88 Sub Air Cleaner Thermostat

Jun 05, 2004 7 Replies

Anyone know what temp the air cleaner thermostat goes full open? All the FSM says is it should be full closed at 40F. Even on a warm 85F day it's full closed at startup. At operating temp it looks about 1/2 open. Is this normal? Engine isn't pinging that I can tell. We haven't had a blistering hot day yet for an extreme test. I don't want to wait until I'm 1000mi from home mid-summer to find I should have replaced it.



This is the wax bead thermostat, not the vacuum motor style.


-RC



R.Clarke spam snipped-for-privacy@BlocKmindspring.com RTP, NC, USA


Sounds like it's shot. At full operating temp it should be WIDE open, even on a really cold day.

Doc

mine crapped out a loooong time ago... sounded like my 350 was sucking through a straw... I removed the spring and tack welded the choke stove hole closed. I have minimal probs w/ cold starts even at -15F as long as I let it run for a minute or two before I take off.

-Bret

I yanked my OE air cleaner housing altogether and dumped an Edelbrock open-air (purdy chrome, he he he) element in there. Starts fine even in the coldest of Ohio winter mornings, sounds meaner than hell when you romp it, and netted me a small fuel efficiency increase.

Doc

I've been considering that, but saving for the move precludes it... I just put in a high volume/ high pressure oil pump in Big Red this morning.... no more 5 psi hot idles! It really made me smile when I pulled out and the mech. gauge read 70 Psi (cold). now I've got a 15 psi hot idle (at 450-500rpm) and 30+ by 1000rpm with a nice linear progression upwards after.

another project I've been considering is to either a. find a dual snorkel TBI intake off of an F body or modify my existing aircleaner into a dual. I plan on modding the front edge of the hood for cold air... considering NACA ducts. who knows if I'll ever get around to it.

-Bret

Thanks for the quick replies.. Yet another item on my fix it list.

Did a few tune up items today. (Oil, filters, etc.)

-RC

R.Clarke spam snipped-for-privacy@BlocKmindspring.com RTP, NC, USA

Where are you moving to Bret?

Are you moving any closer to Charles?

If you, Doc and Charles are pretty close, since I'm on a forced sabbatical. I'd like to come out that way to visit Charles, maybe if Doc would like. Meet him too!

Refinish King

PS I can help Doc get the quarters >

back to Appalachia... 90miles south of Lexington, KY. I'm guessing about 4 or 5 hours from Doc.

relatively, KY is closer to PA then Maine is.

forced sabaticals tend to suck... my current employer has offered me $3 on the hour, 7 days more vacation and a company truck to stay, but they're about a month too late... really looking forward to being back in the south... these -15F winters tend to suck when you work outside.. (I don't remember winters this cold when I was growing up here)

cool, but elky's never were my thing. :-) My tastes go in 3 directions... 4x4 trucks, hot small block powered muscle cars (like a '67 Z28 w/ the 302), and small tossable sports cars (like my '87 MR2). I hate driving things that handle like crap. (my k2500 is borderline for me sometimes.)

-Bret

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