Sprint 6C build up - Page 26 - Alfa Romeo Forum
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(Post Link) post #626 of 1863 Old 01-04-09 Thread Starter
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Re: Sprint 6C build up

Hi 302
The plate is for fun - the number was/is unused but the DVLA said they would auction it off - then it will be too expensive for me
Still I've done a bit more. The roof at the back hinge was rusty!! So I've cut it out and welded a bent up piece in place -Yes it was the other end of the Sprint bonnet/Rear bulkhead!
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Re: Sprint 6C build up

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Hi 302
The plate is for fun - the number was/is unused but the DVLA said they would auction it off - then it will be too expensive for me
Still I've done a bit more. The roof at the back hinge was rusty!! So I've cut it out and welded a bent up piece in place -Yes it was the other end of the Sprint bonnet/Rear bulkhead!
Thats the DVLA for you, that roof was rusty, was there ever any good metal on the car still looks much better now.
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Re: Sprint 6C build up

As for the small boot and heat , i guess you can use some kind of heat insulation to prevent that so that it can be usable...
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(Post Link) post #629 of 1863 Old 02-04-09 Thread Starter
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Re: Sprint 6C build up

[Thats the DVLA for you, that roof was rusty, was there ever any good metal on the car still looks much better now.[/QUOTE]
I was really surprised to find that rusty area when I bought the car!(presumable the rear washer/wipe pipe leaking!!) However when I was welding the plate on I discovered that welding to fibreglass doesn't work -It was even worse as the rear corner had been "repaired" so I had to add another small plate to get to sound metal "DOH!"
Yes Greek
- I will put some insulation on the new panel - it will also reduces sound transmission.
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Re: Sprint 6C build up

Have you ever considered sand-blasting the car ?

Mine has a hole up there on the roof as well...
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(Post Link) post #631 of 1863 Old 02-04-09 Thread Starter
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Re: Sprint 6C build up

I'm afraid that if I sand blasted the car I would get too depressed!
Anyway I've done a bit more welding and filing and "stuff". Then I decided to quickly spray primer the front wings - then I sprayed the bonnet with primer filler - Well it made a change
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Re: Sprint 6C build up

just leave those panels on and forget about the rust out of sight, out of mind just talk nicely to the mot guy
 
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Re: Sprint 6C build up

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just leave those panels on and forget about the rust out of sight, out of mind just talk nicely to the mot guy
out of site out of mind is good for marketing.
However, not so good when you find out that you have just been overtaken by the rear end of your car !

Looking good sixnut I think i like the primer more than the silver
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(Post Link) post #634 of 1863 Old 03-04-09 Thread Starter
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Re: Sprint 6C build up

A frustrating day chasing around after a set of worn 3.0 V6 front brake pads! I thought I had found some via my AO wanted thread but they were the smaller size (for a 2.0 164?? ) so I'm still looking. I had ordered a new set but they are also the smaller size.....
I then spent two hours making a simple fixing/tensioning bracket for the alternator. I have repositioned the alternator and it is still - just - possible to get it out under the front cross member. The shorter polyvee belt was a spare that I had in the garage for our Mazda 626
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Re: Sprint 6C build up

Looks nice and tidy. I'm afraid you're going to have to get used to poor engine accessibility... all mid-engine cars suffer from that!

At least you don't have the same set up as a Boxster - engine and transmission all hidden under the boot carpet and only two fluid fillers and a dipstick available from above

Good luck with the brake pad search!

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Re: Sprint 6C build up

nice and neat job with the alternator tensioner phil, hope it is working ok now it's burried not much spare room anywhere
 
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Re: Sprint 6C build up

wont it hit the underneath the crossmember when the engine vibrates or shakes ? Its not so clear in the picture how much space you have as clearance but it looks risky

Sixnut , if you dont mind me saying, I can never know what you will be doing next
I cannot imagine how you went from welding to dashboard installation and then to priming the front of the car, now to the alternator and brakes ? and then back to welding and priming the rear of the car, and getting those front fenders you just primed out again so you can fix the rust ? and then back to the dashboard maybe


Mind you this is a fantastic way of not getting bored of a project
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(Post Link) post #638 of 1863 Old 04-04-09 Thread Starter
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Re: Sprint 6C build up

Hi 16v
You are right to be concerned re clearances - that's why the bracket too so long to make. I had to keep taking the alternator out to grind more clearance....... Then with the engine vibration it will probable hit in some different places
I do seem to be bitting and bobbing at the moment - I have also been planning the pipe runs for coolant and fuel.
The next big job though is to tie in the back of the sill to the front of the 164 chassis leg so that the forces are distributed into the floorpan/sill evenly and widely - more steel work and welding
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Re: Sprint 6C build up

what are you gonna do with the radiator though ? where are you going to pass the coolant hoses from ?
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Re: Sprint 6C build up

All over the place, but its moving forward all the time. Keeps you on your toes
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(Post Link) post #641 of 1863 Old 04-04-09 Thread Starter
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Re: Sprint 6C build up

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what are you gonna do with the radiator though ? where are you going to pass the coolant hoses from ?
The 164 radiator is already mounted at the front and the coolant pipes will hopefully run up the central Sprint tunnel/hump - where the exhaust used to be. The trick will be to get them round the engine to the centre - lots of rubber tube 90 degree bends and pieces of straight aluminium tube should do the trick
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Re: Sprint 6C build up

will the 164 water pump be up to the job of circulating all that water? maybe an electric pump to supplement it? guess its one of those "see what happens" things
 
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Re: Sprint 6C build up

yeah but if you do that , the car will hold up to 20 litres ???

I know the standard sprint 1.5 holds about 7 litres of coolant...

How about putting a thin radiator in the back of the car, with an electric fan ( used for a/c units ) so the water pump will be able to cool the engine.
Then do the piping from the front radiator to the rear radiator, just to transfer cool water from one rad to the other, using an electric pump.

This way you will have enough water that the stock water pump can circulate , and you can cool it off both with the fan and from the front radiator, which will also have a fan

....just a thought....
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Re: Sprint 6C build up

Not a bad idea that.. Effectively cooling it by removing some hot water and replacing with cold. Complicated set-up but it could all be controlled manually by having switches in the cab..
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(Post Link) post #645 of 1863 Old 04-04-09 Thread Starter
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Re: Sprint 6C build up

I calculated that the extra 4 m pipework of 4 cm ID will contain an extra 5 litres of water.(Pie x r squared x length 3.1 x 2 x 2 x 400 = 4960 cm cubed = 5 litres) The pump may not circulate quite as much water per second due to the extra mass and internal friction of the water - but the inceased surface area of the pipework will act to increase the heat loss overall - so I think it will be ok.
The other question is how hot the engine bay will get ie how effective will the spoiler and louvres be? - Spacenut - thoughts?
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Re: Sprint 6C build up

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I calculated that the extra 4 m pipework of 4 cm ID will contain an extra 5 litres of water.(Pie x r squared x length 3.1 x 2 x 2 x 400 = 4960 cm cubed = 5 litres) The pump may not circulate quite as much water per second due to the extra mass and internal friction of the water - but the inceased surface area of the pipework will act to increase the heat loss overall - so I think it will be ok.
The other question is how hot the engine bay will get ie how effective will the spoiler and louvres be? - Spacenut - thoughts?
Are you going to fit a forward-facing scoop underneath the car that catches cold air and draws it into the engine bay? Without something like this then the heat may just stay inside the engine bay, as nothing is forcing it out through the lourves.
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Re: Sprint 6C build up

No need to do that. Heat goes up anyway.
He can just leave air vents where the rear left and right windows used to be.
That way the head will be pushed out from the top sides.

Cant do anything about it while in traffic though....at least it will have ventilation
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Re: Sprint 6C build up

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No need to do that. Heat goes up anyway.
Yes, you're right there, the air inside the engine bay will radiate its heat into the air outside the car through the gaps in the lourves, that is convection and nothing will stop that happening. But will it be enough? If cold air is flowing in from below due to the ram effect of the car travelling forward then it will actively push the air that is already in the engine bay out through the lourves. With a set-up like this the engine bay might not have a chance to get hot, which gives you some time traffic before the heat starts to build up to uncomfortable levels.

There'd have to be some sort of protection though, to prevent spray getting into the engine bay. Bit of hessian over the gap maybe?

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(Post Link) post #649 of 1863 Old 04-04-09 Thread Starter
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Re: Sprint 6C build up

You are both correct. When stationary the hot air will rise and go out through the louvres (-Convection). When travelling there should be a low pressure area behind the louvres and rear of the car so the air under the car will go up past the engine and out of the louvres - forced cooling - and I won't try a scoop under the car. But it is Not a race or rally car so I think it will run cool enough - if it doesn't, I'll have to stop!
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Re: Sprint 6C build up

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You are both correct. When stationary the hot air will rise and go out through the louvres (-Convection). When travelling there should be a low pressure area behind the louvres and rear of the car so the air under the car will go up past the engine and out of the louvres - forced cooling - and I won't try a scoop under the car. But it is Not a race or rally car so I think it will run cool enough - if it doesn't, I'll have to stop!
:hmm: You think the air moving over the roof of the car and the lourves will suck the air out from the engine bay, removing the need for a scoop provided there is a way in for air from below.. You might be right actually, but I suppose there is no way of telling until it is built and you have it on the road. And I can't wait for that.

When are you getting the Martini paintjob then?
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