C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

AIR Pump prototype failure

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Old Nov 23, 2003 | 07:43 AM
  #21  
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Default Re: AIR Pump prototype failure (smacko)

If you make me an eliminator bracket from Jakes link, I'll give you my pump! ;) I want to get rid of mine asap to clean the engine bay up.
Trouble is; I think they look fairly poopiety :confused:
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Old Nov 23, 2003 | 06:23 PM
  #22  
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Default Re: AIR Pump prototype failure (smacko)

It might look poopiety , friend, but it doesn't crap out after 10 miles
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Old Nov 23, 2003 | 09:53 PM
  #23  
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Default Re: AIR Pump prototype failure (smacko)

Trouble is; I think they look fairly poopiety :confused:
My car - not yours! ;)
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Old Nov 24, 2003 | 02:39 AM
  #24  
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Default Re: AIR Pump prototype failure (britvette)

Hey mate; don't take it to heart; you are most likely (Judging by recent events) talking to a future convert of the eliminator!!! :cry

I guess it's just something to get used to.

My NEW advice toOEM AIR pump owners; USE THE DAMNED ELIMINATOR!!!
:lol:
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Old Nov 24, 2003 | 02:45 AM
  #25  
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Default Re: AIR Pump prototype failure (smacko)

Latest 'progress' out of sheer tenacity (read also stupidity!) the guys have the pump BACK for 3rd time; they've offered to aluminium weld
the rear of the unit where they have the circular disk and build it up then
lathe it to act as a keeper, so bearing will be again flush with inside of
that area which by the way DID perfectly line up pulley on version 2! Also
he's going to look at what he can do to rectify the new pulley wobble (Which
I asked him to run up to speed to check it all) ALSO, I mentioned the heat
(Very hot) of the shaft even after 1/2hr of shutdown which I checked in the
darkness awaiting tow truck. He'll drill some holes in the front and back
plate to help cooling (Which is what I suggested on prototype 1 before I
picked it up) as he said tho; theres no way you can drip feed oil onto a
sealed bearing. Yes, since I've gone THIS far with it, I'll see if third
time lucky is true (Or, total attempt number FIVE if you coun't S'Raynut's two! (If not, I'll be meaning it when next time - as I did
this time when I got there, I tell him to assume the position!)

My mate reckons they should have used stainless steel, not axle steel for the
shaft tho...
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Old Nov 24, 2003 | 02:48 AM
  #26  
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Default Re: AIR Pump prototype failure (Chris O')

True. :iagree:
Chris, If I'm late to the next club meeting, walk in with a smirk & have slightly greasy hands, and when you go to leave, you miraculously find your fan belt very VERY slack - It wasn't me!!! :lol:
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Old Nov 24, 2003 | 07:29 AM
  #27  
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Default Re: AIR Pump prototype failure (smacko)

Hey mate; don't take it to heart; you are most likely (Judging by recent events) talking to a future convert of the eliminator!!! :cry

I guess it's just something to get used to.

My NEW advice toOEM AIR pump owners; USE THE DAMNED ELIMINATOR!!!
:lol:
Steve,

I am in no way offended, and mean no offence. I think the one I made looks a bit "poopie", in fact it was originally a bit of a prototype, until I came up with something better.

My point is though, that functionality is paramount, and it has held up so well that I took it off, had it powdercoated, and moved on to the next job.

Cheers

John

(PS - shame about the rugby :rofl: :lolg: )
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Old Nov 24, 2003 | 08:04 AM
  #28  
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Default Re: AIR Pump prototype failure (britvette)

Let's start with the new salutation to my mate smacko who recommended 'bodgy brother engineering' to me and then I had the pulley fall off twice -

damm you smacko


Yes !!!!!! ........I feel better.

I have my pump being re-engineered locally here in Cairns. I've given up posting it 1000 miles south to be butchered any more.

Thanks to smacko's last minute road testing of his latest 'bodgy' repair yesterday, we should have all possibilities covered.

How hard can it be to make the pump freewheeling ? If you can do it with bits of mechano (The Eliminator) surely using the existing pump and bracket would be a breeze.

My advice would be for others not to be put off by our experience. If an engineering firm has 5 failures out of 5, please don't judge the idea by the results so far.

I'm sure it's already been done succesfully many times, anyone care to chip in with their results ?

Hey Britvette, Re the Rugby England V Australia last Sat night in Sydney -
it was a hard fought game, I hate losing but the English side appeared more disciplined the entire game - well done.

Shame about the Cricket, Tennis, Hockey, Running, Swimming, Rugby League, Cycling etc etc ...didn't we even win the world darts last year ?

he he he

S'nut

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Old Nov 24, 2003 | 08:18 AM
  #29  
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Default Re: AIR Pump prototype failure (Stingraynut)

Shame about the Cricket, Tennis, Hockey, Running, Swimming, Rugby League, Cycling etc etc ...didn't we even win the world darts last year ?

he he he

S'nut
Erm . . . . .I don't know what you're talking about ... :blueangel: :blueangel:
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Old Nov 24, 2003 | 06:05 PM
  #30  
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Default Re: AIR Pump prototype failure (britvette)

Gidday again John;
mate, I realised you weren't really offended and nor was I, OK? :seeya

I AGREE functionallity BEFORE visual appeal. Who would have thought 5/5 attempts from an engineer would STILL not come up trumps?!?!!
Here's hoping that version SIX (Mine) will be ok. I WILL be looking for an eliminator tho, to keep on hand, such is my faith in this project now.

As S'Raynut said to me, it's not rocket science!!!

Just had a thought (Oh God, here he goes again!); the eliminators would be more appealing if they could somehow be mounted UNDER the front of engine, rather than sitting up like they do...ANYONE?
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Old Nov 24, 2003 | 06:14 PM
  #31  
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Default Re: AIR Pump prototype failure (Stingraynut)

Let's start with the new salutation to my mate smacko who recommended 'bodgy brother engineering' to me and then I had the pulley fall off twice -

damm you smacko
...Consider me damned! :blueangel:

Lets see how your THIRD version of pump goes...be interesting to see if it's a generic problem with the idea or if we can pidgeon-hole it as a lack of foresight with that particular firm...

Only reason I recommended them in the first place, is that they HAVE done brilliant work for me in the past, as well as for a friend. My previous encounter with them was when they machined (In this VERY expensive unit such as used on Formula 1 engines) my old Honda (Can I say that word here?) M/cycle's head; ABSOLUTELY BRILLIANT job!!! Then again, I guess in hindsight, that'd be more a machinery kudos than the operator, who with a bit of basic training could know how to use it...

Anyway, keep everyone informed how it goes (We'd best keep this subject open for a few thousand miles!).

MEANTIME, I'm considering contacting my insurer and asking about a reduction in premium due to car being off the road for extended periods of time!! :jester
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Old Nov 24, 2003 | 07:08 PM
  #32  
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Default Re: AIR Pump prototype failure (smacko)

Just had a thought (Oh God, here he goes again!); the eliminators would be more appealing if they could somehow be mounted UNDER the front of engine, rather than sitting up like they do...ANYONE?
It's midnight here now, so speaking with the godlike authority and vision that a few cold Fosters gives you, I like the idea . . . . .but . . .it's the belt path that worries me. Unless that pulley is stuck up in the air, you dont get any wrap round the water pump, so you may have to go to an opposite rotation pump, and then there is getting a belt the right length . . .

Too many other probs to sort out at this stage.

John
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Old Nov 24, 2003 | 07:14 PM
  #33  
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Default Re: AIR Pump prototype failure (britvette)

Too many other probs to sort out at this stage.
:iagree: :iagree: :iagree:

Pity one couldn't just get a shorter pulley and have it all work!!
:cheers:
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Old Nov 24, 2003 | 08:41 PM
  #34  
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Default Re: AIR Pump prototype failure (smacko)

Quote from smacko "...Consider me damned" ........... - agreed.

I looked into re-routing the belt before deciding to engineer the pump and it's very difficult to get a fair amount of turn on all the remaining pulleys.

Allied bearings have belts of different sizes and the part number corresponds to the length in mm which is handy - but I hope my pump will be fixed now - I'm going to pick it up in 30 mins.

Britvette - do you mean you drink Fosters ? You're a crazy mixed up kid, living in UK, driving an American car and drinking Aussie beer. Hang on, maybe you're on to something.

S'nut


[Modified by Stingraynut, 11:43 AM 11/25/2003]
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Old Nov 25, 2003 | 11:16 AM
  #35  
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Default Re: AIR Pump prototype failure (Stingraynut)


Britvette - do you mean you drink Fosters ? You're a crazy mixed up kid, living in UK, driving an American car and drinking Aussie beer. Hang on, maybe you're on to something.

[Modified by Stingraynut, 11:43 AM 11/25/2003]
You forgot the German ****!

Back to the pump - I think one of your problems is getting the thing to run square, to the belt, if it were truly at a rihgt angle to the belt there would be no sideload.

I think this is important whatever the design of the eliminator :confused:
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Old Nov 25, 2003 | 08:17 PM
  #36  
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Default Re: AIR Pump prototype failure (smacko)

Smacko: you have an instant message ;)
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Old Nov 25, 2003 | 08:35 PM
  #37  
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Default Re: AIR Pump prototype failure (britvette)

Might just be easier to order one of these. They come in black and polished. You dont have to do anything but bolt it in. http://www.madvet.com/-/shop?frame=1.842
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Old Nov 30, 2003 | 09:04 AM
  #38  
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Default Re: AIR Pump prototype failure (smacko)

My Air pump job version three has not instilled confidence...
I DID drive the Vette to work today but the stress of wondering if/when it'll fail AGAIN has left me tense instead of enjoying driving it. Popped the hood at work and found a nice ring of brownish dust at rear of unit, which almost definately says to me now that the shaft is NOT acurately aligned between the two bearings - prob what caused the first one to fail as lateral force is slowly grinding away shaft (Which is axle steel now)
:cry
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Old Nov 30, 2003 | 03:20 PM
  #39  
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Default Re: AIR Pump prototype failure (smacko)

My NEW advice toOEM AIR pump owners; USE THE DAMNED ELIMINATOR!!!
:lol:


i agree!! :iagree:

now if you need one check here: http://members.shaw.ca/vettek/
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Old Dec 1, 2003 | 03:45 AM
  #40  
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Default AIR Pump prototype failure UPDATE!

OK, Now I KNOW that my fears of version three pump weren't unfounded...

Drew a line across the rear of unit, across bearings as shown(hopefully).


Went down to local store and back (About 1 mile return trip) What you can CLEARLY see is that shaft IS turning inside of inner bearing surface. I have just removed pump for the zillionth time, and it DOES turn much more freely than when I put it on AND you can even see shaft moving within bearing!!! AND it sounds like a rusty hinge on a gate.

No more chances, I'm asking the 'engineer' for my money back in the morning (I won't hold my breath) :mad :mad :mad :mad :mad :mad
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