Sleeper!!!!

grumpyvette said:
if it was my car ID have the fans on two different sensors so one came on at 180f- 185f and one at 195-200f that way your far less likely to have both fans fail at the same time on some long trip in the middle of no-ware preventing your car driving
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Aaah - that makes a lot of sense. But temporarily (until I can open up another port) no problem>

How do you feel about those sensors pushed in between radiator fins? For some reason they seem less reliable/accurate/consistent to me...
 
DorianL said:
How do you feel about those sensors pushed in between radiator fins? For some reason they seem less reliable/accurate/consistent to me...
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I would not trust them nearly as much as a sensor located in the intake manifold or head coolant passages, Id be very concerned that they would ALWAYS tend to read lower because any surface in contact with outside air flow rather than direct coolant contact would tend to run a bit lower and if coated with corrosion or dirt , its insulated to some degree and may be reading significantly lower
 
grumpyvette said:
DorianL said:
How do you feel about those sensors pushed in between radiator fins? For some reason they seem less reliable/accurate/consistent to me...
Click to expand...

I would not trust them nearly as much as a sensor located in the intake manifold or head coolant passages, id be very concerned that they would ALWAYS tend to read lower because any surface in contact with outside air flow rather than direct coolant contact would tend to run a bit lower and if coated with corrosion or dirt , its insulated to some degree and may be reading significantly lower
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100% agreed - you articulated precisely my concern!
 
The sensor pushed in to the rad indeed only activates at 200+ a hair. I located three plugs: one in manifold and one in each head. Problem is none of my wrenches fit! Grmbl! The square ones in the head are between 3/8 and 1/2... odd!!!! The one in the manifold is a very large allen.

This weekend I might fix that. Temporarily pushed in.

Oil pressure is still solid!

Since the replacement caliper is here, I am going to try to push it through Tech Inspection again this Friday: fingers crossed!

D.
 
sounds like the normal shake down process where you eventually find things that need to be changed or improved or moved to have the car function like you really want it too, stop, think thru what your doing and what you want it to be like once its complete,just take your time and don,t half ass fix things, do things correctly because in the long run its going to save you a great deal of aggravation money and time
 
Yup - problem is, believe it or not, this car is my daily driver and I need it running like... tomorrow! I drive to work with it twice a week. So this push in sensor is VERY temporary. I'd just rather have something working to keep those fans running in case I miss a beat during my commute.

BTW - commuting to work in this car (amongst the euro-weenie econo-boxes) sure gets heads turning and ears perked up!
 
DorianL said:
BTW - commuting to work in this car (amongst the euro-weenie econo-boxes) sure gets heads turning and ears perked up!
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I can only imagine the reactions you must get. :shock: :eek:
 
They are all over the place - but always very positive... sometimes embarrassingly so...
 
In-F-credible... here I am getting close to going back to tech inspection and I lose the back half of my brakes! Checked the reservoir: rear one empty. Grmbl. I doubt this is a leak or corrosion. Probably my bad. Too coincidental that I just replaced the master cylinder.

Were I to guess, I'd venture that I did not tighten the bleeding port sufficiently. We'll soon find out!
 
DorianL said:
In-F-credible... here I am getting close to going back to tech inspection and I lose the back half of my brakes! Checked the reservoir: rear one empty. Grmbl. I doubt this is a leak or corrosion. Probably my bad. Too coincidental that I just replaced the master cylinder.
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I thought that the rear reservoir was for the front brakes. Maybe I'm mis-remembering........anyone else that confirm or deny this?

Edit: Not sure if there is any connection to your problem thou.
 
Hmmm, you got a point there...

master_cylinder2.jpg


D'uh!!!!
 
This bodes well as I know the front lines are in decent shape. Must have neglected to tighten the front bleeds tight enough. Certainly far easier to check than the rear circuit...
 
Nope, it was indeed the rear...

And it seems to be squirting from the rear fitting of the proportioning valve...

The hex thing on the right side. I can't see it too well (I'm on my back in the dark driveway again) but maybe it's the weep hole or the o-ring?

1978-corvette-valve-bendix-combo-3.jpg


Maybe this weep hole lost its plug?

1978-corvette-valve-bendix-combo-5.jpg
 
if you get a chance take a few pictures and let us know what failed or what was installed incorrectly or what broke!
(we all screw up installations or get defective parts at times)
 
DorianL said:
Hmmm - any suggestions? Just order a new one?
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For the price you can't go wrong by replacing it, if it's easy to buy in Belgium.

But....if not, then a weep hole is for when the seal leaks, the fluid has a way to get out. A water pump has a weep hole to keep water from getting to bearing when the seal leaks. It's not suppose to be sealed. In this case replacing the o-ring seal might help.
 
Thanks! Let's try that then - the idea is to take it to tech inspection this Friday... I could order a new one, but if I do that, I'll miss my deadline and they tend to be stricter if you do...

And they are not easy to come by here...
 
DorianL said:
Thanks! Let's try that then - the idea is to take it to tech inspection this Friday... I could order a new one, but if I do that, I'll miss my deadline and they tend to be stricter if you do...

And they are not easy to come by here...
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call speedshop in stekene ore sixpacks ore C&P parts ore danny belio
if one of those don't have it i am out of ideas
 
Yea- that would still never make it in time for Friday. I'd have to go all the way to St-Niklaas, was it? Then swap calipers and combination valve. The only option I kinda have is pulling that fitting off and seeing if the o-ring broke and then replacing if I have one - then calipers and on to tech inspection.

But it is only worth attempting this if there is a reasonable chance of success - really is kinda weird that that weep hole suddenly started piddling like that...
 
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