Are you madabout kit cars      
 "We've Got Kit Cars Covered" Information about Madabout-Kitcars.com Contact Madabout-Kitcars.com         Home of UK kit cars - madabout-kitcars.com Various kit car write ups All the latest kit car news Kit car related and general discussion

Search
Manufacturers
Kit Cars
Kit Car Data sheets
Picture Gallery
SVA Knowledgebase
Clubs & Communities
Build cost estimator
Kit cars for sale
Knowledge Base 
KitcarUSA.com
Classic-Kitcars.com
 

Go Back   Madabout Kitcars Forum > Mad Build Area > Vintage and Classic Roadster Kit Car Builds

Vintage and Classic Roadster Kit Car Builds For Vintage and Classic era kit cars. Post your build reports, problems and progress here

Reply
 
Thread Tools Display Modes
  #161  
Old 7th July 2019, 21:46
Mitchelkitman Mitchelkitman is offline
Senior Member
 
Join Date: Oct 2013
Location: norfolk
Posts: 468
Mitchelkitman is on a distinguished road
Default

I'd like to ask about the body fabrication......... 1)Did you use Casting Plaster (I believe this is plaster of Paris)?
2)I've done some googling, but can't find an answer... Is the CP liable to crack if it's too thin (or indeed too thick)?
I'm thinking that using Celotex foam covered with a thin layer of CP could be a good way to make a buck to take moulds off (I understand it would have to dry about 3 weeks and then be coated with shellac or poly varnish to seal, and then waxed to take moulds off)
3) Did it take many, many hours to achieve the good finish you've got using GRP over the casting plaster - did you have to fill/flat much? - I can see the appeal of the method for a one-off because it avoids the cost of moulds
Reply With Quote
  #162  
Old 7th July 2019, 22:27
molleur molleur is offline
Senior Member
 
Join Date: Jun 2015
Posts: 1,160
molleur is on a distinguished road
Default

Just a small hijack to the thread.

I have used Hydrocal plaster (not CP) over mesh, or even drywall "mud" and screed it to about 1/8 inch to 1/4 inch thick. Sand as smooth as you can and apply a single layer of GRP cloth and finish using fillers, etc. Way away (I also use sprayed-on PVA for "belt and suspenders" mold release. Lots of time spent.
Reply With Quote
  #163  
Old 8th July 2019, 06:35
Colin HD Colin HD is offline
Senior Member
 
Join Date: Mar 2017
Posts: 127
Colin HD is on a distinguished road
Default

Hi Guys,
I used normal multifinish wall plaster, left over from repairing a kitchen wall.
Changed to a bag of 'bonding' later, as it bulks up better.
The plaster is mixed with vermiculite granules, at a ratio of 30/70 plaster/vermiculite.
The vermiculite is only there to make it lighter, otherwise just plaster would weigh in at about 2 ton!!!

Cold weather, mix with hot water to speed-up the setting.

Place on with a normal trowel, finish off with a surform file and run over it with some 60 grit.
There really is no point it making it any smoother than that. Don't forget, you are finishing the outside of the f'glass NOT the plaster!

Slap on some latex paint & PVA, I mixed about 20% PVA into the paint.

I didn't wait for the plaster to 'fully' dry, as long as its 'crusty' on the outside, go for it!

Cover in f'glass, I used 3 or 4 layers, more in some places.
I loaded up with layers, giving me plenty of 'meat' to sand back on.
Reply With Quote
  #164  
Old 8th July 2019, 06:40
Colin HD Colin HD is offline
Senior Member
 
Join Date: Mar 2017
Posts: 127
Colin HD is on a distinguished road
Default

Casting Plaster - 20 bag
Bonding Plaster - 6 bag

I used the bonding/vermiculite at abound 1" thick over sheets of polystyrene, with no issues.

As long as the resin doesn't touch the polystyrene, you will be ok.
Reply With Quote
  #165  
Old 8th July 2019, 06:44
Colin HD Colin HD is offline
Senior Member
 
Join Date: Mar 2017
Posts: 127
Colin HD is on a distinguished road
Default

All I wanted was a one-off body, never done the whole multiple moulds thing.

I guess you would need more care to prevent movement/flex in the original buck, to ensure consistency.
Reply With Quote
  #166  
Old 8th July 2019, 09:09
Mitchelkitman Mitchelkitman is offline
Senior Member
 
Join Date: Oct 2013
Location: norfolk
Posts: 468
Mitchelkitman is on a distinguished road
Default

Thanks for the insight. I'm reassured that the bonding plaster didn't crack - although I guess it doesn't when put onto walls
I admire yous work and the car looks a hoot - I look forward to seeing it if you get it to Stoneleigh next year.
Reply With Quote
  #167  
Old 30th July 2019, 06:30
Colin HD Colin HD is offline
Senior Member
 
Join Date: Mar 2017
Posts: 127
Colin HD is on a distinguished road
Default

Very happy with its first real outing, won Best Custom at BugJam.








Attached Images
File Type: jpg DSCF8197.jpg (95.2 KB, 72 views)
File Type: jpg DSCF8211.jpg (84.4 KB, 70 views)
File Type: jpg 67224818_10214747638191966_588206259497336832_o.jpg (97.2 KB, 70 views)
File Type: jpg DSCF8214.jpg (90.8 KB, 73 views)
File Type: jpg DSCF8222.jpg (90.3 KB, 157 views)
Reply With Quote
  #168  
Old 30th July 2019, 06:43
Jaguartvr's Avatar
Jaguartvr Jaguartvr is offline
Senior Member
 
Join Date: Jan 2014
Location: Egham, Surrey
Posts: 1,622
Jaguartvr is on a distinguished road
Default

Mad but brilliant.
Wish I could see the MOT testers face when it pulls up.

Great work.
Reply With Quote
  #169  
Old 30th July 2019, 07:03
Dpaz Dpaz is offline
Senior Member
 
Join Date: Apr 2011
Posts: 200
Dpaz is on a distinguished road
Default

Why wouldn't you win first prize? It is fantastic! I would love to see the Red Air hostess types try to get in, and then out again, snarf snarf!
Reply With Quote
  #170  
Old 30th July 2019, 08:36
froggyman's Avatar
froggyman froggyman is offline
Senior Member
 
Join Date: Dec 2011
Location: Devon
Posts: 521
froggyman is on a distinguished road
Default

Totally 'bonkers' but in a good way!
I bet the MOT testers manual was well thumbed during that test.
Great Job enjoy.
Reply With Quote
  #171  
Old 30th July 2019, 09:57
peterux's Avatar
peterux peterux is offline
Senior Member
Enthusiast
 
Join Date: Mar 2005
Posts: 2,816
peterux is on a distinguished road
Default

Congratulations, fantastic build, well done
Reply With Quote
  #172  
Old 30th July 2019, 10:12
Colin HD Colin HD is offline
Senior Member
 
Join Date: Mar 2017
Posts: 127
Colin HD is on a distinguished road
Default

Cheers Guys!!!
It is a little bonkers.

There's a Manual for the MOT!!??!!
Wish you had told me!

Actually passed quite easily:
Was tested without the bubble, so no wipers, demisters. plus I can drive with it up, so can see under - wipers not required.

Has removable front mudguards that take a couple of mins to bolt on.

Running what is often known as a 'daytime' MOT, so no lights.

Has 3-point seatbelts, that are unclipped & hidden behind the seat.

Rear indicators are 'slightly' hidden, so will eventually change those.

But it actually is MOT exempt, being 1971 VW chassis.

Last edited by Colin HD; 30th July 2019 at 13:20..
Reply With Quote
  #173  
Old 30th July 2019, 18:33
scimjim's Avatar
scimjim scimjim is offline
Senior Member
 
Join Date: Mar 2013
Location: Gloucester
Posts: 247
scimjim is on a distinguished road
Default

Love it - but there’s no way you can claim it’s VHI (and MOT exempt) with those changes to the body (one of the specific changes that the guidance mentions)
Reply With Quote
  #174  
Old 30th July 2019, 19:06
Colin HD Colin HD is offline
Senior Member
 
Join Date: Mar 2017
Posts: 127
Colin HD is on a distinguished road
Default

As with a lot of things, you would think so, but the Historic Vehicle - MOT exempt, make no mention or concern of the body (chassis cars only) the 'substantial changes' are linked to:
Chassis
Axles & running gear
Engine
None of which I have changed.
Attached Images
File Type: jpg Capture.JPG (71.7 KB, 57 views)
Reply With Quote
  #175  
Old 30th July 2019, 19:31
scimjim's Avatar
scimjim scimjim is offline
Senior Member
 
Join Date: Mar 2013
Location: Gloucester
Posts: 247
scimjim is on a distinguished road
Default

https://assets.publishing.service.go...e-guidance.pdf

In addition if a vehicle (including a motorcycle):
• has been issued with a registration number with a ‘Q’ prefix; or
• is a kit car assembled from components from different makes and model of
vehicle; or
• is a reconstructed classic vehicle as defined by DVLA guidance; or
• is a kit conversion, where a kit of new parts is added to an existing vehicle, or
old parts are added to a kit of a manufactured body, chassis or monocoque bodyshell changing the general appearance of the vehicle;
it will be considered to have been substantially changed and will not be exempt from MOT testing.
Reply With Quote
  #176  
Old 30th July 2019, 19:45
Colin HD Colin HD is offline
Senior Member
 
Join Date: Mar 2017
Posts: 127
Colin HD is on a distinguished road
Default

Quote:
Originally Posted by scimjim View Post
https://assets.publishing.service.go...e-guidance.pdf

In addition if a vehicle (including a motorcycle):
has been issued with a registration number with a Q prefix; NO its on original J reg

is a kit car assembled from components from different makes and model of
vehicle; NO its all VW same make & model

is a reconstructed classic vehicle as defined by DVLA guidance; NO not reconstructed.

is a kit conversion, where a kit of new parts is added to an existing vehicle, NO not a Kit Car as per DVLA guidance.

old parts are added to a kit of a manufactured body, chassis or monocoque bodyshell changing the general appearance of the vehicle; NO old parts have not been added.

it will be considered to have been substantially changed and will not be exempt from MOT testing.
..
Reply With Quote
  #177  
Old 30th July 2019, 19:48
scimjim's Avatar
scimjim scimjim is offline
Senior Member
 
Join Date: Mar 2013
Location: Gloucester
Posts: 247
scimjim is on a distinguished road
Default

Different bodies on separate chassis vehicles was specifically discussed during the consultation - they may not have written it very well but that’s exactly what it means.
Reply With Quote
  #178  
Old 31st July 2019, 07:55
Paul L's Avatar
Paul L Paul L is offline
Senior Member
 
Join Date: Feb 2012
Location: Wembley, London
Posts: 4,778
Paul L is on a distinguished road
Default

Colin - First of all, congratulations on your first award.

And secondly...

Quote:
Originally Posted by scimjim View Post
Different bodies on separate chassis vehicles was specifically discussed during the consultation - they may not have written it very well but thats exactly what it means.
Sorry ScimJim, but I also follow Colin's interpretation of the VHI rules.

There were a number of things discussed in the consultation, including increases in power/weight ratios, but these are now red herrings.

It is the final official wording that counts and that does not prevent a new body on an old chassis.

The fact the wording is vague should count in our favour.

E.g. "The general appearance" is still that of a car, as it hasn't been changed into a truck.

Cheers, Paul.

PS
More debate on VHI here:
http://www.madabout-kitcars.com/foru...light=historic
Reply With Quote
  #179  
Old 31st July 2019, 09:17
scimjim's Avatar
scimjim scimjim is offline
Senior Member
 
Join Date: Mar 2013
Location: Gloucester
Posts: 247
scimjim is on a distinguished road
Default

We’ll agree to disagree until a test case comes up then ��
Reply With Quote
  #180  
Old 31st July 2019, 17:44
Mister Towed's Avatar
Mister Towed Mister Towed is offline
Senior Member
 
Join Date: Jul 2011
Posts: 4,917
Mister Towed is on a distinguished road
Default

Hmm, as Paul (and others) have already been granted VHI status with cars that have been previously and properly declared as re-bodied, it does appear that the authorities' view is that they still qualify as historically interesting vehicles, which is nice.

Having said that, I'll still be presenting anything I build for an annual inspection to my MOT chappy just for the peace of mind of it having an independent safety inspection, and I suspect a lot of builders on here will do the same.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +0. The time now is 10:12.

copyright madabout-kitcars.com 2000-2019
terms and conditions | privacy policy