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Cam cap sealant missing: side-effects?

Practical Engine Building

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Hi everyone.

I have put about 40k km on the first engine I rebuild and am ironing out minor details with the whole package (Mods, tune, maintenance).

One thing I missed was the sealant thats required between the high pressure fuel pump and the rest of the cylinder head. Unfortunately the service manual I was following did not have this detail.

Was hoping to pick some brains here on what you think the side effects would be if this step was missed?




worst case is a small weep of oil from there

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