Hi Guys

I bought a thermostat but not the same part no but having 21200-05D02 , included in NISSAN box And specified as genuine but I am not sure whether it is really genuine, It costed me around 13 U$$ And has specified as 82 C , so I am going to install it tomorrow and see

sEARCHED BY PARTNO I GOT THIS INFO

http://www.partspool.com/search/ForSa ... TAT&Select_Num=2120005D02



Thanks
Regards
Sumith

That is for a Nissan D21 pickup truck.

Datsun A-engine: 2-1/8 inch diameter
21200-05D02: 54 mm (2-1/8 inch)

It is a considerably longer, so make sure it fits into the engine before bolting it up tight.

Hi Guys

That thermostat was correct in diameter ? and i could install it correctly, I have Bench tested in 3 times to make sure it is working fine,i think it was ok, i put in in a pot and kept it to fire and realized that when water starting making bubbles it started to expand it went down about 1 inch or more than that when water is boiling status
so felt it is working on 82 C correctly as specified.
After installing it i went a journey i could be able to drive about 45 KM without any problem when i return back car started overheating. could not drive 3 kM at once as it was mid night i removed the radiator cap and came around 30KM without any problem then again it got overheated, stopped it for a while filled water again after that i could be able to run it only 8-10Km without the radiator cap even.
I made sure that the indicator doesn't come or pass H Line Mark, what do u think guys ? is my radiator not enough to cool it down or any think wrong with Thermostat ?
I am very tired of the week end filled water more than fuel


Thanks
Regards
sumith

Quote:
How did you determine that is was overheating? Did steam come out of the bonnet? Did the gauge needle go out of the middle range into the H area on the far,far right?

The engine can run all day close to the "H" mark. Just don't let it go over that.

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Hi DD

Temp Gauge Went to H side and Sat Just Before H Mark Line,and i heard a noise from font Like "DOCK", "DOCK" felt that hot water was pressuring inside the water lines and my engine bay was extremely hot , but before it comes H Line i stopped the Car.

Thanks
Regards
sumith

> Sat Just Before H Mark Line

That's OK.

The engine bay should be extremely hot (82C/180F) is too hot to put your hand on it.

Hi DD

Just look at this picture (yellow Line) when needle comes to the Yellow Line Position i stopped the car, that time i can hear the dock dock sound from front, before thermostat installation it came to (Black indicator on the picture)in very rarely , it was lower than that even

Thanks
Regards
sumith

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  Temp2.jpg (10.02 KB)

Hi DD

and i am worried about
What is the Gurgle sound coming from car bonnet also ?

Thanks
Regards
sumith

I don't know. Maybe someone else can comment.

Maybe buy another new thermostat and see how that goes, also check the sender resistance just to be sure.
Or try pulling the centre out of an old thermostat, refitting it and see how it goes, works for me but my engine is modified.