Temp gauge reading low after head gasket / reroute install - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 10-07-2015, 07:49 PM   #21
Junior Member
Thread Starter
iTrader: (5)
 
Join Date: Oct 2011
Location: San Diego, CA
Posts: 402
Total Cats: 21
Default

Yeah. I saw that earlier, but thank you for pointing it out again. Didn't want to have to resort to doing that just yet.
slmhofy is offline   Reply With Quote
Old 12-16-2015, 01:25 PM   #22
Junior Member
 
Join Date: Jan 2013
Posts: 61
Total Cats: 0
Default

Quote:
Originally Posted by concealer404 View Post
Grounding to the bolts that pass through everything won't do anything.

Here's the issue: The half of the sensor that feeds the gauge grounds through the sensor body itself. Sensor body threads into spacer.

You have head --> gasket --> spacer --> gasket --> water neck

The only way the spacer will ever work as a ground is if it happens to be touching one or both of the bolts. Holes for the bolts are bigger than they need to be, so that's not happening consistently, especially on our vibrating special motors.

I'm not a fan. I'm swapping to the M-Tuned solution over winter. Been fighting this issue for about 2 months now and i'm too stubborn to run a new ground, because really, i shouldn't have to.
So rather than just drill/tapping a small hole for ground in the BEGI spacer you're going to swap out the whole re-route? Makes a ton of sense... The BEGI has always been more of a DIY but I think it's a better system. I like the thermostat being on the block so it would be quicker to react to temp changes.

I honestly can't believe it took me this long to figure out why my coolant gauge was acting so funny and only worked intermittently. The ground had never occurred to me because my gauge was working fine after the re-route install and it wasn't until I added the turbo kit that it started acting up. I guess I bumped it or something happened to where the ground path through the bolts was no good anymore.

I'd like to pull the spacer out to drill and tap for ground but that seems like a PITA so my plan is to strip 6" or so (not sure how much it will take) of insulation off a wire and wrap it around one the mounting bolts (after removing) and make sure it is squeezed tight by the BEGI spacer. Then just connect that to the chassis and you're done. Wrapping all that copper around the bolt and touching the spacer should be plenty for ground.
jamesr242 is offline   Reply With Quote
Old 12-16-2015, 01:29 PM   #23
Elite Member
iTrader: (6)
 
Join Date: Feb 2013
Location: Staunton, Va
Posts: 2,398
Total Cats: 200
Default

Pulling the spacer out takes like ten minutes. I spent more time trying to come up with a way to avoid the drill/tap method.
ryansmoneypit is offline   Reply With Quote
Old 12-16-2015, 01:35 PM   #24
Junior Member
 
Join Date: Jan 2013
Posts: 61
Total Cats: 0
Default

Quote:
Originally Posted by ryansmoneypit View Post
Pulling the spacer out takes like ten minutes. I spent more time trying to come up with a way to avoid the drill/tap method.
10 minutes seems like a gross exaggeration. What about topping off the coolant? Running to the store to get the coolant/distilled water/thermostat gaskets? Burping the system? I'm at a lot more than 10 minutes so far.

What I was suggesting should be sufficient for now and then next time I actually drain the coolant I'll drill/tap. I agree that it's the better solution, just not worth doing if you aren't swapping the coolant anyway, IMO
jamesr242 is offline   Reply With Quote
Old 12-16-2015, 01:41 PM   #25
Elite Member
iTrader: (6)
 
Join Date: Feb 2013
Location: Staunton, Va
Posts: 2,398
Total Cats: 200
Default

First of all, I said 10 minutes to get it out. The rest of your statement makes you sound like a master fabricator of excuses.
ryansmoneypit is offline   Reply With Quote
Old 12-16-2015, 01:46 PM   #26
Junior Member
 
Join Date: Jan 2013
Posts: 61
Total Cats: 0
Default

No need to get butt hurt. I was just suggesting that it's not necessary to spend the time now. Better to wait for when you're in there already. Maybe you have all the time in the world but I have 7 month old and do not. I like to use my time efficiently. You implied that it was a quick piece of cake and I just pointed out that's not the case.
jamesr242 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:33 PM.