Another head gasket failure!

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Another head gasket failure!

Postby Fetnas » Sat 13.01.2018, 04:52

This follows on from a topic under ignition and timing.

So after doing quite a bit of preventative work on the elan (brakes lines, timing belt, water pump, brake master cylinder), and some reactionary repairs (new CAS, new ICM) I now find that the head gasket has failed.

I did a compression test on all cylinders, had 9.5 bar in cylinder 1, 6.5 bar in cylinder 2, 8 bar in cylinder 3 and 9.6 of bar in cylinder 4. These pressures are all probably a bit low, but the guage was cheap one, so the absolute figures aren't of concern, it's more the relative low pressure in cylinder 2.

I also did a leak down test. Cylinder 1 had almost no leakage, 2 had high leakage, cylinder 3 leaked but not as bad a 2, and cylinder 4 was leaking past the rings into the crank case, even after putting some oil in the cylinder. Not sure what's going on with 4, but the head has to come off anyway, so I'll inspect it for further problems then. I find it odd that the compression is good in 4 but the leak down was bad?

I've read through forum posts about the available gaskets, so I know that the recommended option is the official Lotus item from SJ. I plan to get a full gasket set, but I don't understand why the turbo gasket set is almost twice the price of the NA set? Sure there are more gaskets in the turbo set, but not that many.

Oh well, it's only money and once it's done, I know it'll be good for another 20+ years. Then it's time to drive the thing! :burnout:
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Re: Another head gasket failure!

Postby clemo » Sat 13.01.2018, 16:01

Oh man sorry to hear of your engine woes .Especially with all the work you are doing at the mo . Though as you say at least you are future proofing your car .

The NA has different waterway or something like that . So it wouldn't fit .

I will be going up to SJ's next week if i can be of any help to you .
Jim Clark S2 on the way . The one with the Yellow spoke wheels .
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Re: Another head gasket failure!

Postby Fetnas » Sun 14.01.2018, 06:31

Hi Clemo,
Thanks for the offer with you SJ visit.

I just found yesterday that a local Lotus specialist that's very close to where I work stocks a head gasket set. I'll give them a call next week, much better value than SJ also. That said, if I'm not 100% happy with the quality of the gasket, I might still go the SJ way. It's good to have options.
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Re: Another head gasket failure!

Postby alan e » Sun 14.01.2018, 17:24

I will be in Melbourne at the end of April if you can wait that long I can bring the kit over with me that will save you the postage cost if its any help.
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Re: Another head gasket failure!

Postby Fetnas » Mon 15.01.2018, 22:22

Hi Alan, thanks again for personal courier offer, but after speaking to the local supplier yesterday and ending up having a 10 minute chat with the owner, I'll be getting the parts through him. So no need to deal with shipping from the UK.
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