Monday, July 20, 2009

Lambretta tool set part #2

I want to make my own silent block (engine buffer) extrator/installer tool. I found these instructions in the LCUSA archive. The detailed photographs are helpful. I also asked fellow LCUSA members how they have done it and here is the response I got:

The original BBS thread here:

artclone
Member since Apr-29-03
20 posts Mar-12-04, 09:37 PM (EDT)
"RE: Lambretta Engine Silent blocks removal"
In response to message #1


I followed instructions I found on this list - do a search. The instructions below are good, but the original was better.

It is easy to make a good puller/press yourself. Bring your silent block to the local hardware store. I went to ACE. You can make a puller with standard, non-metric, parts - pipe and nuts, bolt, and washers.

There is no way to break a case using this puller. Broken cases are caused when people use hammers to do this job.

Go to the plumbing section and get a standard iron pipe wide enough to just fit over the silentblock (sb from now on) and a touch longer than the length of the sb. This is needed to pull the old silent block out.

Get 2 giant washers as wide as the outside of the pipe. These will be used for pulling and pressing.

Get 4 smaller washers as wide as the sb small end (the right ones will be a touch narrower) These will pull out the sb from the inside.

Get a bolt a bit longer than the pipe and 1/2 the silentblock and 6 washers and nut together, but not too long. It should be just narrower than the hole in the silent block.

Get a nut and a spare to fit the bolt

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this works perfectly every time. you pull the old sb out using all parts - slip the pipe over the old sb. Insert bolt and 2 small washers from inside of engine mount; nut, small and large washers on the outside. Tighten nut and bolt until sb comes out. Use heat if you really think you need to, but if the mount isn't coming out, the problem is probably with the way you are using the puller.

Check new sb and engine mount surfaces for obstructions and sand off if needed. Lightly grease the outside of the new silent block and the inside of the engine mount, gently tap sb in the case just a bit with a rubber mallet. Putting a new sb requires the bolt, nut, and 2 small and 1 large washer on both the inside and outside. Put bolt through outside this time. Press new sb in by tightening nut and bolt.

Here's a good picture of the real deal i found as well.

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