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Old 10-15-2006, 02:07 PM
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Head temp. bolts

Previously before installing a new edelbrock intake and carb my water temp guage would hook up into a hole in my thermostat housing. But now unfortunately with the new intake it nolonger fits as it pushes against the thermostat.

I've tried taking a bolt out of the side of my head so the guage can hook right into the head but it aint going easy. Whats the best way to break those bolts free? I've tried a 3ft breaker bar but I don't want to strip the bolt.

Any idea's? This is on a 1974 Nova SS with a 350 4 bolt. Stock heads.


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Old 10-15-2006, 03:05 PM
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Look on the other side of the water neck and hose, you`ll see where theres a screw in plug in the water passage. Remove the plug and install the temp sensor. You`ll likely have to do some hose rerouting.
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Old 10-15-2006, 03:28 PM
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temp sender

Hi,
go to the hardware store, & get a longer bushing.

rich
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Old 10-15-2006, 07:05 PM
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Quote:
Originally Posted by DoubleVision
Look on the other side of the water neck and hose, you`ll see where theres a screw in plug in the water passage. Remove the plug and install the temp sensor. You`ll likely have to do some hose rerouting.
If I'm thinking of the same one you are its blocked by my upper rad hose. Its all to close there.


Quote:
Hi,
go to the hardware store, & get a longer bushing.

rich
What type of bushing do you mean? I'm thinking you mean a brass bushing that will extend the height of the whole thing a little more? The only thing is it sticks out quite far after that.
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Old 10-15-2006, 07:59 PM
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head temp bolts

I was looking at another thread "305 SBC" about brackets On his engine he has a thermostat housing which is at a greater angle for the sending unit. Should the housing fit it may give you enough clearance. Just a thought. russ
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Old 10-15-2006, 08:27 PM
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Doc here,

Bare in mind...The more you stand off the bourden tube from the water stream the more inaccurate you readings are going to be..(using bushings increases the sender height out of the water stream).

Up to where it no longer is in the stream and you get a bubble nested in there..A sender can not read AIR..but it Can report 300 degrees then 150 then 300 then 150 every 30 seconds or so as you go down the road..NONE of which is right..and your gauge looks more like a turnsignal indicator..

To do it right..Get a Proper Resistance sender for the gauge .. then match it by thread to the outer thread on the bush and depth required...you have in there now..and install that directly into the housing..

As for the head plug (or sender) I have had good luck with the left front one under 1 and 3 plug..with a socket and breaker bar ..1/4 turn and you can screw them out by hand usually ... install the sender and all is right with the world..

Word of advise.. on a one wire sender..Don't use a roll of Tape on the threads, or Glop it up with sealers..maybe a little anti seize ..The sender body is ground for the variable resistor and the sealers usually are insulators..They have tapered threads So as long as you get them tight..under normal opps, they should not leak.

Doc
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Old 10-16-2006, 04:35 PM
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temp sender

Doc,
The man said that the Borden tube is hitting on the thermostat, a 1/4" more of bushing isn't going to pull it out of the water stream, but will move it off the thermostat. it's a quick inexpensive fix for that problem. I personally would change the thermostat housing.
Take care & keep safe,
rich



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Old 10-16-2006, 05:34 PM
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Looking at one of those pics---
Seems to me Edelbrock did not drill and tap for a sender on the drivers side of the intake water passage.
The boss is there--no hole or plug

I would probably have the manifold drilled and tapped-----but not today, don't feel like it Took me two weeks to get to an oil leak-10 min to fix-car is still on jacks-since last monday maybe I'll let it down tonight when it cools down outside


Bryan
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Old 10-17-2006, 06:38 PM
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I have an Edelbrock Performer EPS, and its tapped in two places for a temp fitting. The tapped hole I used is the one just under the upper radiator hose (which you can see in the picture), but the angle of my thermostat housing seems to give a little more clearance for the mechanical temp gauge connection.

The other location I've tried is the tapped hole in the head on the passenger side. I used a 3/8" socket extension to turn the plug and it came out without any problem. However, it routes the line close to the exhaust manifold and you have to be careful to keep it from touching the manifold.

Bruce
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Old 10-18-2006, 06:50 AM
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Finally took car off the jacks last night.
Put my glasses on this morning---now I see your plug
Did not notice that earlier----this over 40 eyesight sucks---

By the time I get far enough away to see clearly--item has reached it's vanishing point

Bryan
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