2.0 8V bottom end rebuild (by idiots)

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Dieselman
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Re: 2.0 8V bottom end rebuild (by idiots)

Post by Dieselman » Sun Jan 26, 2025 10:01 am

A better video for the home mechanic, though I would still use a separate flat surface, such as glass for the sanding part.

At the end of he day, as long as the head is flat and smooth, it will work.

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bump_drft
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Re: 2.0 8V bottom end rebuild (by idiots)

Post by bump_drft » Tue Jan 28, 2025 6:58 pm

Thank you for all that

The main issue we see other than the head gasket is this pitting in the cam



The only replacement I've seen has similar pitting unfortunately

Trying to suss out how much is normal on a motor such as this
1990 2.0i 5-speed
Located in New Orleans, USA

bump_drft
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Re: 2.0 8V bottom end rebuild (by idiots)

Post by bump_drft » Tue Jan 28, 2025 7:02 pm

I think the head gasket failed more recently, as it only started showing symptoms of low compression recently. It happened quite suddenly and I only did two trips to two car shows on it, so hopefully damange is minimal. Bores look good but the pitting in the cam is worrying. I've yet to see the condition of the bearings.
1990 2.0i 5-speed
Located in New Orleans, USA

Dieselman
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Re: 2.0 8V bottom end rebuild (by idiots)

Post by Dieselman » Wed Jan 29, 2025 7:44 am

The cam has obviously been starved of oil, check the tappets also.

I wouldn't think obtaining a cam will be too difficult, the R6a engine was the most widely used for Series 1, Xm. It may be possible to have that cam reground to the original contour, but you would need to use thicker valve shims.
92 2.1SED M.RP5740 ECZ Sable Phenicien
92 3.0 V6-24.Rp 5713 EXY Black
92 2.1SD M.RP 5685 ENT Blue Sideral
Prev
90 2.1SD M.RP 5049 EJV Mandarin
92 2.1SD A.RP 5698 EJV Mandarin
94 2.1SD A.RP 6218 ERT Triton Green
91 2.0SI M.RP 5187 EWT White

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