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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 02-08-2003, 02:17 PM
Dadofour Dadofour is offline
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Help Installing HMS Roll Bar - Power Top Question

Upper Ball Mount in the way




As you can see, I am in the middle of installing the HMS Roll Bar. I wasn't clear from the instructions on whether I needed to remove the power top piston, so I called HMS, and I must have gotten my wires crossed, because I thought I was told to leave it as is.



That appears to be pretty wrong. The upper Ball Mount is clearly in the way of the installation of the second part of the mounting bracket.



This is the power top piston that needs to be disconnected from the car so it can be dropped down out of the way of the second part of the mounting bracket.

I am pretty sure I will need to disconnect it at the bottom at this second ball mount. The instructions say pry it off with a screw driver, but I do not want to force it, and it isn't coming off easily.



Anyone have experience installing an HMS Roll Bar with a Power Top?? Appreciate any pointers.

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Last edited by Dadofour; 02-08-2003 at 03:55 PM.
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  #2  
Old 02-08-2003, 02:47 PM
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Ron Stygar Ron Stygar is offline
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Randy has the bar but not sure if he has the power top.
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  #3  
Old 02-08-2003, 03:58 PM
Dadofour Dadofour is offline
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Randy had the answer

If you notice the pin at the bottom of the piston. All that is required is pulling that pin forward.

(The pin is under the "T" of Ball Mount in the picture)

The pin must pass behind the ball of the ball joint preventing the the piston from being removed.



Thanks Randy. Nice save!
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  #4  
Old 02-08-2003, 03:58 PM
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Christian Christian is offline
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Someone correct me if I'm wrong, but I was under the impression that you cannot retain the power top when installing an HMS rollbar.
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  #5  
Old 02-08-2003, 04:04 PM
Dadofour Dadofour is offline
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You are correct

The top of the piston myst be disconnected, and cannot be re-attached until you remove the roll bar.
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  #6  
Old 02-08-2003, 04:31 PM
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Randy Forbes Randy Forbes is offline
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Re: Randy had the answer

Quote:
Originally posted by Dadofour
Thanks Randy. Nice save!
Glad to help.
Always a pleasure to talk to you...

Can't you just imagine us in about ten years talking about how to time the VANOS after rebuilding the engine

I just read on some post that timing the VANOS is a twenty-something page procedure!
We'll have to make that a "conference call" with Ron

Notice gap in trim panel I was talking about.
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  #7  
Old 02-08-2003, 04:42 PM
Dadofour Dadofour is offline
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...so my next question in the Roll bar saga...

Did you have any issue fitting the rollbar into the car?

Mine is binding as it gets towards the bottom. I measured the tubes in the car, and one tube could be "aligned" back and in a hair. The instructions mention aligning but do not even start to address how. I can only imagine inserting a pipe all the way in and "whacking at it"

I guess I will call HMS Monday.

Thanks
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  #8  
Old 02-08-2003, 04:49 PM
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RE:I just read on some post that timing the VANOS is a twenty-something page procedure!
We'll have to make that a "conference call" with Ron


Ron will be the guy that we will have to fly first class and 4 star hotels to our home towns to have him repair/help in the future when there is a major malfunction, and for sure if you live in this area the dealer's here are way below par for a car that was in production for 7 years, ill start saving now
i was reading that there are actually lambo techs who do this for a living
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  #9  
Old 02-08-2003, 04:55 PM
Dadofour Dadofour is offline
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...so my next question in the Roll bar saga...

Did you have any issue fitting the rollbar into the car?

Mine is binding as it gets towards the bottom. I measured the tubes in the car, and one tube could be "aligned" back and in a hair. The instructions mention aligning but do not even start to address how. I can only imagine inserting a pipe all the way in and "whacking at it"

I guess I will call HMS Monday.

Thanks
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  #10  
Old 02-08-2003, 05:17 PM
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Randy Forbes Randy Forbes is offline
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Mine would get a little tight towards the bottom, but was easily tapped into place (and back out again).
I used a piece of wood and some gentle taps with one of my knockoff hammers.

With a long enough piece of pipe (say 3') you could "influence" the angle slightly without needing to wail on it with a hammer.
Just work in small increments.
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  #11  
Old 02-08-2003, 05:30 PM
Dadofour Dadofour is offline
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I need to verify the OD of the RollBar

I may wonder by Home Depot or Lowes and see if I can get a 3' section of gas Pipe that fits well.

Good recommendation. Sounds easier than the Double Vanos....
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  #12  
Old 02-10-2003, 01:04 PM
JimR JimR is offline
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Now I have TWO sources for info

Man am I glad to see this thread!

I'm prepping my car to run One Lap of America with my son this Spring. My HMS rollbar and harness bar arrives today or tomorrow. Because of work travel (2 weeks in Tokyo starting with travel from Seattle this Friday) I won't actually do the install until the weekend of March 8,9.

Are there simple things I could do now that would prepare for the install, or should I just wait and do it all at once.

I'm going to finish upgrading the brakes a the same time. Stainless steel lines already on; new Eurosport floating rotors (cryo treated) on the front and OEM rotors (cryo treated) on the rear with Portfield R4S pads.

Any hints or advice much appreciated.

jim
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  #13  
Old 02-11-2003, 06:50 PM
Dadofour Dadofour is offline
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My advise would be to do install when HMS Has phone support available

It is extremely convenient to have HMS available to answer questions. I would be happy to give you my cell or home numbers to answer questions you may have mid install.

I am 1/4 of the way through with the re-installation of the trim pieces. I took a break last night, because I wanted to replace a couple of brass nuts and six plastic screw covers.

I am trying to document the assembly and will post when complete. The hardest part is taking it apart. Putting together has been cake so far (knock on wood).

I don't have the brake experience to give you any aid though.
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  #14  
Old 02-12-2003, 12:40 PM
JimR JimR is offline
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Thumbs up Thanks for your willingness to help

I'm sure that I will be calling you some time during the install. TIA for putting the instructions together for this.

I've got a friend who 's been working as a mechanic for the past 20+ years. He's going to help with the rollbar and brake install. The brake stuff is relatively easy, but it's always good to have a pro looking at the work to make sure!
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  #15  
Old 02-12-2003, 01:59 PM
Dadofour Dadofour is offline
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Finsihed the roll bar install last night

It is the first time I have ever found the re-assembly to be easier than tear down. The back deck went back together in short order with no issues.

The roll bar is in, and the only remaining task is to re-attach the seatbelts, and the cupholder.

Pics and pointers shortly.
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