Absolute Pace

Welcome to Club Cobra.

You are currently viewing the world's largest resource for Shelby related information as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!


Go Back   Club Cobra > Club Forums > Australian Cobra Club

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

MMG Superformance
Nevada Classics
Main Menu
Nevada Classics
Nevada Classics
Keith Craft Racing
Advertise at CC
Banner Ad Rates
MMG Superformance
Keith Craft Racing
March 2021
S M T W T F S
  1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31      
  #1 (permalink)  
Old 09-23-2009, 05:31 PM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default Temp and oil sender locations for LS engines

With the engine loom on the way, I need to decide on locations for the oil and temp senders for my gauges. The factory senders go to the ECU and in a Commodore the signal is forwarded to the gauges, but my VDO gauges don't work that way.

For the oil sender, perhaps tap a thread into the block just above the oil filter? It has been suggested that the temp sender be fitted into a metal sleeve inserted into the lower radiator hose.

Just wondering what path other LS Cobra owners have taken. Of course any pictures would be a great help.

Cheers

Sambo
Reply With Quote
Sponsored Links
Sponsored Links
  #2 (permalink)  
Old 09-23-2009, 06:04 PM
Tenrocca's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2004
Location: Sydney, NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
Not Ranked     
Default

Sambo - My temp sendor is plugged into the header tank - Got a bung welded in when I had it built- probably not ideal but OK once water is circulating. Oil pressure I have a sandwhich plate for the remote filter and oil cooler which had an extra port that I put the sensor into. I have heard of tapping into the domed bit just above where the filter screws in. Think saw that in LS1tech.com - do a little search on there and Im sure you can find a pic.

Cheers
__________________
Proudly registered since 2013.
Reply With Quote
  #3 (permalink)  
Old 09-23-2009, 06:27 PM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Thanks Andrew. I found out that "domed but" is called an OFAC (oil filter adapter cap) and an aftermarket shop has a PDF showing how to tap it for their sender.

SCSS Oil Pressure Sender PDF

Otherwise something premade like this, although freight from the States will be the greater cost!

LS1 LS2 LS6 Oil Pan Routing Block Off Plate Threaded
Reply With Quote
  #4 (permalink)  
Old 09-23-2009, 08:19 PM
CC Member
Visit my Photo Gallery

 
Join Date: May 2004
Location: Melbourne, Vic
Cobra Make, Engine: Cobra RMC 377ci Windsor, Harrison Daytona Coupe, Ford XC Coupe.
Posts: 1,587
Not Ranked     
Default Howward Instruments

SAMBO,


I got my gauges from Howard's and they came with the adapters.

My water is in the header tank and I think the oil is in the pan you sourced for me.


Hope it helps,,,,


STIFFY
Reply With Quote
  #5 (permalink)  
Old 09-23-2009, 08:34 PM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Thanks Stiffy. Same gauges/senders as mine and I have the same pan, so do you know where the oil pressure sender is mounted in the pan? You mentioned adapters but did you mean senders? The water and oil ones are very similar except for a white or yellow bead around the top (oil is the yellow one).
Reply With Quote
  #6 (permalink)  
Old 09-23-2009, 09:17 PM
CHANMADD's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2006
Location: San Marcos california, CA
Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive
Posts: 1,551
Not Ranked     
Default

The temp guage (coolant) should be in the intake manifold just before the thermostat, or in the thermostat housing.
The Oil pressureguage should be on the side of the block closest to the oil pump location. the pressure sensor has to be in the oil passage just after the pump.
John
Reply With Quote
  #7 (permalink)  
Old 09-23-2009, 09:34 PM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Thanks John. The LS (Chev) thermostat housing hangs off the water pump and it's a little difficult to get the temp sender in there. I guess what you're suggesting is that if the thermostat fails to open and the sender is in the radiator hose, it won't see the motor boiling?
Reply With Quote
  #8 (permalink)  
Old 09-23-2009, 09:36 PM
Tenrocca's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2004
Location: Sydney, NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
Not Ranked     
Default

Sambo, In that scenario you will get a check engine light as a backup.

Cheers
__________________
Proudly registered since 2013.
Reply With Quote
  #9 (permalink)  
Old 09-23-2009, 09:41 PM
Gav's Avatar
Gav Gav is offline
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2006
Location: Mildura, vic
Cobra Make, Engine: FFR Coupe, 416ci of LS goodness
Posts: 2,348
Not Ranked     
Default

I have my oil pressure pick up just above the oil filter, and drilled and tapped an 1/8" port into the underside of the water pump 50mm back from the thermostat housing.
Works well thus far.
__________________
Powered by Cu
Reply With Quote
  #10 (permalink)  
Old 09-23-2009, 09:49 PM
Aussie Mike's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2001
Location: Sunbury, VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,407
Not Ranked     
Default

Hi Paul,

Temp sensor locations are easy on the LS motor.

The factory coolant temp sensor is in the front of the passengers side head just next to the exhaust flange. If you check the back of the drivers side cylinder head there is a corresponding hole with bung threaded into it. This has a 12mm thread and you can make an adapter to take it down to 1/8 NPT or BSP depending on the sender you are using.

I'm using mechanical gauges and the temp senders have a capilary tube with a bulb on the end. This required a bit of messing round to get them into the LS motor but it's do-able. Here's the back of the drivers cylinder head where I've drilled out that 12mm hole and re tapped it larger to take a larger adapter I made. A M12 to 1/8" NPT wouldn't just screw straight in without the extra work. You get the idea. I made one for Phil Neall some time back.


Oil pressure is easy too. There is a crossover above the oil filter where oil is ducted out of the sump and back in again. I reckon it is an adaptor for an oil cooler. It already has a boss cast into it that can be drilled and tapped to 1/8" NPT. I used mine with an AN#3 adapter so I could run a braided line back to the mechanical gauge. An electric sender could be threaded in just as easily.



Oil temp is easy depending on which motor you have. If you have a US crate motor it is likely the sump is already drilled and tapped for an oil heater. In extreme cold temps there is an option to plug your car into an electrical outlet and keep the oil in the sump warm overninght in freezing temps. I just unscrewed this heater and made an adapter to take my mechanical oil temp sender.



If it's an Aussie motor it may still have the boss in the casting. Otherwise the sump is plenty thick enough to drill and tap a hole directly into it. I would take the sump off to do it but even that is an easy job due to the reusable O-ring gaskets.

Hope this helps.

Cheers
__________________
Mike Murphy
Melbourne Australia

Reply With Quote
  #11 (permalink)  
Old 09-23-2009, 09:59 PM
boxhead's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2002
Location: Alice Springs, central Australia, NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
Send a message via Yahoo to boxhead
Not Ranked     
Default

Sambo, sorry for not having better pictures but I found these 2.
This first picture is where I located my Water temp sender, I drilled and tapped a hole straight into the top section here.


And for my oil pressure gauge I drilled and tapped a thread into this part of the oil filter adaptor, I think if you run an external cooler you could use this fitting.


Mike beat me to it, I wanted to fit my temp sender in Mikes location but the adaptor I made did not have enough meat in it and it split when tried to tighten it up.
And I wanted to get it working that day and had no access to a lathe so I just drilled and tapped where I circled in above pic.
The oil pressure switch is in the same loaction as Mikes.
__________________

Cruising in 5th


---------------------------------------------
Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.

Last edited by boxhead; 09-23-2009 at 10:06 PM..
Reply With Quote
  #12 (permalink)  
Old 09-23-2009, 10:25 PM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Thanks guys, the photos really help. I changed over to the LS2/corvette sump so I can put the oil temp sender in place of the oil heater. From memory the heater is a plastic gadget inside the sump so it will have to come off.

Is there a gasket behind the oil crossover thingy? I plan taking it off to tap it properly.

Andrew - do you know what temp triggers the MIL to come on? I guess I prefer to see it steadily rise than having it come on suddenly in heavy traffic.
Reply With Quote
  #13 (permalink)  
Old 09-23-2009, 10:27 PM
Aussie Mike's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2001
Location: Sunbury, VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,407
Not Ranked     
Default

The sump heater just unscrews. I think it has a large metric fine thread 18 or 20mm.

There is an O-Ring behind the oil crossover.

Cheers
__________________
Mike Murphy
Melbourne Australia

Reply With Quote
  #14 (permalink)  
Old 09-23-2009, 11:56 PM
gjkrv8's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2008
Location: Melbourne, VIC
Cobra Make, Engine: Classic Revival CR 3505, LS1, T56 6 Speed, VE 3.45 LSD Rear, 6 Spot AP Fronts, 4 Spot Wilwood Rears
Posts: 1,121
Not Ranked     
Default

Hi Paul,

I put the Oil Temp and presser senders on an Oil Filter Sandwich Plate which had 1/8 NPT holes in it. (found it hard to find one with 13/16 UNC Oil Filter thread though - had to combine two - long story)

Water Temp was using a 1/8 NPT to 12 mm adapter into the drivers side head, which has a bung in it.

Be careful with the adaptor though as Boxhead said there's not much meat left on it. I broke the first one and had to get an Esayout to get it out. Replaced it very gently and used locktite. Doesnt leak.

Rgds

Gregg

Last edited by gjkrv8; 09-23-2009 at 11:57 PM.. Reason: forgot about Oil filter thread
Reply With Quote
  #15 (permalink)  
Old 09-24-2009, 12:11 AM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Thanks guys. I need to scrub up on all this NPT stuff and practice my thread tapping before I tackle this job.
Reply With Quote
  #16 (permalink)  
Old 09-24-2009, 12:17 AM
boxhead's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2002
Location: Alice Springs, central Australia, NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
Send a message via Yahoo to boxhead
Not Ranked     
Default

I just noticed in the pics for the oil pressure sender, Mike's pic has the Corvette sump (Oil reservoir at rear) and mine is the Holden (Oil reservoir at front).
So Mikes filter and housing is at the L/H rear of engine and mine is at L/H front of engine, so it will depend on where your reservoir is but my sender is just below the alternator.
__________________

Cruising in 5th


---------------------------------------------
Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
Reply With Quote
  #17 (permalink)  
Old 09-24-2009, 12:24 AM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Yeah mine's the same as Mike's so I'll go off those pics. Cheers.
Reply With Quote
  #18 (permalink)  
Old 09-24-2009, 03:07 AM
Aussie Mike's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2001
Location: Sunbury, VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,407
Not Ranked     
Default

NPT = National Pipe Thread
BSP = British Standard Pipe

The 1/8" actually refers to the bore of the pipe. The fitting itself is probably closer to 7/16" in diameter.

Taper threads are designed so that the deeper the fitting is screwed in the tighter it gets (Stiffy will have fun with that one) The idea is that the fitting forcing itself into the sides of the threaded hole makes for a better seal. Especially when combined with some thread sealer.

You will find the fitting is slightly tapered and the tap for threading the hole is tapered too. You have to be careful when running the tap in to make a thread that the fitting will seat to the right depth. It takes a bit of practice and a bit of trial fitting to get it right.

I've got both NPT and BSP taps and you are welcome to borrow them. Pop over one weekend and I'll show you how to use them too.

Cheers
__________________
Mike Murphy
Melbourne Australia

Reply With Quote
  #19 (permalink)  
Old 09-24-2009, 04:31 AM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Fantastic offer, thanks Mike. Could you PM me your mobile number please? Meanwhile I'll try to work out what tap is needed for my senders.
Reply With Quote
  #20 (permalink)  
Old 09-24-2009, 06:50 PM
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2006
Location: The Hills, NSW
Cobra Make, Engine: Absolute Pace
Posts: 1,354
Not Ranked     
Default

I just put a spacer under the existing oil pressure switch at the back of the engine.

Really easy and neat if you have the right tools.

My coolant temp is the same place as Mike.

Ben




Last edited by Beejay; 09-24-2009 at 06:51 PM.. Reason: Photo fix!
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 08:28 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy