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Search: Posts Made By: Thor
Forum: Other Cars 06-10-22, 04:12 PM
Replies: 11
Views: 37,729
Posted By Thor
Kevin that LOOKS like the one for the LH bank. I...

Kevin that LOOKS like the one for the LH bank. I think it goes at the front of the cylinder head, from the inside of the the 'V', high up just under the gasket face for the cam cover. I hope the...
Forum: 8 & 10 cyl Bristol cars 20-01-22, 01:34 PM
Replies: 13
Views: 2,742
Posted By Thor
In truth I think I prefer it with the strips, but...

In truth I think I prefer it with the strips, but I just had to say :

'Don't do another one or you'll have a pair of naked Bristols on your hands !'

It's an old joke, but should never be missed !
Forum: 8 & 10 cyl Bristol cars 21-12-21, 01:15 PM
Replies: 10
Views: 3,064
Posted By Thor
I am not sure of the exact reason for the 411...

I am not sure of the exact reason for the 411 pipes having down-pointing exhaust exit ports but from my experience :

1) To stop soot spots on the garage wall, possible but petrol engines don't...
Forum: 6 cyl Bristol cars 22-11-21, 09:01 AM
Replies: 4
Views: 2,730
Posted By Thor
We have discussed this here before, but the...

We have discussed this here before, but the reason for different jetting was that the central two cylinders fire on alternate complete revolutions, whereas the outer two pairs are not evenly spread...
Forum: 8 & 10 cyl Bristol cars 17-08-21, 06:20 AM
Replies: 4
Views: 2,478
Posted By Thor
Under-bonnet insulation is more often to reduce...

Under-bonnet insulation is more often to reduce noise getting back to the cabin via the windscreen, but it is probably not all that significant on a 410. The foam is often protected from heat by a...
Forum: 8 & 10 cyl Bristol cars 19-04-21, 02:30 PM
Replies: 2
Views: 1,866
Posted By Thor
I know how difficult it can be to make something...

I know how difficult it can be to make something like this happen, but nevertheless, £261 for a pair of badges seems quite hard to take. I'll have a look at my old ones this evening if I can...
Forum: 6 cyl Bristol cars 16-03-21, 05:18 PM
Replies: 3
Views: 2,246
Posted By Thor
That sounds exactly as though the pressure relief...

That sounds exactly as though the pressure relief valve is stuck closed. I am sorry that I know nothing about Bristol 6-cylinder engines, but relief valves are often cylindrical plungers in a...
Forum: 8 & 10 cyl Bristol cars 08-12-20, 01:17 PM
Replies: 24
Views: 12,948
Posted By Thor
I am keen to know what this means. Surely it is...

I am keen to know what this means. Surely it is related to the previously announced SLJ project ?

Whilst in all honesty I doubt I would ever own one, the idea of a 6.2 V8 Fighter is quite appealing....
Forum: 6 cyl Bristol cars 31-10-20, 12:16 PM
Replies: 13
Views: 3,503
Posted By Thor
That looks like a really good example of a 403. I...

That looks like a really good example of a 403. I have never owned a 6-cylinder Bristol, but I do appreciate their qualities (as an automotive engineer). I hope and expect that as you get to know...
Forum: 8 & 10 cyl Bristol cars 30-07-20, 02:32 PM
Replies: 5
Views: 3,632
Posted By Thor
Just to confirm, the 407s to 410s all had the...

Just to confirm, the 407s to 410s all had the early engine. When launched it was called the 'A' series engine, but when the later 318 was introduced that was also called 'A', so somewhat confusing....
Forum: 8 & 10 cyl Bristol cars 13-05-20, 01:28 PM
Replies: 10
Views: 2,539
Posted By Thor
I think the set up designed by Bristol was a lot...

I think the set up designed by Bristol was a lot better than many other systems on cars on the market at the time. Most production cars still had engine driven fans in the 1960s and 70s. I think in...
Forum: 8 & 10 cyl Bristol cars 03-05-20, 06:29 AM
Replies: 15
Views: 5,139
Posted By Thor
The really clever, but very unusual thing about...

The really clever, but very unusual thing about the Brigand engine is the priority valve under the carburettor. I am not aware of the use of a priority valve in any other 'production' car, and this...
Forum: 8 & 10 cyl Bristol cars 03-05-20, 06:13 AM
Replies: 10
Views: 2,539
Posted By Thor
Looking at the fans on my V8 Bristol I have been...

Looking at the fans on my V8 Bristol I have been struck by how well designed they are. Maybe something to do with a legacy of aerodynamic knowledge in the company, but the twin electric fans are...
Forum: 6 cyl Bristol cars 12-04-20, 10:21 AM
Replies: 11
Views: 2,795
Posted By Thor
I have a customer who has consulted a Midlands...

I have a customer who has consulted a Midlands business called 'Slinden' who claim to do reliable iron welding. www.castironweldingrepairs.co.uk - I have no connection. They might be worth a try ?
Forum: Other topics of interest 05-02-20, 03:46 PM
Replies: 6
Views: 40,207
Posted By Thor
I understand (sort of !) what Clive is saying,...

I understand (sort of !) what Clive is saying, but the case for not just having ever increasing amounts of CO2 in the atmosphere is being accepted by most people. Even if the temperature is not a...
Forum: Other topics of interest 04-02-20, 01:33 PM
Replies: 6
Views: 40,207
Posted By Thor
Worst case for classics is probably a limited...

Worst case for classics is probably a limited supply of suitable fuels with high ethanol and bio-Diesel content or similar, leading to high running costs and so only use for shows and historic...
Forum: 8 & 10 cyl Bristol cars 13-12-19, 01:44 PM
Replies: 8
Views: 2,926
Posted By Thor
Well in that case are they for a similar purpose...

Well in that case are they for a similar purpose but acting as sort of non-return valves in the cabin ventilation outlets which eject air through the body-side vents towards the rear of the 411...
Forum: 8 & 10 cyl Bristol cars 13-12-19, 01:36 PM
Replies: 8
Views: 2,926
Posted By Thor
Yes, such things do exist on some cars, and...

Yes, such things do exist on some cars, and Bristol being brilliant aerodynamic experts (!) might well have added such a brilliant feature !!!
Forum: 8 & 10 cyl Bristol cars 12-12-19, 05:16 PM
Replies: 8
Views: 2,926
Posted By Thor
I am a bit annoyed about this because I feel sure...

I am a bit annoyed about this because I feel sure I have seen these on a partially dismantled Bristol before. It's a guess, but are they flaps which allow air to pass through the fan cowling when the...
Forum: 8 & 10 cyl Bristol cars 09-06-19, 06:13 AM
Replies: 17
Views: 2,949
Posted By Thor
That Milodon unit looks really fine.

That Milodon unit looks really fine.
Forum: 8 & 10 cyl Bristol cars 06-06-19, 06:43 AM
Replies: 17
Views: 2,949
Posted By Thor
Kevin, the part in your picture also looks...

Kevin, the part in your picture also looks broken. A part like that could be welded and re-machined, but I suspect the welded version would be weaker than the original.

I offer a service of taking...
Forum: 8 & 10 cyl Bristol cars 20-12-18, 02:10 PM
Replies: 4
Views: 3,462
Posted By Thor
I don't think the ZF steering box used on...

I don't think the ZF steering box used on Bristols is a rare type. In one of the few conversations I had with Tony Crook myself, he told me he was amused by how many ZF engineers came over to help...
Forum: 8 & 10 cyl Bristol cars 09-04-18, 06:30 AM
Replies: 7
Views: 3,744
Posted By Thor
Mancini Racing, in USA, are a helpful bunch.

Mancini Racing, in USA, are a helpful bunch.
Forum: Other Cars 20-09-17, 02:40 PM
Replies: 3
Views: 14,232
Posted By Thor
I have been working with Rover V8s for more than...

I have been working with Rover V8s for more than 30 years and I have never seen any concrete evidence for a link to BMW but that is not to say there is none. BMW have always been rather good at...
Forum: 8 & 10 cyl Bristol cars 15-02-17, 03:52 PM
Replies: 22
Views: 33,470
Posted By Thor
Well done Anne, this is really useful information...

Well done Anne, this is really useful information for the longer term for all 407 to 410 owners. The poly 318 is worth the trouble it is a great engine !
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