Thanks Sean and Dave, much reassured!
jp 83 Euro S AT 57k

 

I've never had to use heat. The designed "press fit" is .0007"...


I'm always "torn" about providing instructions.
I can't remember the last time anything I bought from Porsche came with instructions, much less anything I bought from a regular auto parts store.
I take a bunch of time writing detailed instructions for everything I build, simply as a courtesy for people. The damper installation instructions are 4 pages long with pictures. My "new clutch" comes with eight pages of detailed instructions...
I'm counting on people to have enough mechanical ability to be able to reverse the procedure.

 

On the one hand, while the WSM & PET show a lot of what we need to know, putting on an aftermarket piece often is just a bit different. And the differences can be both subtle enough to miss and important enough to cause a problem. In this case, the tight fit needing heat to install would be an important difference from stock. My experience has been that 'heat to install' is usually countered by 'use a puller to remove'. But not always. So directions on this sort of thing are nice.

OTOH...

https://www.telegraph.co.uk/books/au...ng-and-thanks/

 

Just finished a complete TB, water pump, PorKensioner overhaul and GB harmonic balancer job.
In my case the harmonic balancer made a noticeable difference. There was always a slight vibration feelable through the accelerator pedal at certain RPMs. Now it's gone. Good product and one of the parts that should be on the to do list, when the TB has to be changed. From the outside my factory harmonic balancer was still in good shape but after 28 years, it was just time for this part to be replaced.
Good product, thanks Greg!

Intank pump repair with a GB hose kit is next on the winter project list...

 

My machinist has a harmonic balancer installation kit and machined an adapter that matches the threads of our crankshaft. I'm hoping this will help me install the GB Super Damper.

M18 1.5 Thread adapter to press on a harmonic damper pictured in the center above.

 

You won't need it. Heat the hub as directed, oil the snout and it slides right on. You will need a hub puller to remove it though, no heat required.

 

Real men don't read the instructions.


jk, although it's generally true, real or unreal.

 

Unless all else fails.
jp 83 Euro S AT 57k

 

Including the 5lb sledge hammer.

Oh, BTW, I did want to say "I don't know." to your previous question, but I figured you knew that.

 

"real men don't read the instructions." Generally they do after the "I know how to do this!" wears off, hopefully before the part is damaged. If it is, well, that's what warranties are for!

Many years ago I packaged an interesting repair/rebuild kit for a small precision perfume metering pump. I had to tie a tag to the main parts -- "please, try our way first!" but still had complaints from supposedly capable technicians who knew better right up to the point where they destroyed the $precious$ teflon seals. Then read the instructions, then called to try and get some replacement pieces for free.

For most cars, a puller is the standard method for removing a harmonic balancer. They are supposed to be a slight interference, as Greg's is by design. The factory piece is a design aberation really, since the torsional vibration really demands a really tight assembly.

 

I put the hub on today.

First attempt @ 300 degrees failed. Hit the woodruff key edge. Pulled it back off and let the crankshaft cool down.

Second attempt was successful. Slid on like butter.

 

Just ordered from Roger last week, and then found out the parts were NA/in-process again.....any idea on when the next batch of HUBS will be available? I'm prepping my car for Sharks in the Badlands and my HB is delaminating....no part no go...I'm putting a call into to Roger, then found this thread and just thought I'd ask directly...if it's a logistical impossibility (i.e. you know they won't be done anytime soon), then I can cancel the plans. Thanks.

Dan

 

Greg has been overwhelmed. Very sorry. At 68 years old, I've found I can only work 84 hours a week. Getting old sucks.
There is no shortage of hubs....I've got a couple boxes of these which contain....many, many hubs. (My CNC guy "lost his mind" when building the last "batch" of hubs.)

I personally inspect and assemble each and every product which leaves my facility. Quality control is of the highest priority. If I haven't measured it, inspected it, made sure it is perfect...it simply doesn't get shipped.

I worked yesterday to prepare four dampers for Roger, which should ship to him, today. Four more dampers should follow later this week.
If you are in a real panic, have Roger drop ship a damper from us directly to you. (We do this, for Roger, all the time....it actually saves shipping costs!)

 

BLESS YOU and I will suggest that...this also makes my summer. I hope you know how much we all appreciate your skill and advice. I now feel guilty you had to spend time responding...almost. Thanks again.

Dan

 

I've got OCD, down to the bone....it's no secret.
Something I've been obsessive about, my entire life:
"You're only as good as the last job you did...or the last product you shipped out."

I'd rather have people pissed at me for being too busy to get to their order or finish their job than to ship out something that isn't as perfect as I can make it.