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Old 15th October 2020, 09:18   #11
mh007
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MG ZT260 SE, MG ZT190+, MG ZTT 160, R75 Conn SE 2.0, R75 Conn SE 2.5 X 3, R75 Club SE 1.8, P5B Coupe

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No cure available so think of it as a way of life rather than an addiction!

I have two in Arran White (NNX - aka Old English White), a colour that suits the 75's body shape/style beautifully.
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Old 15th October 2020, 10:12   #12
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75 CDT SE 160 Saloon

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picture:



My trusty Freelander did the transportation job greatly. A task that is less complicated than adding pictures to this forum..... Photobucket was great to use, but we all know that this do not work properly anymore

I use Imgur.. Works well and is easy to use both for pictures and forums
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Glutton for punishment ---2.6 SD1 x 2, 3.5 SD1, 820S, 820Si x2, 216 Glsi, 220T saloon, 414, 45 1.4 x2 and now a Cowley 75 CDT
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Old 16th October 2020, 09:35   #13
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Rover 75 2.0 V6 Auto

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Not much done on this project yet, but I used some time yesterday to get a better overview. Most brake and suspension parts looks good. The car has only don 1000miles since its last MOT 2 years ago, so there should not be any big surprizes there.

The undercarriage looks to be in a fabulous good state. Rear sills are firm. The car has a sticker in the rear window stating that the car has had an antirust treatment. I contacted the company on the sticker and got confirmed that the undercarriage and body cavities has sprayed with "Tectyl" July -03 and July -06!! That is a great bonus!!

Cleaning up the plenum chamber and rodding its drain was performed and the battery put on charging at the end of the day. It always brings peace to mind when having that task done.

More updates to come, hope I get the cylinder head out of the car during this weekend. That will probably reveal some of its history/state and be the base on how to proceed with the best possible HG solution. I want to go for the N-series gasket, but the state of the liners and cylinder head will decide this.
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Old 17th October 2020, 08:59   #14
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And now the fun begins











Seems like it was on its original HG. Cylinder head never skimmed (119mm). Deep indents in cylinder head, so this one is probably cooked to scrap. Liners stands proud 0.025-0.05mm above block deck. Need to take some more measurements after cleanup. Not sure how to approach the repair at the moment. Have to check the condition of the two other cylinder heads I have stored somewhere first
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Old 18th October 2020, 10:24   #15
Discofan
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Who knew that K series engines doubled as chocolate fountains? You could hire that out for wedding parties.
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Old 18th October 2020, 10:38   #16
mh007
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MG ZT260 SE, MG ZT190+, MG ZTT 160, R75 Conn SE 2.0, R75 Conn SE 2.5 X 3, R75 Club SE 1.8, P5B Coupe

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And now the fun begins

Seems like it was on its original HG
Looking at those plastic dowels, I would agree
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Old 18th October 2020, 16:39   #17
beinet1
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Update:

I have done some closer inspection to this engine now. Not easy to get a accurate measurement of the liner stand proud, but they seems to be close to 0.001"(0.025mm) above the block deck. The cylinder head has deep fire-ring indentaions, so its considered as scrap. I have two other cylinder heads on the bench, both removed from running engines. Both have some minor indents from the fire rings, but I guess this is normal. no.1 had an MLS gasket fitted and is overskimmed down to 118mm. The other one had an elastomer gasket togehter with a 0,5mm head saver shim fitted. Its height is 118,4mm.

None of the cylinder heads will take an N-series gasket I assume. I will favour a solution where a head saver shim is used as it will compensate for the overskimming done and is also forgiving to other cylinder head issues. I will not use a "wellseal" fitted shim, so then it all ends up with the MLS alternative.

At the moment, I think a resonable solution is to raise the cylinder liners with liner shims so the stand proud is 0.004"-0.005" and fit everything together with a preium MLS gasket (Victor Reinz) and uprated oil rail. I am not sure if the higher tensile bolts is needed?

Any comments/Advice is greatly welcome
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Old 18th October 2020, 19:31   #18
mh007
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Have you considered the uprated Payen elastomer head gasket? much more forgiving with liner height.
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Old 19th October 2020, 04:34   #19
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Quote:
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Have you considered the uprated Payen elastomer head gasket? much more forgiving with liner height.
You are right about that, and this gasket could be fitted directly to my block as-is. Regarding the state of my cylinder heads, I do not have the guts to fit this gasket directly to it without a saver shim. So I will basically do the extra work to shim the liners to make the block MLS/Nserie gasket ready. Feeling no of the alternatives is both right or wrong... Doing the decisions is the charming thing of repairing a K-series engine...
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