924Board.org

[ourkid]

A slight twist on the by now "done to death" hot start issue.

I figured during the summer that my cold start valve was operating for the maximum duration during every start,regardless of engine temp,or surrounding temp.This caused flooding and complete non-start until i un-plugged the valve(then giving instant start-up).
Anyway,i've been using the car for a few months with it disconnected.Yesterday it went to 2 degrees and i had to plug it back in.

I can see how much of a pain it is to replace the thermo switch so i was thinking of using the hot start fix to rig up a switch for manual control.

HOWEVER..... if i splice into the earth (as per instructions on this forum),i will still have the normal operation in place and will still get problems when hot.So what if i cut the earth,instead of "piggy backing" it and put a switch in the earth line.Then i have total control all the time?.Will this affect anything else.

I will replace the thermo switch eventually (after cleaning my WUR,fitting a Carerra kit,new mats etc...etc....list goes on...)
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1983 924 N/A

[Rich H]

TTS is easy to replace, it just takes time.

Dizzy out
Unplug TTS and temp sender
Drain coolant (Take the opportunity to flush and replace)
Disconnect 2 pipes to TTS casting
Undo the 2 bolts that hold the TTS casting & remove
Remove TTS from casting on the bench
Replace.

Doesn't take that long

Failing that just wire the CSV into a push button and ignore the TTS altogether.
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1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

[Rasta Monsta]

+1 to Rich, be patient and fix it right.
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[ourkid]

Thanks for the guide Rich,I'll still fit a switch for now...just been out in the garage and it's too damn cold!

Ade.
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1983 924 N/A

[Brockoli]

i changed my TTS from under the car. I didnt take the dizzy out. In fact i didnt even jack the car up, this was before I lowered it. Its hard to get to but its not that bad of a job.

I didnt realize that it was a plug for the coolant tho, I was pretty new to the car. The only problem I had was getting out from under the car before the coolant gave me a bath, that was very exciting. I think i used a normal wrench too, nothing tricky.
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'80 924 M471,Wideband O2, Full coilover susp,23/19 sways,Bilstiens,KLA Strut Brace,Roll Bar,Test Pipe,BBS RS, Willwood BBK

25% of a '87 944 Chumpcar http://straightpipe.ca/forums/showthread.php?t=2454

'79 924 Sebring Edition(Sitting)

[Rich H]

One of mine was properly stuck in, it undid ok, the threads came out, but the end was stuck fast!
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1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec