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

Breathless AIR Pump Elim not fitting

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Old Jul 23, 2001 | 07:31 PM
  #1  
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St. Jude Donor '08-'09
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Did anyone experience this problem?
I ordered the Smog/AIR punp elim kit, and i get the air pump off, adn the alternator and all off... then i go to put the eliminator pulley on and NONE of the bolts fit in the stock car brackets, as it is supposed to fit as per the instructions. The bolts are a TAD too big, adn ive started stripping one of the holes out already. I am probably going to have to goto the hardware store and find fitting bolts...

Has anyone had this problem?
Is there a fix?

All help is appreciated.

Thanks!

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Old Jul 23, 2001 | 07:57 PM
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Im not sure what problems you may be having...all the bolts fit perfect when I got my kit.

You remove the smog pump and its brackets and the top alternator bracket..

Now the the BPP Kit, you install the 2 long bolts through the bracket and 2 round metal tubes onto the head above the power steering pump bracket.

the longest pulley bracket goes on top of the alternator and you bolt that down after you push the alternator out more..thats about it...they give you a small bolt for alternator mounting.

I had to loosen the long alternator bracket on the BPP kit to get proper alignment since it was bolted down already in the kit in back of the pulley and was at the wrong angle that way.
Then I tightened all back up after i set it on the engine and hand tightened everything.

What brackets are you trying to re use?

You dont re use any brackets on the car that you take off as far as I know.

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Old Jul 23, 2001 | 08:34 PM
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St. Jude Donor '08-'09
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im doing EXACTLY that... im putting it EXACTLY where it is suppsoed to go.. but the bolts for the pulley kit are too big around to fit in the bracket to mount it back on the engine
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Old Jul 23, 2001 | 08:54 PM
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Here are a couple pictures of mine installed. I hope it helps you out.



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Old Jul 23, 2001 | 09:23 PM
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If the bolts are too big to fit, youll need to have BPP send you the correct ones.
What I did was I threaded each bolt in the holes by hand first to make sure they would fit and go into the head and engine area.
I did this before I put the bolts through the BPP kit.
Hope you got it now and dont have to wait for the correct bolts if they sent you the wrong one.

BTw Biz, Great pics of their location and how its assembled.

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Old Jul 24, 2001 | 01:48 AM
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St. Jude Donor '08-'09
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Thanks for the pics.. here is my problem..


Bolts dont fit those brackets, i guess ill get them to send me correct ones as Bill's86Coupe suggested...


The hose w/ bolts that attached to the AIR pump here, what did you do with it? i noticed the kit came with rubber caps, but where do i put them? Remember, im car-illiterate I thought of sawing the pipe off and putting a cap on, but im sure theres a better way?

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Old Jul 24, 2001 | 01:09 PM
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When I get home tonight I will snap a few more pictures for you. The rubber caps are used on the exhaust manifold ports. I just removed the pipe you are refering to from the vehicle. Along with all of that plastic stuff on the passenger side of the engine.

Here is another observation though. I am unsure if this wll make any difference. I have an early 86 with good old cast iron heads. Your 89 no doubt has aluminum heads. Maybe there is some difference in the castings that might not make it fit your car. Maybe you received a kit for a early head motor. Maybe not. Like I said I am unsure. Just an observation.
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Old Jul 24, 2001 | 01:26 PM
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St. Jude Donor '08-'09
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I am very interested in that wad of plastic stuff on the passenger side. I assume that is part of the emmisions that the air pump is pumping to, so if i remove that i also assume that plastic bunch of stuff can come out as well?

Pics of how yours looks would be GREATLY appreciated!

thanks!
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Old Jul 24, 2001 | 01:30 PM
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The rubber caps go on the check valves (the black metal peice on the exhaust manifold small tubes next to the valve covers a bit.

What I did was i removed the check valves and went to the hardware store.
I got 1/2 inch threaded steel pipe caps and screwed them on where the check valves used to go.Used Vise grips to tighten them down fully since they are round and cant be wrenched on there.

I also took off the smog pipes that ran across the engine front and etc...the BPP kit is for if you leave them in place along ith the check valves, you just cap them off.

BTW, its a PITA to take off the pipes that go in front of the engine..i had to pull the a/c forward and had to disconnect the fuel rail lines to be able to get the pipe out since it curved around the passenger side valve cover.
Its also bolted to the top of the water pump.

So if youre not very skilled at wrenching your own cars, leave the pipes in place...make it easier to revert back to stock if necessary.

I would dread having to reinstall the smog tubes that run across the engine..hate taking the a/c bracket bolts and fuel lines loose to pull everything forward.
But it does look cleaner under there now..less cluttered.


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Old Jul 24, 2001 | 01:37 PM
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St. Jude Donor '08-'09
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hrmm no im not good at wrenching my own car ... BUT, that tube that goes in front of the engine, the opening whee it bolts to the air pump, it is in the way of the 2 main bolts for the BPP kit, It looks as though i can just barely press it back into the side of the radiator hose without it hurtind anything ,but shouldnt that tube be closed off? or does it matter?

the BPP instructions are all but useless, i got the pump off, and was ready to put the Kit in without looking at the instructions... but when it came to the minor things, like screws not fitting, and where to put those caps or what to do with the tubes and stuff, it totally lacks on that...

i appreciate everyone's help so far...

ill most likely goto pep boys today and get some slightly smaller brass bolts to use for the BPP Kit...
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Old Jul 24, 2001 | 01:48 PM
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Joe,
If you are still messing with it on Thursday, I'll be more than happy to come by and help you finish it up.
BTW, did you get your new clutch yet?
Oh, and I found some more starter shims in the bottom of my box, hows the bird starting? If it's starting OK, I won't mess with it. and sorry to hear about it eating another Alt belt. Talk to ya later.

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Old Jul 24, 2001 | 02:01 PM
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ok cool let me see if i am busy thurs

i got more shims for the Bird, the starter is still noisy, but hasnt failed yet...
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