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#1
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The old temp needle moving around on me today on track at Snetterton...Coolant overflow\reservoir overfilled at least twice, feel like I noticed the initial signs at Brands Hatch in June.
Pretty sure my head gasket is in need of replacing...At least I've had 35K miles and spent a load of money first 😅 Recommendations, experiences, repair horror stories all welcome. If there are a few old threads you recommend on here I'd love to read through! Based on limited intel, I believe if I do pay to get the job done, I shouldn't have any issues with after market head gaskets which are stronger than OEM ones. Is this anyones experience\understanding too? Notes (for those interested): No discoloration in oil (dip or lid). Intermittent problem (reservoir was at its normal max when hot in between during morning track session). There was some very mild brown sludge in reservoir tank, but wouldn't have said it was oil. Coolant was boiling (bubbling) when hot off track (only checked on the 2 occasions the temp needle moved though). No leak from lower hose visible (had that not long after buying in 2017). OEM radiator fitted Q42017 after above issues with lower hose. Sent from my XQ-AS52 using Tapatalk |
#2
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1996 Sti wagon HG woe back in 2014. Symptoms were overheating and coolant bubbling in the overflow.
(Thread under general mechanics page 6 'Wayne's World'). Good luck with getting it sorted.
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Type 25 + 96 jdm sti wagon ![]() ![]() |
#3
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If I don't want to go down forging route and just want to replace head gasket with something like a cosworth would you be worried if it was you? Looks like you went forged route but I'm not as interested in spending that kind of money on what is already a big old pit 😅 I've already spend a fortune uprating brakes this year 🤦🏻 Would you say a sniff test is pointless to confirm? My garage (Extreme Scoobies) is 2hr round trip and he doesn't have space to keep it until he can do the job (approx 3 months wait), so if it should be confirmed I would have to go to a basic local garage first as I don't know any others locally... Sent from my XQ-AS52 using Tapatalk |
#4
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Sounds like similar symptoms to what I had on my old engine. Pushed coolant out the top of overflow bottle when it was at the Ring, bit of bubbling in there too, and the temp needle when up high during a lap. Only had an issue on track on hot days (I'm guessing it was pretty warm at Snetterton yesterday!)
Not sure I ever got to the root of the problem on it though. Worth getting it sniff tested, mine came back OK. I changed the radiator, thermostat and a few other things and did another full day at Bedford and no overheating issues, but ambient temperature was much lower than a hot summers day. So not conclusive either way. My original radiator at 14 years old was knackered - I swapped it out in 2016. All the fins were turning to dust and flaked off if you ran your finger down it. I guess your hawk will be at that same age now if you're still on the original rad. Not sure how much the radiators efficiency drops when its like that but it can't help. Worth changing if you haven't already. This was my old one: ![]() |
#5
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#6
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As Steve said get it tested first. When mine was at Carnetix, it was stripped to confirm their diagnosis.
I was lucky I guess in I only had to have the heads skimmed and new bearings plus gaskets etc. Pistons and crank were good so not replaced. Happy to dig out costs for you but at 2014 prices guess in won't help much?
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Type 25 + 96 jdm sti wagon ![]() ![]() |
#7
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My bad, I just realised you said you'd already changed the radiator in your first post
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#8
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Read on another forum it could be hot turbo cooling...OP first entry and then the final couple posts around 2020 where OP agreed with someone who suggested it. Get the impression they never "fixed" anything. Guessing by what you've said, except new rad, you've also not done anything?? https://www.scoobynet.com/engine-man...t-failure.html Looking at getting an OBDII device and Android app to try and monitor temperature and take it for a drive...Any experience there? I'm hesitant to take it out again, in case it is the head gasket, as I don't want to cause more damage (if it is). Local garage can sniff test Wednesday.. Sent from my XQ-AS52 using Tapatalk |
#9
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I tried the obvious things first and didn't do much else for 4 years as it never overheated again. Maybe I fixed it, maybe I didn't push it as hard on a hot day afterwards. It went back to the ring the year after and didn't overheat but I only got a few laps in due to a different issue (stuck actuator killed boost
![]() I changed radiator, hoses, thermostat and header tap cap in case that was leaking or the spring knackered. And then stopped there until I decided to engine swap last year. The old engine is still on a stand (thanks Dave ![]() If it is the head gaskets, then i doubt you can cause any more damage unless it overheats on normal driving. Check coolant levels are topped back up depending on how much got pushed out the reservoir. And if it does overheat on normal driving, then its a lot worse than mine ever was... Hopefully you'll get more info on Wednesday! |
#10
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Head Gasket confirmed by sniff test, it'll go in for surgery in a month or so! 😅😁
Sent from my XQ-AS52 using Tapatalk |
#11
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we carry pretty much everything required from gaskets to uprated parts as required
0191-4103770
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![]() ASPerformance 0191-4103770 PELTOR, PFC BRAKES, PAGID MOTUL, FERODO, SPEEDLINE, TRS, MINTEX, PIAA, HELLA, TEIN, WHITELINE, SUPER-PRO, MILLERS OILS online shop!! |
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