 Swollen upper radiator hose., Swollen upper radiator hose. |
 Feb 21, 2018 - 2:08 PM
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Enthusiast  Joined May 2, '06 From Nevada Currently Offline Reputation: 0 (0%)  |
I have a Celica 1995 GT. My upper radiator hose is OEM Toyota part, 7 years, 80,000 miles old. My radiator cap is new, OEM Toyota, correct 88Pa. NO overheating or drive-ability problems whatsoever.
When fully warmed, my upper hose is noticeably swollen, more so at the the engine connector. (which is to be expected as there hot coolant enters the hose before it bends). I know OEM Toyota hoses last A LONG time. I replaced previous ones after 16 years, 150,000 miles as the precaution - they looked fine. I also know they are somewhat thin and soft even when new and supposed to swell somewhat by design. I pressure tested my cooling system - perfectly fine. I got and tested several caps - new and used, and pressure tested them according to the OEM repair manual. Strangely, several OEM Toyota caps I got - new and correct, 88Pa (.9 bar) actually open all past 1.5bar when tested! - some way more! (I tested about 5 from different souses - all correct 88Pa). The manual says should be within 74-108Pa, discard if less - says nothing what if more - is it OK? All cause the same hose swelling. Now - I have one worn cap, opens almost at no pressure. That one of course causes NO swelling at all. And the car runs fine with it, no overheating whatsoever - just fills and overfills the bottle after a run - to be expected with very little pressure. That is it. And no - I do not have head gasket problems (it would not matter anyway as the cap would release the gasses) NOW MY QUESTION - HOW MUCH SWELLING of the upper radiator hose is normal, by design, to ignore and nothing to worry about? General answers online have a lot of nonsense - you have this, you have that. From your experience - what is the normal, acceptable swelling of the upper OEM Toyota hose car fully warmed up? With a brand new (or unworn) cap? Thanks a lot! Larry |
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Feb 22, 2018 - 10:10 AM
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Enthusiast Joined May 2, '06 From Nevada Currently Offline Reputation: 0 (0%) |
<blockquote class="imgur-embed-pub" lang="en" data-id="a/hbl3q"><a href="//imgur.com/hbl3q"></a></blockquote><script async src="//s.imgur.com/min/embed.js" charset="utf-8"></script>
https://imgur.com/a/hbl3q Ok - hopefully this will work - Images: https://imgur.com/a/hbl3q Thanks a lot guys in advance for your answers! |
Posts in this topic
valerit1 Swollen upper radiator hose. Feb 21, 2018 - 2:08 PM
Bitter Can you get a photo? I can tell pretty well by tha... Feb 21, 2018 - 8:13 PM
valerit1 QUOTE (Bitter @ Feb 21, 2018 - 9:13 ... Feb 21, 2018 - 9:11 PM valerit1 Oops - some photobucket glitches.
Hot: Feb 21, 2018 - 9:25 PM Box That seems a little much, if it's not too expe... Feb 21, 2018 - 9:40 PM valerit1 QUOTE (Box @ Feb 21, 2018 - 10:40 PM... Feb 21, 2018 - 9:58 PM valerit1 Not expensive at all. But - would it not suck if a... Feb 21, 2018 - 9:44 PM Box It just looks like the rubber is distressed where ... Feb 21, 2018 - 10:14 PM valerit1 QUOTE (Box @ Feb 21, 2018 - 10:14 PM... Feb 21, 2018 - 10:28 PM Box Yeah they can last that long and not rupture, but ... Feb 22, 2018 - 12:23 AM valerit1 QUOTE (Box @ Feb 22, 2018 - 12:23 AM... Feb 22, 2018 - 9:45 AM valerit1 QUOTE (Box @ Feb 22, 2018 - 12:23 AM... Feb 22, 2018 - 9:53 AM Box What you really have to worry about though is them... Feb 22, 2018 - 12:29 AM Wild202 Why did you decide that you do not have problems w... Feb 22, 2018 - 3:35 AM valerit1 Any suggestion where how to get pics shown all the... Feb 22, 2018 - 9:59 AM slavie In my 99 5SFE Camry with ~140k, the OEM hose (same... Feb 22, 2018 - 10:25 AM valerit1 Here is a problem which baffles me. This happened ... Feb 22, 2018 - 10:44 AM slavie QUOTE (valerit1 @ Feb 22, 2018 - 11... Feb 23, 2018 - 10:12 PM valerit1 https://imgur.com/a/hbl3q Feb 22, 2018 - 10:54 AM |
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