Poor manifold casting

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Demon James
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Poor manifold casting

Post by Demon James »

I pressume this is not a performance enhancing breather hole in the under side of my new inlet manifold :shock: :evil: I noticed it today when wiping round the engine bay as there was some staining appearing on the flat area. If I put a torch underneath you can see light from the top with the carb off :shock: Definately dodgy casting as the hole is smooth on all all edges and appears to be a splodge rather than a crack. I now soley blame this for my runs of low 16's on Friday :lol: and not my wheel spinning agressive starts :lol: Looks like I'll be calling the supplier in the morning :roll:
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V8 Sam

Post by V8 Sam »

Poor quality control there! They mass produced or a one of job?

Took ages to work out what was going on in the first pic, then I realised it was a mirror!

:oops:
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Demon James
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Post by Demon James »

:lol: Yeah sorry I always do this on here, get the pictures the wrong way round every time. If I ever get round to putting pictures up of what I do to my car it would look like I'm taking a perfectly good car apart and replacing all the parts with broken bits :lol: :lol: Mind you with this Edelbrock RPM Airgap that's exactly whats happened :shock:
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Dave-R
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Post by Dave-R »

Does it go right through? You can see light or poke a wire through?
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Demon James
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Post by Demon James »

Yeah it goes right through :( I have a video with a torch underneath and you can see light inside with the carb off. I didn't notice it when I installed it cos the hole is difficult to see even from upside down. To honest I seem to remember un packing and fitting straight away, doh :oops:
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Dave-R
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Post by Dave-R »

That would have knocked your tuning all to cock.
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Demon James
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Post by Demon James »

I'm guessing that could be why the idle screws have little effect?
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Dave-R
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Post by Dave-R »

That is one of two things that would cause that yes. The other being the throttle blades not being closed enough.

If you didn't get the manifold from a UK supplier then I would just have it welded up. Or just epoxy a patch over it with a fuel resistant epoxy.

You might even get away with a fibreglass patch.

Obviously it would be tricky to drill and screw a patch over it due to the difficult access.
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Pete
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Post by Pete »

You did well to find that, not an obvious fault.

I would get it welded up or drilled and tapped and a plug inserted for quickness..........I have some very high quality epoxy that would do it, but I do not know how long it would remain fuel resistant........you are welcome to try. I am not a million miles away.........
Pete Wiseman; Cambridge.

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RobTwin
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Post by RobTwin »

If you do contact the supplier James, let us know how you get on. I'd be interested to hear how keen they are to supply you with a good new one, f.o.c. :shock:
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Pete
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Post by Pete »

Mancini racing sent me the wrong manifold once - their bad that they put their hands up to. They sent me the correct one and I was advised I could keep the other one; which was nice. Top service really...

Hope you have as much luck, don't offer to return if bought Stateside, the shipping will kill you.....
Pete Wiseman; Cambridge.

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Dave-R
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Post by Dave-R »

Pete wrote:Hope you have as much luck, don't offer to return if bought Stateside, the shipping will kill you.....
Plus you will pay VAT on it again.
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Dave-R
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Post by Dave-R »

Pete wrote:You did well to find that, not an obvious fault.

I would get it welded up or drilled and tapped and a plug inserted for quickness.......
Not sure you will get access to the underside with that being a small block air gap manifold.
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Pete
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Post by Pete »

Dave wrote:
Pete wrote:You did well to find that, not an obvious fault.

I would get it welded up or drilled and tapped and a plug inserted for quickness.......
Not sure you will get access to the underside with that being a small block air gap manifold.
Do it from the inside...
Pete Wiseman; Cambridge.

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Dave-R
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Post by Dave-R »

Oh I thought it was further down the runner than that. :oops:
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