nzpathy

Hi. I've removed the engine mounts from a 1982 RX7. I can't figure out how to remove the old rubber mounts from the face plate (the round metal plate that sit against the engine block). Is the engine mount bolt threaded through the plate (so I'd have to unscrew it)...or is being held in place by an adhesive (in which case I'll scrape and bash it out)? I spent 30 minutes battling and figured there must be some knack to it. Thanks.

LongDuck

Installed my engine mounts just this afternoon, and I don't even think the rubber is designed to come out of the steel disks. I'm thinking they're manufactured and glued to be pretty permanent.

Do you have replacement rubber components that fit these mounts? Most guys just buy new mounts when needed, or drill hockey pucks if they want solid mounting on a racecar.

This is what you're looking at, right? (*note, they have a plastic cap covering the threads in this picture):

If so, I don't believe those have removable/replaceable rubber components,

nzpathy

Yes, that's exactly it. The replacement mounts i purchased are just the rubber part with the integrated bolts. I'm assuming tye metal disk is needed when replacing the rubber mounts? I guess the other option is to try and cut the old rubber out and knock out/drill the bolt... But that looks time consuming.

peejay

Looks like you got the wrong parts, then.

That upper "cup" is part of the mount. The lower cup (which is, indeed, separate) fit inside and acts as a rotational stop.

Jeff20B

iTrader: (13)

The lower cup is not a rotational stop as it has no high spot like the upper "cup" does. Instead, the lower cup is for the upper part to bottom out on during high torque loads.

NCross

iTrader: (18)

Yeah theyre not like FC mounts with the dimple on them. I guess you could torch the old one out...

Jeff20B

iTrader: (13)

No reason to. The lower cup is what you reuse, and it comes off easily.

peejay

That is what I meant. It keeps the engine from rotating around its axis.

Jeff20B

iTrader: (13)

Oh I see. Keeps engine from rotating, not motor mount itself.

nzpathy

Thanks. I cut the rubber off from the top cup and used a heat gun to aid removal of the vulcanising, then cut/ground out the top bolt. So now I can sandwich the rubber mount between the two metal cups.