Thermostat Replacement Following Service Manual or Shortcuts

[Camrysandcoffee]

My '05 1300 has been between 1-3 bars on the coolant temp gauge in the late fall/winter months, and so I am preparing to remove and inspect/replace the thermostat. I have successfully removed the radiator, and it appears that I can simply unbolt a metal brace-looking part on the frame and access the t-stat housing that way. However, the shop manual recommends removing the throttle body(!) and removing all connecting hoses to the t-stat housing. Is this actually necessary? I have fooled myself by taking shortcuts before, so I was curious to hear the experience of others before I start pulling parts.

 

[klaproth]

You are correct...it can be done from the front, without removing the throttle bodies, etc. Make sure to replace the o-ring.

 

[dduelin]

My '05 1300 has been between 1-3 bars on the coolant temp gauge in the late fall/winter months, and so I am preparing to remove and inspect/replace the thermostat. I have successfully removed the radiator, and it appears that I can simply unbolt a metal brace-looking part on the frame and access the t-stat housing that way. However, the shop manual recommends removing the throttle body(!) and removing all connecting hoses to the t-stat housing. Is this actually necessary? I have fooled myself by taking shortcuts before, so I was curious to hear the experience of others before I start pulling parts.

I can send you a step by step tutorial on a pdf walking through the process of coming at it from the front. Many of us have used it to do this job. Yes, the Honda service manual details removal of the air box and throttle bodies but it is not necessary and a lot more work not to mention the possibility of messing up something that is perfectly fine at the moment. The files are large so send me an email address in PM you want them to come to (if you want the tutorial).

Good day!

 

[Camrysandcoffee]

Returning to this thread to say I was able to replace the part without removing any throttle body components. Thanks to dduelin and klaproth for your help!

 

[skulldugger]

Returning to this thread to say I was able to replace the part without removing any throttle body components. Thanks to dduelin and klaproth for your help!

Ditto!
i replaced my thermostat last week!
Jeff

 

[SMSW]

I hope @Camrysandcoffee and @skulldugger tightened the hose clamps a bit on whatever you could reach near the thermostat while you were in there. Honda's narrow clamps have a tendency to allow a drip to leak out over time. This is why there are so many threads on replacing the clamps.

 

[skulldugger]

I hope @Camrysandcoffee and @skulldugger tightened the hose clamps a bit on whatever you could reach near the thermostat while you were in there. Honda's narrow clamps have a tendency to allow a drip to leak out over time. This is why there are so many threads on replacing the clamps.

All tightened! At least the ones I could reach. No drips so far!