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Vitesse — Coolant Escaping When Hot Print
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Jason C
April 12, 2017, 7:46am Report to Moderator


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Thanks guys!

Will try and carry out a coolant pressure test. Shame the tools look expensive for this. I'll try and connect compressor with a tyre inflator that I have (has a pressure gauge) and be careful not to push over 15psi.

@Nang — yes has rubber seals on radiator cap.

Will keep you updated.
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Jason C
April 12, 2017, 7:59am Report to Moderator


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Quoted from glang
Jason, I noticed from your pics that you havent got air cleaner hoses fitted on your car. They help to draw cooler air in especially during slow driving. I used plastic fish pond hose and a hair drier to get them to fit then made up a small bracket to hold them in their original position on the side of the radiator...


Hi Glang,

Interesting! Have noticed these air cleaner hoses in some pictures on-line, were they originally standard on the Vitesse? Noticed yours has a bracket on the radiator, my bracket looks to be missing... is this bracket just bolted to the radiator? The hoses help collect cooler air from outside, away from the hotter engine bay?  
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glang
April 12, 2017, 8:22am Report to Moderator

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yes came as standard but I believe they were made of a sort of paper material which rapidly fell apart so very few original ones remain. My bracket was missing as well so I bent a small thin piece of steel to shape, painted it and fixed it to the right hand valance top stud. I cant say there has been a drastic improvement but it must help to get cooler air especially on hot days.
With the pressure test it shouldnt be expensive as you already have a compressor. Remember that after the test, if there are no leaks, the system will still be pressurised until you undo the rad cap....
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Jason C
April 12, 2017, 8:48am Report to Moderator


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Quoted from glang
yes came as standard but I believe they were made of a sort of paper material which rapidly fell apart so very few original ones remain. My bracket was missing as well so I bent a small thin piece of steel to shape, painted it and fixed it to the right hand valance top stud. I cant say there has been a drastic improvement but it must help to get cooler air especially on hot days.
With the pressure test it shouldnt be expensive as you already have a compressor. Remember that after the test, if there are no leaks, the system will still be pressurised until you undo the rad cap....


Nice, wondered if it increased performance much. On manuals it seems to show this pipe on the GT6. Came across some "high tech" pipe; https://www.merlinmotorsport.co.uk/p/revotec-black-single-layer-neoprene-ducting-per-metre-rev-blk and looking around spotted heat jackets, claim to reduce under bonnet temp; https://www.merlinmotorsport.co.uk/p/thermo-tec-4-6-cylinder-exhaust-jacket-kit-ex-jacket Wonder if the jackets help much to reduce engine temp when idle. Ha, first things first: find the leak.

Good point regarding pressure, noticed on the professional tools they have a valve to slowly release pressure before removing... just slowly unwind radiator cap do the trick?

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glang
April 12, 2017, 11:10am Report to Moderator

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Yes its not dangerous as no steam will be produced because the rads cold.
That pipe does look good certainly better than the cheaper corrugated fish pond pipe Ive used However dont think I need the jackets as I control my under bonnet temperature with the monster rad fan Ive managed to squeeze in. You can see it in the photo and its so powerful that it not only cools the radiator but also blows air through the entire engine bay!
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Jason C
April 19, 2017, 5:06am Report to Moderator


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Hi there,

An update! Tried a DIY coolant system pressure test with the compressor and tyre inflator and couldn't find the source of the leak. Decided to take the Vitesse to the mechanic to see if they could uncover the problem. The mechanic tried a pressure test, everything held up well under pressure - also no luck. After running the car, he was able to determine the leak coming from the hole beneath the water pump housing. The mechanic (owned a 1600 Vitesse in a previous life) recommended reconditioning the water pump (unable to source a new part in NZ) from a local store specialising in "vintage" car part repairs of this nature. I'm thinking while we're at it to replace the thermostat and do a good flush of the system. Assuming it's a good course of action to recondition the water pump? Noticed Canley has a fancy lighter alloy engineered replacement.

Thank you GLang and Nick Jones and all for the help, spot on with the potential leak source!
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glang
April 19, 2017, 6:33am Report to Moderator

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Good news Jason and at least its a relatively easy fix (could have been a core plug!).
Ive never heard of spare parts for the water pumps being available and when we buy a new one over here they dont even ask for the old part in exchange. If you can find a spare seal then theres nothing to prevent a refurb but it will require the use of a hydraulic press....
Luckily new pumps arent too expensive at under 40 pounds but I suppose your problem would be cost of delivery Once done I recommend running the engine or at least rotating it by hand once a month to prevent it sticking again.
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Jason C
April 19, 2017, 7:57am Report to Moderator


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Thanks Glang! Hopefully the refurbishment works out well. To be honest I rolled the dice on it, at $170 NZD it didn't seem "cheap" but wasn't to sure of new part replacement cost. Off topic but how do you find the quality of replacement parts, obviously depends on item, for example I have found some new rubber items to deteriorate very quickly even away from sunlight with the car garaged. Had this feeling of, would a new water pump just be a junk part. I asked if it was just the gasket between the water pump and engine, but sounds to be inside the water pump itself, looking at an exploded diagram not too sure which parts they service...

Good point regarding usage, I'm finally looking to get everything ship shape and was advised by the mechanic to take the car for a run once at least once a month.
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glang
April 19, 2017, 12:58pm Report to Moderator

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Yes that price is quite high but hopefully it'll come with a lengthy guarantee. Theres a round rubber ring seal that must be replaced and also the two bearings.
Dont forget that when you have it all back together you could do another pressure test just to confirm that its tight and the pressure doesnt drop.  
Quality of parts is a problem although I havent suffered it much but then I dont think we can complain cos for our cars we have excellent availability at pretty low prices. I would be really sore if I was buying bits for something exotic at extortionate cost and they didnt last 5 minutes....
I found the replacement wheel arch to bulkhead rubber seal strips dont last long so bought some EPDM sheet to cut my own and it is much better.
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Jason C
April 19, 2017, 1:21pm Report to Moderator


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Quoted from glang


- Don't forget that when you have it all back together you could do another pressure test just to confirm that its tight and the pressure doesnt drop.  
- I found the replacement wheel arch to bulkhead rubber seal strips dont last long so bought some EPDM sheet to cut my own and it is much better.


Very good point, must mention to carry out another pressure test to confirm the workmanship. Ha, you read my mind the wheel arch/bulkhead rubbers have deteriorated very quickly. Opening the hood so often, they're my biggest frustration. Was thinking to ask community what a better solution is. I'm not a fan of the metal clips that hold the rubber in place (scratches the metal and come undone) and when closing my rubber catches the bolts on the bulkhead, requiring a finger to pull the rubber over. Seems like a key part to reduce dirt inside the engine bay, with poor design - previously I used a slip on rubber, with a longish flap, but obviously doesn't look great bending around the wheel arch curve.
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glang
April 19, 2017, 8:14pm Report to Moderator

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Well you'll know if theres any leaks in the cooling system because the level of liquid in the overflow bottle will keep on going down and if not refilled the interior heater stops working
With the wheel arch seals you can cut them out as big as you like so that they dont fold up as you close the bonnet. I use the original metal clips which stay in place ok but do take off the paint - maybe they could be glued or screwed in place.....
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Dogsbody47uk
April 20, 2017, 7:50pm Report to Moderator
1971 13/60 saloon and 1971 vitesse mk 2 saloon
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Wheel arch seals? I have not bothered fitting them for years. They are more trouble than they are worth.


First Triumph: 200cc Tiger Cub. Followed by in no particular order, 350 and 500 Royal Enfield Bullet, Herald 1200, Herald 13/60, Mini 1275 GT, Vitesse 2L convertible, Audi 80, Audi 80 Sport, Fiat 124 Sport Coupe, Triumph 2000, Mk 2 Estate, Fiat Tipo, Fiat Stilo, Fiat Uno, Peugeuot Turbo Diesel(yuk), Lancia HPE 2000ie (wow! a dream!) So far 3 Heralds and My fourth Vitesse in the garage. I may have forgotten some... It's my age.. Oh , Honda 400 four.. Terrifying! And the 2 Renault 5s. Oh, and the Ford Granada 3 litre estate..I think that's the lot.
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Jason C
April 21, 2017, 5:29am Report to Moderator


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Quoted from Dogsbody47uk
Wheel arch seals? I have not bothered fitting them for years. They are more trouble than they are worth.


Interesting! Do you find you get more dirt inside the engine bay without?

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Dogsbody47uk
April 21, 2017, 3:56pm Report to Moderator
1971 13/60 saloon and 1971 vitesse mk 2 saloon
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Quoted from Jason C


Interesting! Do you find you get more dirt inside the engine bay without?



Not really. Some dirt gets a little further up the front of the bulkhead but I don't find it a problem.


First Triumph: 200cc Tiger Cub. Followed by in no particular order, 350 and 500 Royal Enfield Bullet, Herald 1200, Herald 13/60, Mini 1275 GT, Vitesse 2L convertible, Audi 80, Audi 80 Sport, Fiat 124 Sport Coupe, Triumph 2000, Mk 2 Estate, Fiat Tipo, Fiat Stilo, Fiat Uno, Peugeuot Turbo Diesel(yuk), Lancia HPE 2000ie (wow! a dream!) So far 3 Heralds and My fourth Vitesse in the garage. I may have forgotten some... It's my age.. Oh , Honda 400 four.. Terrifying! And the 2 Renault 5s. Oh, and the Ford Granada 3 litre estate..I think that's the lot.
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daver clasper
April 21, 2017, 5:47pm Report to Moderator
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I wondered about how much those seals do. Bought some recently, but can't be arsed fitting them if they don't protect the lower bulkhead/front outrigger/body mounts.

Dave
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