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Re: PANZER IV BUILD no 012
Posted: Wed Nov 30, 2011 10:05 pm
by Nick Farrugia
Hi Steve
thats great news on the plans looking forward to getting them i must add a big thanks for doing this it is mutch appreciated
it must take up some time to do .I have been bolting every thing down, now that i have the rear plate on and putting the bump stops on as well will take more pics when all,s done.have you got any pics of what the inside piece looks like in the exhaust on ausf J version it looks star shaped ,i think its called a defuser or something have not got any clear pics of them.Any thing would be usefull and thanks for your coments .
All the best nick
Re: PANZER IV BUILD no 012
Posted: Wed Nov 30, 2011 11:51 pm
by John Fitzsimons
Having another look at some drawings also. The actual exhaust pipes are inside your shrouds. Top of exhaust pipe lower than top shroud. The outer shroud is quite thin and attached to the exhaust pipe by I think 4 thin strips. I think the purpose of the shroud is to hide the glow from the exhaust at night.
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 4:41 pm
by Nick Farrugia
Hi john
that sounds about right i think i have read this some where ,just carnt seem to find a good picture of one .Thanks for that bit of information it has helped.
regards nick
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 6:02 pm
by Nick Farrugia
Hi to all
I have been bolting every thing down (the bogies bump stops and rear plate plus idler channel to the back ,on fitting the bump stops i noticed that they dont actualy come into contact as i thought they should(arms of the bogies coming to a stop on the rubber pad they stoped well short at least 6mm gap).I contacted (e.mail) gill to ask mark if this is ok .So what i have done for the moment is cut some rubber discs 4mm thick and drilled and taped the bump stop bracket and sandwidged the rubber inbetween the the kit rubber pad as seen in the picture.
in the next picture you should be able to see that with the rubbers in place how far the bogies would have been away from the stops if the extra rubber pads were not their
The rear most bump stop on both sides is slightly lower so only needed one 4mm rubber pad all the rest needed two 4mm pads this allows the arms to compres the rubber cones and not let the arms strike the bogie bodythe next pics show this
I have not had confermation from mark yet if this modification is necesary or corect yet so if you are thinking down the same lines then perhapes it would be better to wait and see.I can easily remove them if i have got it wrong
best wishes to all nick
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 8:10 pm
by John Fitzsimons
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 8:26 pm
by Steve Lewington
Hi John
I thought I was a reference nut (According to my wife) nice to see I’m not the only one who keeps anything and everything that may be of use/ interest.
Welcome to my world LOL
Your in very good hands Nick.
Regards
Steve
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 8:32 pm
by Steve Lewington
Hi Guys
Forgot to say in my last post all being well our 1/6 plans should be in print within the next two weeks.
Regards
Steve
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 9:48 pm
by Nick Farrugia
Hello john
that picture looking down the tube is the one, its the best i have seen so far and thats what i will go with thanks very mutch it,s appreciated.BIG HELP
Hi steve
thats good news on the plans looking forward to their arrival
all the best to you both nick
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 9:52 pm
by John Fitzsimons
No problem Nick. Glad I could help.
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 11:46 pm
by Robert E Morey
Hi Nick,
Are you sure you would need the extra rubber disks on the bump stops? From your photos it looks like adding them will severly limit the suspension travel of the bogeys. It might make your suspension too stiff. I agree they should be added if the leaf springs can be overtaxed and bent, or pulled out. Otherwise not sure why you would limit the travel of the arms. Just thinking out loud
Perhaps Mark can advise on this modification?
Looking really good, I'm enjoying your progress,
Best regards,
Bob
Re: PANZER IV BUILD no 012
Posted: Thu Dec 01, 2011 11:54 pm
by John Fitzsimons
I reakon Mark has these well tested and knows what he is about. My Tiger bump stops are a long way off touching the arms but expect they will contact under extreme flex. Might be better to go with kit gear first and if necessary modify later. I wonder if anybody is thinking of making a more accurate bump stop. I might try somthing in white metal.
Nick, did you consider some of Steve Winstone's castellated nuts for the boggies. The centre nut on the round front.
I have some measurements of some of the nuts and bolts on the panzer IV from Belgrade. Unfortunately measured with a ruler rather than calliper.
Here is a link to photos in photobucket.
http://s904.photobucket.com/albums/ac24 ... nzer%20IV/
Re: PANZER IV BUILD no 012
Posted: Fri Dec 02, 2011 6:52 pm
by Nick Farrugia
Hi Bob
i have checked the bogeys again and have got a bit of a mixed bag
i did all this without tightening all the bolts up and have found that the two bottom bolts were fowling the arms just a bit ,so i sorted that problem out and started again .Now i find that the rear most bump stop is ok and doesnt need any extra rubber but the forward facing arm needs one, the arm goes to full travel and doesnt touch the stop ,now the way i see the suspension working is that each wheel on a set of bogeys work against eachother so in practice they may never touch the bump stop but the bump stop is their for a reason and i would have thought that it should be able to touch the arm but it wont because the arm runs out travel see pics
in this picture you should be able to see a gap between the the stop and the arm this is with no extra rubbers the rear one doesnt need any extra rubber now
thats the one on the right side of the picture the one on the left doesnt touch the arm on full movement.
It is worth mentioning that the rear stop is positioned slitly lower than all the other stops and this is corect and how i have seen it on drawings ,this is a picture of another bogey with the same problem all the arms are the same.
What ive decided to do is go with one extra rubber in the leading arm stop ,and that will give me full travel with slight compresion on that one and not put one in the rear BIG THANKS TO BOB AND JOHN FOR MAKING ME GO BACK AND CHECK AGAIN .Now to gill and mark
p.s good pics john will look in more detail after i grovel to mark
Re: PANZER IV BUILD no 012
Posted: Sun Dec 04, 2011 7:23 am
by Robert E Morey
Hi Nick,
I totally see your logic now. You definately don't want screw heads contacting the swing arms. I also agree that ideally you don't want the swing arm bottoming out on aluminum without hitting the rubber stop. That would defeat the purpose of the rubber stop. Adding a small shim (or rubber washer) just so the rubber bumper contacts the swing arm at max travel is justified in IMHO.
Keep up the good work, you are keeping us inspired. Thanks for the great photos.
Best regards,
Bob
Re: PANZER IV BUILD no 012
Posted: Sun Dec 04, 2011 6:24 pm
by Nick Farrugia
Re: PANZER IV BUILD no 012
Posted: Sun Dec 04, 2011 6:31 pm
by John Fitzsimons
Looking good Nick. I can confirm that is necessary to file the taperlock key a bit to fit. Hubs look great. Great the idler cap is threaded. The tiger caps are bolted in place.