Classic cars forum & vehicle restoration.
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Ray White

Joined: 02 Dec 2014 Posts: 7140 Location: Derby
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Posted: Sat Oct 05, 2024 11:16 pm Post subject: |
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I am anxious about fitting the new hood to my MG TC project. Firstly I have to hope that I secure the frame in the right place; secondly, I have never fitted a hood before and seeing as the new one has been hand made by a specialist it cost a small fortune.! I can't afford to stuff it up but I am reluctant to hand over hundreds more to a trimmer who may or may no do the job well.
Part of the problem is that I have a new body tub and therefore no points of reference to go by. There are scant few diagrams for fitting a hood to a TC. Most are for the TA; the body of which is 4" narrower.
On the plus side, the car is quite small and a friend has offered to help me.  |
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Bitumen Boy
Joined: 26 Jan 2012 Posts: 1763 Location: Above the snow line in old Monmouthshire
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Posted: Sun Oct 06, 2024 9:46 am Post subject: |
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| Ray White wrote: | | One thing about modern trim to watch out for are the plastic clips. Supposing you can find them (and they are often hidden) they may be marque specific and require special tools to prevent them from snapping. In fact some fasteners are single use and will need to be renewed. |
These plastic clips (which invariably become brittle with age) are one of the things that I loathe about even vaguely modern cars. |
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Ray White

Joined: 02 Dec 2014 Posts: 7140 Location: Derby
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Posted: Sun Oct 06, 2024 12:32 pm Post subject: |
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The use of plastic in interiors is one thing but it has been infiltrating engines for a while now. I may have mentioned this before (memory fails me) but I know a young mechanic who works with his Dad out of a Garage near me. He bought a modern Audi sports car with a powerful V8 engine. There was a problem with the variable valve timing so he stripped the engine. What he found was a broken timing chain tensioner. Not worn out but broken ...because it was made of plastic.
The engineers at Audi are probably some of the best in the world but although I have no evidence for it, their efforts would seem to have been undermined by penny pinching .
Blinkered bean counters probably.  |
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Bitumen Boy
Joined: 26 Jan 2012 Posts: 1763 Location: Above the snow line in old Monmouthshire
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Posted: Sun Oct 06, 2024 9:19 pm Post subject: |
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| Ray White wrote: | The use of plastic in interiors is one thing but it has been infiltrating engines for a while now. I may have mentioned this before (memory fails me) but I know a young mechanic who works with his Dad out of a Garage near me. He bought a modern Audi sports car with a powerful V8 engine. There was a problem with the variable valve timing so he stripped the engine. What he found was a broken timing chain tensioner. Not worn out but broken ...because it was made of plastic.
The engineers at Audi are probably some of the best in the world but although I have no evidence for it, their efforts would seem to have been undermined by penny pinching .
Blinkered bean counters probably.  |
All sorts of bits that ought to be metal are now made of plastic sadly... A few years ago my old Corsa ended up having its second clutch in two years because the plastic slave cylinder assembly failed - itś an inaccessible annular type, gearbox out job and of course it ends up contaminating the linings with fluid too
I suspect that much of this is because plastic has a definite lifespan before it becomes brittle and fails, which is great for getting old cars off the road and making people replace them. NOS parts, if available, will also be getting brittle too, and if fitted successfully, will soon fail the same way... Just another big fat scam. |
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bjacko
Joined: 28 Oct 2013 Posts: 527 Location: Melbourne Australia
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Posted: Mon Oct 07, 2024 6:54 am Post subject: Plastic Parts |
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I can confirm plastic parts have a calendar life rather than a mileage life. my Rover Starter Motor (Lucas) ceased working due to a non available plastic interior part having broken. The car has only done 34,000 kms. _________________ 1938 Morris 8 Ser II Coupe Utility (Pickup)
1985 Rover SD1 VDP |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4242 Location: South Cheshire
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Posted: Mon Oct 07, 2024 8:07 am Post subject: |
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I rebuilt the front end of a accident damaged 2008 Renault Clio a few years back, I was amazed at how much of the bodywork was held in with plastic clips, the downside being a few had broken in the accident and a few more broke during dismantling.
The plus side is that your not fighting with rusted steel fasteners, and reassembly is very quick, you do need a supply of new clips thankfully they are cheap.
Regarding the general debate regarding "plastics" its a generic term that unfortunately generates images of the junk that used to come out of Hong Kong in the 70's ! these days some of the poly composite plastics have many better qualities than steel, gun barrels have been made from them, they are used all over the place in the aviation industry for weight and durability advantages.
What I would be wary of, is cheaper non OEM plastic parts, they may not be using the original manufacturers spec, and to the naked eye, difficult to differentiate from the original material. |
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Ray White

Joined: 02 Dec 2014 Posts: 7140 Location: Derby
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Posted: Mon Oct 07, 2024 9:36 am Post subject: |
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| My Range Rover P38 is strewn with cheap and nasty plastic stuff which surprised me. I thought they were supposed to be a quality car but compared to my Wife's Lexus it is really quite poor. |
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