MAJOR problem
#11
12-09-2009 | 01:25 PM
Junior Member
Joined: May 2009
Posts: 301
From: Kansas City
Taking those flanges apart will not be a nut & bolt job. Don't even start it without a blow torch or you'll just waste time and break tools. I just let my dad take out my old catalytic converter because the impact wrench wouldn't even touch the bolts. Then, I tried to remove the studs with an air hammer and still nothing. No amount of penetrating oil helped either. So, learning from that when I put it back together, I used all stainless hardware & plenty of nickel anti-seize. That metal was so tough that I tried to drill pilot holes in the studs (for the torch) and the carbide bit was thoroughly cooked after the first one. But, as soon as my dad put the acetylene torch on it, it was a breeze. I am guessing that this hardware is a class III or IV fit because WOW!
Regards,
Thomas
Regards,
Thomas
You never know how hard they are to get off until you try.
#13
12-09-2009 | 05:34 PM
Junior Member
Joined: May 2009
Posts: 301
From: Kansas City
I don't like them either. Most are tough but some are not too bad. Just be glad you are not working on exhaust from 30 years ago. They semed like they rusted overnite, most all connections were slip fit and you could never get them apart. Newer exhausts with different metal, high temp from the catalytic converters and flanged connections are a breeze by comparison.
#14
12-09-2009 | 08:26 PM
Thread Starter
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Beginning Member
Joined: Jan 2009
Posts: 21
From: Massachusetts
I have known the the previous owner for quite some time and called him up. He said he had similar problems when he first aquired it. I guess replacing the fuel pump was all it took to fix the rough idle it had. I wonder if it this problem is related to that.
The exhaust clamp doesn't look bad enough to take a torch to it, so regular tools will hopefully do the trick. I'll test it out tomorrow and see if it is the cat that is clogged. I had to recharge the battery today so I wasn't able to try it out.
The exhaust clamp doesn't look bad enough to take a torch to it, so regular tools will hopefully do the trick. I'll test it out tomorrow and see if it is the cat that is clogged. I had to recharge the battery today so I wasn't able to try it out.
#16
12-09-2009 | 11:10 PM
BF Guru
Joined: Sep 2009
Posts: 5,143
From: GTA, Ontario, CANADA
I don't like them either. Most are tough but some are not too bad. Just be glad you are not working on exhaust from 30 years ago. They semed like they rusted overnite, most all connections were slip fit and you could never get them apart. Newer exhausts with different metal, high temp from the catalytic converters and flanged connections are a breeze by comparison.
#18
12-13-2009 | 04:22 PM
Thread Starter
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Beginning Member
Joined: Jan 2009
Posts: 21
From: Massachusetts
Alright, the Blazer hasn't been starting since it has been sitting, so I can't test to see if the catalytic converter was clogged. It has plenty of spark, so I figured it wasn't getting enough fuel. I changed the fuel filter today and it had quite a bit of dirt/impurities in it and was coming out of the exiting end as well. That leads me to believe it is continuing to travel down the fuel line. It acts as though it is starving for gas. Is there any other fuel system component down-stream of the fuel filter that could possibly clog up other then the injectors? Or, could it be a fuel sensor or other similar electrical problem that is causing the engine from not starting?
#19
12-14-2009 | 12:21 PM
Junior Member
Joined: May 2009
Posts: 301
From: Kansas City
It sounds lile you should check the fuel pressure at the engine and see if you are getting 58-60 psi.
If dirt etc. was getting through the fuel filter it could have clogged up the injectors or possibly the regulator.
Are you sure particles other than just the brown color were coming through the filter. It is not uncommon for the fuel to come out of a dirty filter brownish colored. But dirt etc. should not get through the filter unless somehow the filter media developed a hole in it.
If dirt etc. was getting through the fuel filter it could have clogged up the injectors or possibly the regulator.
Are you sure particles other than just the brown color were coming through the filter. It is not uncommon for the fuel to come out of a dirty filter brownish colored. But dirt etc. should not get through the filter unless somehow the filter media developed a hole in it.
#20
12-14-2009 | 12:30 PM
BF Guru
Joined: Dec 2006
Posts: 6,594
From: Fort Worth,Texas
