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replacing donuts...

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Offline jzap

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replacing donuts...
« on: September 23, 2008, 08:30:40 PM »
On my 96 Tracker, the joint between the exhaust pipe flange and the catalytic converter is spring loaded.  Two long bolts thread into the flange on the exhaust pipe, and the joint is held together by springs on the bolts. 

Does anybody know if there is enough play in the joint to be able to pry it apart and remove and replace the donut gasket inside the joint? 
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Jim Z.
96 Tracker
66 Apache camper
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Offline Armour

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Re: replacing donuts...
« Reply #1 on: September 23, 2008, 08:41:38 PM »
No that is not possible! What is wrong with just unbolting it and replacing the gasket like normal people!LOL!
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89 Sidekick. 33's.  Lincoln Locker,4.24 T Case, 5.13 gears. Warn M8000 winch.
96 Tracker. 39.5's Locked 44's front and rear, 6.5 t case, 4.10 gears.
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Offline jzap

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Re: replacing donuts...
« Reply #2 on: September 24, 2008, 04:03:34 AM »
Typical...  bolt ends fused into solid mass of rust...

Guess its break em off, drill em out and retap???

So, Why is the joint spring loaded and not bolted down solid?
« Last Edit: September 24, 2008, 04:06:10 AM by jzap »
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Jim Z.
96 Tracker
66 Apache camper
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Offline pepatt

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Re: replacing donuts...
« Reply #3 on: September 24, 2008, 04:53:37 AM »
Quote from: jzap on September 24, 2008, 04:03:34 AM
Guess its break em off, drill em out and retap???

Blue-tip wrench.  ;D

Quote from: jzap on September 24, 2008, 04:03:34 AM
So, Why is the joint spring loaded and not bolted down solid?

It is a high vibration version of a lock nut.
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pepatt
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95sidekick

Re: replacing donuts...
« Reply #4 on: September 24, 2008, 08:22:43 AM »
heat the bolts by the thread till they GLOWING RED smash a socket on the head an it will come out like butter
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Offline jzap

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Re: replacing donuts...
« Reply #5 on: September 24, 2008, 07:11:09 PM »
Quote from: 95sidekick on September 24, 2008, 08:22:43 AM
heat the bolts by the thread till they GLOWING RED smash a socket on the head an it will come out like butter

Thank you.  I'll try it that way...
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Jim Z.
96 Tracker
66 Apache camper
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Offline Uncivilized

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Re: replacing donuts...
« Reply #6 on: September 24, 2008, 07:51:53 PM »
They're usually not very tight, the spring holds the pressure. Take a wire brush to them and give it a go. If you do drill, you don't need to tap, just drill the hole big enough so the nut is gone, and buy new spring bolts - they usually come with nuts, then use a big washer :D
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Offline ROSS

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Re: replacing donuts...
« Reply #7 on: September 24, 2008, 08:05:41 PM »
PB-BLASTER
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87 SAMI 1600 FUEL INJ. , TORQUER CAM, 6.5 TO 1T-CASE, 5"SPRINGS SHACKLE REVERSE ,2 BODY LIFT, LOCK-RITES FRONT W/ HEAVY-DUTY AXLES & ARB'S REAR  BFG 31 X10.50 X 16",  EXO SKELLETON,
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Offline Fordota

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Re: replacing donuts...
« Reply #8 on: September 24, 2008, 08:57:49 PM »
or just heat and let cool then you may not have to ruin the nuts if possible
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Offline bentparts

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Re: replacing donuts...
« Reply #9 on: September 25, 2008, 03:49:37 AM »
The joint is flexable to allow movement between engine and exhaust system. Ever watched your motor move around when you juce the throttle?
Quote from: jzap on September 24, 2008, 04:03:34 AM




So, Why is the joint spring loaded and not bolted down solid?
Also, it allows for different expansion rates between the various exhaust components as they heat up and cool down.
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The usual stuff, and 2nd generation Air to liquid intercooled TURBOCHARGER
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