What did you do to your 2002 today !

[cdbeemin]

1 hour ago, Rodolfo Lasparri said:

My '73 Tii 5K post rebuild when I'd checked (very tight motor) was  1/176, 2/175, 3/177, 4/181. So no worries on your numbers

Thanks. Exactly what I hoped to hear!

[Rodolfo Lasparri]

1 hour ago, PaulTWinterton said:

@cdbeemin

 

My tii has 120k original miles on the clock.  Cold my compression #s are 130-135-135-140, while hot the values increase to 175-175-170-175.  

 

If your #s are taken while cold you are doing well, IMHO.

+1 my values above were cold too.

['76mintgrün'02]

1 hour ago, Son of Marty said:

Cap coming off on a hard pull is usually caused by a bad engine mount.

 

Good point, Marty.

 

On a 123 distributor it is usually caused by weak clips not holding the cap securely.  The metal is not strong spring steel, like on the Bosch units.  They are easily bent and need to be reshaped to get a grip.  I've seen where people have run a zip-tie around the top of the clips to keep them in place, which seems like a good idea.

 

Another thing to be aware of is that their rotor is not the standard style used in the Bosch models.  They machined a step on the center post that is smaller and it requires that you use one of their rotors.  The larger ones can wiggle loose and hit the cap, possibly knocking it off, or just chewing it up.

 

There was a discussion on those rotors which suggested that the earliest style 2002 Bosch used one that will work.  The old cast iron distributors have a stepped center post as well.

 

Here is that discussion--

 

 

Tom

 

[Leucadian]

27 minutes ago, '76mintgrün'02 said:

 

Good point, Marty.

 

On a 123 distributor it is usually caused by weak clips not holding the cap securely.  The metal is not strong spring steel, like on the Bosch units.  They are easily bent and need to be reshaped to get a grip.  I've seen where people have run a zip-tie around the top of the clips to keep them in place, which seems like a good idea.

 

Another thing to be aware of is that their rotor is not the standard style used in the Bosch models.  They machined a step on the center post that is smaller and it requires that you use one of their rotors.  The larger ones can wiggle loose and hit the cap, possibly knocking it off, or just chewing it up.

 

There was a discussion on those rotors which suggested that the earliest style 2002 Bosch used one that will work.  The old cast iron distributors have a stepped center post as well.

 

Here is that discussion--

 

 

Tom

 

 

Thanks all,

 

I poured through all the 123 Dizzy threads and ruled out engine mounts, while making sure to order the new cap and rotor directly from 123.  The residue in the cap, in addition to my intermittent smoke on decel, blow-by in the catch can, and weeping valve cover cap makes me think I'm dealing with increased crankcase pressure due to bad rings or valve guides/seals.

 

Engine was rebuilt 8k miles ago, valve cover is vented to a catch can, which connects to the air filter on my 38/38

 

The clips probably did fail, it's the cap residue that worries me.  I'll know more once I run compression/leak down test

 

 

['76mintgrün'02]

Some people get puddles of oil coming up into their 123 distributors.  They did not cut a spiral groove in the shaft the way Bosch did, to keep the oil from coming up.  They just added a little O-ring, which doesn't always work.  They do blame excessive pressure, but I don't believe that is the root cause.  It is a design flaw, or short cut, in my humble opinion.

Tom

 

one of the groovy shaft discussions --

 

 

Edited July 12, 2021 by '76mintgrün'02

[Leucadian]

34 minutes ago, '76mintgrün'02 said:

 

one of the groovy shaft discussions --

 

 

Well played!

[flagoworld]

2 hours ago, '76mintgrün'02 said:

Some people get puddles of oil coming up into their 123 distributors.  They did not cut a spiral groove in the shaft the way Bosch did, to keep the oil from coming up.  They just added a little O-ring, which doesn't always work.  They do blame excessive pressure, but I don't believe that is the root cause.  It is a design flaw, or short cut, in my humble opinion.

Tom

 

one of the groovy shaft discussions --

 

 

 

Be that as it may, too much pressure may also overcome the bosch dizzies. As was my case, even with the groove it still pushed up into the upper housing. Pretty sure it’s a compression ring thing. That was my takeaway after all the discussion.

['76mintgrün'02]

6 minutes ago, flagoworld said:

Be that as it may

 

It would have been interesting to see if you had the same problem with a different Bosch distributor.

How is the chopped top e21 distributor project coming along?

 

Tom

 

 

[flagoworld]

24 minutes ago, '76mintgrün'02 said:

 

It would have been interesting to see if you had the same problem with a different Bosch distributor.

How is the chopped top e21 distributor project coming along?

 

Tom

 

 

 

Finished that a while ago. Haven’t installed it yet because ive just been driving and dialing in little things. When I install it ill let ya know!

 

 

[jp5Touring]

[jp5Touring]

Couple of pictures from DeutscheMarques Show stolen from facebook.

Over 475 German cars, perfect weather and a great show. 

[Mike G]

Replaced the left caliper that was sticking. Bought one for the right side as well but didn’t have time to do both. 
 

 

[SydneyTii]

6 hours ago, jp5Touring said:

 

I know they are ubiquitous but minilite style whilst not everyone’s taste, look lovely on an 02… OEM looks pretty good too ??

[PapaG]

Cleaned up the rust on my pedal box to see how bad it really is. Will be trying to do some welding on this in the next week or two. Assuming it can be repaired adequately, it will then be off for powder coating. 

 

 

[rstclark]

@ Son of Marty

Never heard of a cap and rotor problem caused by a motor mount issue 

Can you expand on this ?

Knowing this car , the driver side of the subframe is good and the mounts are relatively new  Of course a motor mount can come apart at any time   This is a 150 hp built motor and runs strong BTW