Brakes and serpentine belt!
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Brakes and serpentine belt! - 7/3/2008 1:48:17 PM
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natenorrish
Posts: 9
Joined: 7/3/2008
Status: offline
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Hey,
About 2 months ago I bought my blazer (4.3L 4WD 1999 LT), and have had nothing but problems... I love my blazer but I hate it too... I don''t want to hate it anymore! I live in the UK so getting parts is easy, but expensive or slow.
Had problems with the brakes, pedal just went to the floor under pressure; so had the master cylinder replaced, but when it came to bleeding the brakes, realized I had to get new bleed nipples and a brake caliper. So a week later I have the parts needed and for some reason the brake pipe connection to the caliper is leaking. Any idea why this would be?
The serpentine belt problem, well it appears to be the right belt but it will not go on at all, it''s just too tight. Is this normal, and is there a good way to get the thing on?
Thanks
Nate
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RE: Brakes and serpentine belt! - 7/4/2008 4:51:01 AM
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natenorrish
Posts: 9
Joined: 7/3/2008
Status: offline
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I have a really bad feeling the bolt has been put in at an angle for the brake hose connection to the caliper. :( Just had a close look and the washer doesn''t seem to be flush with the caliper, unless this is part of the design, which I highly doubt! If the bolt has been cross threaded, I''m guessing I''m going to need another new caliper :S I''m gutted!!!
If anyone has any information please let me know.. I appreciate any help!!
Cheers
Nate
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RE: Brakes and serpentine belt! - 7/4/2008 8:36:57 AM
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portcqb
Posts: 380
Joined: 3/13/2008
Status: online
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Yah it sounds cross threaded im not sure if you will need to replace it you may be able to take it out and put it in correct.
_____________________________
1997 Olds Bravada AWD 4.3L Auto ~34,800mi(high idle time)
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RE: Brakes and serpentine belt! - 7/4/2008 11:39:49 AM
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natenorrish
Posts: 9
Joined: 7/3/2008
Status: offline
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Thanks for the reply portcqb!
Could you please take a look at the pics here:
http://picasaweb.google.co.uk/norrish/Blazer/photo#5219229068965425538
These are the best I could do, was raining at the time (what can you expect being England!!) you can just see what I''m talking about I think! Not the best pics :S
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RE: Brakes and serpentine belt! - 7/4/2008 12:46:02 PM
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swartlkk
Posts: 14299
Joined: 5/1/2005
From: Waterloo, NY
Status: offline
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It is difficult to be able to tell from those pictures if the bolt is cross threaded. You should be able to easily tell by removing the banjo bolt though... You should see the threads messed up if you cross threaded it.
_____________________________
Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: Brakes and serpentine belt! - 7/5/2008 10:47:56 PM
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if6was9
Posts: 88
Joined: 1/29/2008
From: Columbus, Ohio
Status: offline
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G''day, when you tried to install the serp belt, did you relieve the tension on the idler pulley?
On the brake hose, did you use new crush washers and torque to the proper spec?
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Growing older is mandatory... growing up is something entirely different. - Annon
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RE: Brakes and serpentine belt! - 7/6/2008 5:29:51 AM
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natenorrish
Posts: 9
Joined: 7/3/2008
Status: offline
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hey if6was9,
I''''m afraid I''''m a total newbie when it comes to engines, my friend is the mechanic (but an apprentice!!). All I know is, he pulled something up to slacken the old belt to take it off, and whilst in that position we both tried putting the new belt on.
They were new crush washers, but he used the old banjo bolt. He said it was rounding off so I think it''''s a case of ordering 2 new washers and a banjo bolt. As for torque, no idea but most likely not due to the condition of the bolt. Just incase my friend doesn''''t know, how do you torque the bolt to the proper spec, and do you know what the right torque is?
Many thanks!
Nate
< Message edited by natenorrish -- 7/6/2008 5:32:09 AM >
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RE: Brakes and serpentine belt! - 7/14/2008 10:27:50 AM
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if6was9
Posts: 88
Joined: 1/29/2008
From: Columbus, Ohio
Status: offline
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Sorry I forgot about ya Nate. See ya got it solved. In the future 32 foot lbs torque for the front banjo bolt. Do a compleat system bleed. The brake pedal shold only travel ''bout 2" (50mm). Keep''er rollin''. 
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RE: Brakes and serpentine belt! - 7/14/2008 5:35:59 PM
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portcqb
Posts: 380
Joined: 3/13/2008
Status: online
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DOT 3 is the older fulid spec and is required in these trucks. DOT 4 is a newer spec, some DOT 4 fluids are compatible with DOT 3 systems. It is a partly or fully synthetic fluid that will not compress correctly in a DOT 3 system unless it specifies DOT 4/3
_____________________________
1997 Olds Bravada AWD 4.3L Auto ~34,800mi(high idle time)
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RE: Brakes and serpentine belt! - 7/15/2008 8:33:40 AM
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if6was9
Posts: 88
Joined: 1/29/2008
From: Columbus, Ohio
Status: offline
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quote:
ORIGINAL: natenorrish
Hey if6was9,
No worries - I tested the brakes out last night properly, foot to the floor felt the ABS kick in.. they are working but still quite easy to put the foot down. So you say only 2 inches movement, but guessing after those 2 inches it should be more firm and then the ABS kicks in when braking hard? Pretty sure somewhere in between the first 2 inches of movement the brakes kick in and slow the beast really well.
As for fully bleeding the system, we did that but don''''t think we did it properly! Do you happen to know what the difference between DOT 3 and DOT 4 brake fluid is?
Cheers
Nate
The other difference between DOT 3 and 4 is the boiling point.
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Printable Version
... so they failed my blazer because the brake went to the floor with hardly any effort... is this a problem? When the ignition is off, the brake pedal is nice and firm. 
- I tested the brakes out last night properly, foot to the floor felt the ABS kick in.. they are working but still quite easy to put the foot down. So you say only 2 inches movement, but guessing after those 2 inches it should be more firm and then the ABS kicks in when braking hard? Pretty sure somewhere in between the first 2 inches of movement the brakes kick in and slow the beast really well. 