squeels on start for couple of minutes

Technical questions and answers about the Mazda Bongo

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Big Rich

Post by Big Rich » Wed Mar 26, 2008 11:12 pm

would have thought that at some point over the temp range as its climbing ...there must be a point when the head/gasket/block/manifold are equalized in temp , the gap would have at some point re appeared ? wouldn't it ?? if thats the case why don't we just leave the stud ...if it squeals only on start up ? ps have you seen how slow the temp rises on a bongo?? mine would scream for around 8 -10 mins!! ...
note that its only noisy for 1 min ??? its not warmed up in that time ! .......... still think belts are slack/worn + the stud
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haydn callow
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Post by haydn callow » Wed Mar 26, 2008 11:21 pm

You could leave it I suppose...The squeel is caused by hot exaust gases rushing through a small gap. I would think that these gases will over time "burn" away more metal and make matters worse. Also the Manifold could warp. When I did mine and started to tighten up the nut on the new stud I could see the manifold pulling back into position.
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haydn callow
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Post by haydn callow » Wed Mar 26, 2008 11:24 pm

See the 4th reply to this topic from Doone.
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missfixit70
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Post by missfixit70 » Wed Mar 26, 2008 11:39 pm

Big Rich wrote:would have thought that at some point over the temp range as its climbing ...there must be a point when the head/gasket/block/manifold are equalized in temp , the gap would have at some point re appeared ? wouldn't it ?? if thats the case why don't we just leave the stud ...if it squeals only on start up ? ps have you seen how slow the temp rises on a bongo?? mine would scream for around 8 -10 mins!! ...
note that its only noisy for 1 min ??? its not warmed up in that time ! .......... still think belts are slack/worn + the stud
I have a digital temp gauge on the exhaust side of the block, only takes a couple of minutes of running & it's up to temp on the exhaust side :wink:
Last edited by missfixit70 on Thu Mar 27, 2008 12:06 am, edited 1 time in total.
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Big Rich

Post by Big Rich » Wed Mar 26, 2008 11:57 pm

_________________
Hi Kirsty. i have a TM4 digital temp unit sensor is on the top long water pump bolt.. i did put it under the manifold on a spare tapped bolt hole(easy option) but found false readings of block showing too higher temp due to manifold side temp ...so i suppose... i look like eating my hat ! pass the salt and pepper someone! mmmmm Rich
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missfixit70
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Post by missfixit70 » Thu Mar 27, 2008 12:04 am

the way I see it, I want to know how hot the hottest bit is as soon as it's hot & before it goes too hot :-k , you want some ketchup with that & a beer to wash it down :wink:
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stanredski

Post by stanredski » Fri Mar 28, 2008 6:41 pm

Hi folks,

just to update, drilled and extracted stud with a steady hand and a steely eye. how good is that, just set me right up for fab, feelin good friday night nothin gonna get me down cos I got my stud out oh yes!

I now know how to shift the alternator too bonus!!

just waiting for my new stud in the post and then all sorted

just a quick question how tight does it need to be and does it need a washer or anything?

You can count on me to ask the daftest things but I like to be sure and hey I got my stud out without any fuss so nar nar .
Answer me this last one and Ill bugger off
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Post by westonwarrior » Fri Mar 28, 2008 6:50 pm

Answer me this last one and Ill bugger off
No you will hang around and become a bongo nerd like the rest of us :lol: :lol: :lol:
stanredski

Post by stanredski » Fri Mar 28, 2008 7:34 pm

sadly i fear your correct ...the wife has already raised concerns she wont complain when were speeding up hill an glen though will she!!

but more importantly how tight do my nuts need to be!
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Post by bigdaddycain » Fri Mar 28, 2008 8:18 pm

Sorry stan, i can't help with your nut tightening dillema...but well done on a great extraction =D>
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stanredski

Post by stanredski » Fri Mar 28, 2008 9:40 pm

ah cheers guys you lot give me a warm fuzzy feeling or is the guinness

anyway do the studs use two nuts .. second one as a locker?
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missfixit70
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Post by missfixit70 » Fri Mar 28, 2008 9:42 pm

Haven't looked at mine that closely, what've the rest of the studs got?
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stanredski

Post by stanredski » Fri Mar 28, 2008 9:59 pm

durr duno I hadn't thought of looking ill give that a go in the light tomorrow , heat shield will have to come of though. can anyone save me the trouble ??

Cheers all

stan the red ski
stanredski

Post by stanredski » Fri Mar 28, 2008 10:00 pm

I must now go and replenish by glass of guinness and watch benidorm

tata

Paul
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Post by mikeonb4c » Sat Mar 29, 2008 1:27 am

Wow - great result stanredski. The kind of job where a satisfactory result is a long way from guaranteed. But you did it :lol: :lol:
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