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Post by miket on Mar 19, 2017 10:39:45 GMT
I'd think you could attach it or you could choose not to and just follow the build guide's "you can leave the pipe open after the check valve (see below[in the guide]) on the tank to allow for evaporation without a vacuum forming". Leave the check valve in either way. It feels that the only impact is where the fumes emerge - in the unlikely event of expansion (sunshine) in the UK  |
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Post by mikeeyboy on Mar 19, 2017 11:57:08 GMT
Thanks Miket, the fuel filler is one of those jobs that i thought would be straight forward but it seems to be tricky and expensive for fittings to get it to the top centre of the boot!
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Post by miket on Mar 19, 2017 13:46:59 GMT
Yeah if you don't want the Guide's side approach (partial tank filling, limiting rear light fixing options) or the filler above the tank orifice (easiest to implement) then it all becomes more complex. Because I'm trying to enforce budget-build I'm using the donor filler (cut down) but then I need ultra-flexible fill hose from CBS (expensive).
The only CBS hose I could find at the time in the right size for the vent pipe was some retro-style fabric coated hose! Given that a full tank will hold some fuel in the bottom of the filler & vent hoses I felt they should both be appropriate for use with fuel not just fumes. If you buy fuel hose of any sort try and get hold of its data sheet from the supplier just in case need to evidence suitability for low pressure unleaded fuel when you're doing the IVA. Probably over-cautious but until you've been thru an IVA it's hard to know.
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Post by mikeeyboy on May 20, 2017 14:21:26 GMT
It has been a while since my last update and I have not got as much done as I would like. Thankfully I have pretty much ticked the fuel tank off the list. I did not want to go with the standard side exit and instead wanted an aero filler on top of the boot. After trying a couple of different flexi pipes I was struggling to get them round the bend of hte MK2 tank to reach the centre. I ditched the flexi pipe and bought some mild steel pipe in 38mm. I made a 3 piece corner joint to come straight out of the tank and get the pipe round the edge as tightly as possible to avoid boot lid issues. I then used a 38mm to 50mm mild steel exhaust pipe joint to allow me to connect the aero filler to the pipe using some rubber sleeve. Ironically this has worked out cheaper than any other option I looked at and also I think looks pretty neat. Total spend was about £16 + the aero cap - about £50 off eBay. The rubber pieces I have used were cut out of the donor bits that were left over so definitely fuel rated.    The fuel filter is just a cheapish one from carbuilder solutions, I decided to fit a new one as they come with a mounting bracket and also the right angled bend means that the out side connects directly onto the fuel line at the right angle. You can also reuse the MX5 connectors, Just scour the old pipe with a stanley knife and then peel it away from the connector. I used a fuel pipe jubilee clip to secure them onto the new hose. |
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Post by mikeeyboy on May 20, 2017 14:36:02 GMT
Forgot to add - what are people using to blank the original breather off just above the filler hole? I was planning on just letting it vent from the old charcoal canister connector.
Cheers
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Post by stevednorris on May 20, 2017 14:42:57 GMT
Hi, if you block off the vent above the filler pipe, you will probably have to put up with a very slow filling tank as it's there to let air out of the tank while filling. Best bet is to weld a small pipe just below the filler cap and join the two together.
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Post by Fin on May 20, 2017 15:18:19 GMT
How's the boot fitting over that set up?
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Post by mikeeyboy on May 20, 2017 16:53:36 GMT
Thanks for that tip Steve. So you are saying that if I welded a small circular tab onto the wide end of the filler pipe at the top that I could join the tank breather to it using a length of rubber fuel hose?
Fin, I have cut an access panel into the boot cover, thought it would make removing it easier as it means I can access the filler easily to disconnect it etc.
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Post by Fin on May 20, 2017 18:56:59 GMT
Thanks for that tip Steve. So you are saying that if I welded a small circular tab onto the wide end of the filler pipe at the top that I could join the tank breather to it using a length of rubber fuel hose? Fin, I have cut an access panel into the boot cover, thought it would make removing it easier as it means I can access the filler easily to disconnect it etc. Bold move  |
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Post by stevednorris on May 21, 2017 10:07:32 GMT
If you check page 3 of Stewart's (MEV) build blog at the top of the Replicar section he's got a really good photo of what you want to achieve.
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Post by stevednorris on May 21, 2017 10:08:57 GMT
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Post by mikeeyboy on May 21, 2017 11:45:51 GMT
That's a good spot, I'd not thought to look at the replicar guide. Will add this to the to do list
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Post by calibuild on May 21, 2017 13:14:15 GMT
Looking good. For the fuel filler, if you go with a recessed filler, meaning the fuel cap is below the body panel, you may want to try to cut your hole as far back as reasonably possible. You may also try flexible filler tube, which will give you some bend versus a pre-formed 90 degree elbow. If the cap is above the panel, those extra 2 inches or so may help alleviate some of the stress on the parts. Good luck!
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Post by mikeeyboy on Jun 4, 2017 11:30:28 GMT
So decided to try and start the car yesterday and couldn't get a spark, it wasn't even trying.
Much head scratching and checking of earth's didn't fix it. I randomly noticed a red part on the key which I assumed was an immobiliser. I had not noticed anything that looked to be factory fitted previously.
Checking through my removed parts I found a bracket with 2 control boxes, one said door locks and I googled the part number on the other........turns out it was an immobiliser!
Found the connector on the loom for it, hooked it up and the car started first time!
So lesson learned is to always keep parts until you are 100% sure it is not needed!
Randomly I thought my donor had an aftermarket immobiliser but it turns out that part is actually a tracker which I am going to remove.
Huge relief that is starts
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Post by mikeeyboy on Jun 10, 2017 15:00:17 GMT
I have come to properly fit the exhaust and the MK2 centre silencer totally doesn't fit. I can make a new section up but have a question related to the silencer.
I am using the MEV backbox and was wondering whether I would pass IVA with just that or do people think it will be too loud?
If not I will buy a round silencer for the centre section, any recommendations on diameter? I am guessing the larger diameters have better silencing properties.
thanks
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