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16th November 2021, 09:59 | #11 |
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Trikey suggested that I order a new PRT, which I have done. I’ll get that fitted if only for peace of mind. I check the water, and oil, every time I take any of the cars out.
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232750. Be patient Banana, we will soon be back together and enjoying the shows again. onen hag oll |
16th November 2021, 13:32 | #12 |
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I got a new cap from DMGRS a few months ago and almost immediately it started leaking from the overflow and there was steam coming out, i advised DMGRS of this and they sent me out another replacement cap.
I ran with the old cap on until the new replacement cap came and there was no more steam or coolant escaping so looks like there may be a small quantity of faulty caps. I had only decided to change the cap as preventative maintenance type thing and DMGRS were very quick at sorting me out |
16th November 2021, 14:49 | #13 |
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There was a time when some folks simply replaced the o-ring on the cap and good as new. Did anyone ever record the o-ring size for the replacement?
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Southern Slovakia Anything can happen in Formula 1 and usually does - Murray Walker 1999 Triumph Trophy 900, Saddlesore 1600, Iron Butt Riders Association #63720 2005 Rover 75 CDT Tourer MK2 |
16th November 2021, 18:39 | #14 |
I really should get out more.......
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16th November 2021, 23:37 | #15 | |
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Quote:
The thermostat is not "designed" to keep the coolant at 92˚C at all. It is designed to open at a specified temperature range to assist keeping the coolant temperature at an acceptable level. The overall system - of which the thermostat is only 1 part - is designed to keep the coolant at a relatively steady low-mid 90s˚C temperature. A good rule of thumb for the 1.8 is coolant temp 5˚C above the rating of the stat (i.e. for the OEM 88C stat, expect temps of 92/93˚C). The aftermarket stats supplied by DMGRS are rated at 82˚C (so expect temps of 87/88˚C). The other unfortunate side effect of the DMGRS stat is that it opens/closes over a much larger temperature range than the OEM design, so you get much wider temperature swings when coasting, as coolant (already at a lower temperature as the stat opened earlier) is still circulated round the radiator, removing heat faster than it is generated by the "idling" engine. As for how I know this? I have both OEM and DMGRS stats and have done a far few comparative trials - both on and off the car. Incidentally, I've always regretted (solely from a research perspective) binning the original PRT from the car which gave a running temp of 96˚C. Of course, there is a big IF in my original statement that this is only true if the fitted stat is a DMGRS example - if its not, and is a genuine MGR 88C part, it has obvious started opening early and should be replaced. Finally, I'm not sure how you can make any conclusion on the correct (or not) pressurising of the system just on the fact that its not spewing steam out everywhere? Bob absolutely should be vigilant in case there is another problem, but at the end of the day it's a 1.8 with a very simple cooling system. Most problems are incredibly simple in nature and don't need a full scientific investigation, and not every K-series cooling issue leads to HGF... |
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17th November 2021, 08:13 | #16 | ||
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Quote:
Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 17th November 2021 at 08:37.. |
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17th November 2021, 19:55 | #17 | |
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Anyway, if you mean hot coolant was splattering around the top fo the header tank around the filler neck, than that's what it does. It's designed to simply splatter out from under the top of the cap. TC |
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17th November 2021, 21:19 | #18 | |
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We are still getting some coolant loss, checked this morning and it had definitely gone down as the lower level indicator was dry. Acting on advice from another forum member I’m going to book Banana in to have a pressure test. The new PRT has turned up so that might have to be fitted.
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232750. Be patient Banana, we will soon be back together and enjoying the shows again. onen hag oll |
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17th November 2021, 21:52 | #19 | |
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Possibly that with your first coolant loss you entrained some Air in the system and that has lowered your coolant level as the air as worked back to the header tank But fitting the recommended PRT , A proper bleed of the coolant system and a pressure test should find / iron out any problems . Did you order a new cap as well ? |
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17th November 2021, 22:03 | #20 | |
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232750. Be patient Banana, we will soon be back together and enjoying the shows again. onen hag oll |
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