K series head gasket
Author
Discussion

iainh

Original Poster:

2 posts

227 months

Thursday 6th December 2007
quotequote all
I am about to buy a second-hand lotus elise. I read all sorts of things about K series head gasket failure. My question is this: what work can be done before any trouble is suspected, to make failure less likely in the future? Is this approach worthwhile?

best regards, iain

kambites

71,668 posts

252 months

Thursday 6th December 2007
quotequote all
Well you can replace the head gasket with a better one but that'll cost you as much as getting a broken one fixed...

The most important thing is to keep an eye on the coolant level (the K-series has a very low coolant capacity) and to avoid reving the engine before the oil is up to temperature. The head gasket only costs 800 quid to sort anyway so it's not worth spending silly money to avoid the problem. If it does go, just make sure it's sorted properly. Some people on here have bought third party warranties to cover themselves against HGF.

boobles

15,251 posts

246 months

Thursday 6th December 2007
quotequote all
kambites said:
Well you can replace the head gasket with a better one but that'll cost you as much as getting a broken one fixed...

The most important thing is to keep an eye on the coolant level (the K-series has a very low coolant capacity) and to avoid reving the engine before the oil is up to temperature. The head gasket only costs 800 quid to sort anyway so it's not worth spending silly money to avoid the problem. If it does go, just make sure it's sorted properly. Some people on here have bought third party warranties to cover themselves against HGF.
Seconded.

lotustuart

1,465 posts

262 months

Thursday 6th December 2007
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AA warranty sorted mine!! best £65 I ever spent!

peter2704

237 posts

239 months

Thursday 6th December 2007
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you shoud get it done cheaper than £800 ,also maybe fit a prrt, may help

iainh

Original Poster:

2 posts

227 months

Friday 7th December 2007
quotequote all
Thanks all. Doesnt sound too bad!
Has anyone fitted a PRRT, and had subsequent head gasket failure?

best regards, iain

Paul RN

1,168 posts

245 months

Friday 7th December 2007
quotequote all
lotustuart said:
AA warranty sorted mine!! best £65 I ever spent!
Not had to use mine yet, but the best piece of mind you can get for £65.

Tin Hat

1,430 posts

240 months

Friday 7th December 2007
quotequote all
iainh said:
Thanks all. Doesnt sound too bad!
Has anyone fitted a PRRT, and had subsequent head gasket failure?

best regards, iain
This issue tends to be a monthly post on here, I can remember reading about someone having HGF, even with a PRRT.

Wouldn't let it put you off, they are cracking lightweight engines and if you follow the advice in the first post, HGF will be pretty unlikely!

tyronbarrett

25 posts

302 months

Sunday 9th December 2007
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Had a HGF on mine in the past and had a scare this weekend with the car running at high 90s even whilst driving at a moderate pace. Ended up getting the car towed home rather than continue driving at high temp. With this in mind...

kambites said:
The most important thing is to keep an eye on the coolant level (the K-series has a very low coolant capacity)
Funnily enough, on inspection noticed the coolant level was very low. When the HGF occured originally the car was drinking like marathon runner at the finish line, so was watching this like a hawk for months after the repair and it seemed very constant, admit I have lapsed a bit lately and hadn't looked at it for a week or so. Should the car use coolant in normal usage? If so, how often/much should I expect to top-up?

kambites said:
avoid reving the engine before the oil is up to temperature.
What's a good guide for judging this, bearing in mind I don't have an oil temp guage on my Stack?

kambites

71,668 posts

252 months

Monday 10th December 2007
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tyronbarrett said:
Should the car use coolant in normal usage? If so, how often/much should I expect to top-up?
Mine sits dead in the middle, between max and min, and never uses any water. However, I have heard other people say that their car will immediately expel any water that's above the minimum mark and then sit happily on the minimum mark thereafter. Once the level has stabilised, the engine shouldn't use any water.

tyronbarrett said:
What's a good guide for judging this, bearing in mind I don't have an oil temp guage on my Stack?
I think people on here usual recommend being careful for 10-15 minutes after the water hits a stable running temperature. Personally I only leave it about 5 minutes after the water is up to temperature but the careful people may well be right.

bencollins

3,574 posts

236 months

Monday 10th December 2007
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This is well written;
http://www.mgcars.org.uk/cgi-bin/gen5?runprog=mgoc...

Is it not worth a pre-emptive strike, fitting a LR gasket and maybe changing the belts at the same time, for peace of mind? Wouldn't want to not rev the engine or have the background stress shadow stalking me.
Changing the subject, how come the Toyota engine is so much heavier the the K?ears