pics, question of the day

[78Suburban]

someone please help me identify these. am I correct in assuming that:
this is the water temp sensor (its on the head, not the manifold)

and this is the oil pressure sensor

Am I mistaken in thinking that if I take out the water sensor that water will come rushing out of the cooling system????

what is the best thread sealant to use for the oil and water sensors? the instructions say teflon tape, but I'm skeptical..

on more thing, if I unhook those sensors with my current idiot light setup, shouldn't the lights come on?? they didn't, which scares me.. I need to get some those gauges in there fast.

 

[Geargrinder]

Can't tell for sure from the pics but it "looks" like the right part in the 1st pic.
Yes watter will come out when U pull it, but not like it's under pressure or anything (so long as the engine is cool that is )
I use teflon tape on mine and have no problems.
The temp light will not come on when un-hooked, but the oil light should, should be on all the time the key is on and the engine is not.

 

[78Suburban]

sealer


so teflon tape worked good for your water bung? what should I use on the oil sensor? would rvt gasket maker work for sealing these threads?
thanks

 

[78Suburban]

ttt

 

[Geargrinder]

I use teflon tape on the oil too. I was woried about using any type of liquid sealer for fear of it geting into the senders and making them inacurate.

 

[ryoken]

if you use teflon tape, don't wrap the heck out of it. just a wrap or 2.. these senders (unless mechanical of course..) work by creating a ground to the block.. NPT's will cut thru the tape but don't load it up...

like i told ya in the other thread, i use thread sealant like this http://www.permatex.com/auto/autouh.asp?automotive=yes&f_call=get_item&item_no=56521

just a dab on the threads is all you need.. in actuality, you shouldn't need any sealant with NPT...

 

[78Suburban]

they are mechanical.. Would blue locktite work?
thanks,
James

 

[ryoken]

just use teflon tape then...

 

[sweetk30]

USE THE TAPE !!!!! WE ALL DO IT WORKS.

 

[ryoken]

ya don't have to yell...

 

[sweetk30]

sorry bad day . frigen sunday drivers


teflon tape will work just fine.

 

[ryoken]

no prob...

he woulda saved me a bunch of typing if he had said he was going mechanical in the first place....

 

[78Suburban]

thanks a million.
now if I can just find a decent hole in the firewall ... may have to drill before it's over.. the instrusctions say to drill a 7/8" hole & use proper rubber gromments if you can't find a factory hole