so i posted this in the F/I forum, but i havent had too much luck yet so i thought i would ask you guys since most of us here probably run these year motors;

i have a 90-93 style b18a block, and i'm wanting to remove the 2 plugs in the back of the block to run the breather lines to my catch can using the honda fittings. anyway there is a sensor in one of the plugs which i guess is the oil temperature sender, which turns on the fan at a certain temp. i searched and read that it might be part of the a/c system.
i was wondering if anybody has just removed this, and been fine, or should i leave it and just run 1 breather line off the back of the block.

the motor is in a 91 civic dx, and i did wire a plug to it, but i have no idea if it is actually doing its job, haha.

any help is appreciated!!!

 

anybody?

 

it should be fine to remove it i did for a pressure gauge and no issues except u need to hardwire toggle switch for ur fan so if ur sittin for a long period of time u can cut it on to avoid overheating

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by speeddave &raquo;</TD></TR><TR><TD CLASS="quote">so i posted this in the F/I forum, but i havent had too much luck yet so i thought i would ask you guys since most of us here probably run these year motors;

i have a 90-93 style b18a block, and i'm wanting to remove the 2 plugs in the back of the block to run the breather lines to my catch can using the honda fittings. anyway there is a sensor in one of the plugs which i guess is the oil temperature sender, which turns on the fan at a certain temp. i searched and read that it might be part of the a/c system.
i was wondering if anybody has just removed this, and been fine, or should i leave it and just run 1 breather line off the back of the block.

the motor is in a 91 civic dx, and i did wire a plug to it, but i have no idea if it is actually doing its job, haha.

any help is appreciated!!!

</TD></TR></TABLE>

Leave the sensor in and run the 2 vents/lines. However, you need to remove the stock breather box to access that second plug. Use a frost plug to plug it off.

Here's my setup:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hizroyalty &raquo;</TD></TR><TR><TD CLASS="quote">it should be fine to remove it i did for a pressure gauge</TD></TR></TABLE>


I was also thinkin about doing this for a psi gauge, and of course you are talkin about oil psi right? It sounds like it worked perfectly correct? It seems to me that if that spot on the block was chosen for oil temp readings, then it would have oil flowing there (pressure), so why would you want a breather fitting there? You dont want large amounts of oil to flow in the breather lines. Please correct me if im wrong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. S &raquo;</TD></TR><TR><TD CLASS="quote">

Leave the sensor in and run the 2 vents/lines. However, you need to remove the stock breather box to access that second plug. Use a frost plug to plug it off.

Here's my setup:



</TD></TR></TABLE>

see your vent on the left by the coolant sensor, well that is where the oil temperature sender is, instead of a hex head plug, its a threaded plug w/the sensor in it.

i'm wondering if i should put a huge fitting on my black box, and run that to a catch can to make up for not having 2.

 

Uhhh, nope, this is where the oil temp sender should be (at least, that's where it is in my B16A block... just haven't installed the sensor yet):



As you can see, it doesn't interfere with that vent at all. Maybe your block is different for some reason, but mine has a threaded hole there that will work with the B16A oil temp sender or whatever it's called. maybe somebody installed an oddball sensor in your block or something.

I also had that plug removed when my B16A engine was in and running. I only had to remove the hex headed plug and all the sensors were left in. I couldn't reach the one that sits under the pcv box, so I just had the one vent going.

 

yah mine has one in the threaded plug hole that you have the breather fitting in. the one below the coolant that you have circled is the oil pressure sensor i believe. i found out the sensor came in the 90-93 integra's and is part of the a/c system so that when your oil is above a certain temp it will run the fan after engine shutdown to reduce underhood temps. should be ok to remove. thanks for the help though!!

 

Odd. I learn something new everyday

Yah, you should be fine to remove it. I don't think it's that important. My B16A did not need a sensor there, so my LS shouldn't as well.