multi meter over the terminals on a cold motor - you should have a intact circuit (Closed circuit - ohms), then it should cut off shortly after motor fires.
Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-)
Old 06-06-2011, 11:44 AM
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oh ok

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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's.
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Old 06-06-2011, 01:53 PM
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