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#1 |
Registered User
Join Date: Jun 2002
Location: Kansas City, MO
Posts: 186
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Temp gauge question
I've got a 75 Sierra Classic that i rebuilt the 350 engine. By suggestion from the machine shop I put a set of 305 heads on the engine to raise compression since one of my heads was cracked. The 305 heads use a different temp sender than the 350 heads, so I bought a temp sender for a later model truck. Do you guys know if the guage in my truck and the newer sender are compatable? The guage only registers a little bit over the cold mark. It seems to be registering a temperature, but it is like the scale is off. I used a temp gun to measure the outlet temp on the intake manifold and it was your normal 220 F. With it registering so cold I really don't know where the engine may be overheating.
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#2 |
Insert Witty Text Here
Join Date: Oct 2002
Location: San Antonio, TX
Posts: 3,415
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Re: Temp gauge question
When I used an early sender in my '86 after swapping the engine, it read much hotter than the engine actually was. I used an adapter to allow me to run the old sender, and it reads normally now.
Slonaker |
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#3 |
Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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Re: Temp gauge question
Sounds Like He Has The Smaller Hole Heads And The Old Sender is The 1/2 His New Setup Is More Than Likley 3/8 I think as long as the parts man that gave it to you was competent..
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#4 |
Registered User
Join Date: Jun 2002
Location: Kansas City, MO
Posts: 186
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Re: Temp gauge question
Thanks for the input
It sounds like I need to get a later model temp gauge from the same year truck that I got the sender for. Slonaker, Where did you get the adapter to convert the signal, sounds like I did the reverse of what you did and they may have a converter for that too. Thanks Again |
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#5 |
Insert Witty Text Here
Join Date: Oct 2002
Location: San Antonio, TX
Posts: 3,415
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Re: Temp gauge question
I got it from the plumbing section at Lowes. It was less than $2.00.
Slonaker |
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