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The engine I'm rebuilding (Skoda Estelle/120, 70's, RWD, rear mounted engine) has a mix of different washers in its con rod bolts: some were tabbed washers, other spring washers... two or three bolts didn't have one whatsoever!

The engine was working just fine, however as I'm rebuilding it to a better state the question arises: should I only use tabbed washers for the con rod nuts, or can I use spring washers instead?

The fasteners are M8 x 1.25...the torque is to be between 18 and 20 lbs.

EDIT:

  • Tabbed washer, from catalog:

    Tabbed washer

  • Con rod nut, from catalog:

    Con rod nut

  • Parts catalog exploded view:

    Parts catalog exploded assembly

Zaid
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Aram Alvarez
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1 Answers1

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I would use the tabbed washers : they don't affect the torque reading as once the nut is torqued, they bend easily and just lock the nut into place. Loctite - if available - may not always be effective if the parts are not clean. Tabs work if the parts are clean or dirty.

Solar Mike
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