Brief, loud groaning noise at start up
#1
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Brief, loud groaning noise at start up
Hi All,
Haven't done much on the list or with my shark lately, just been too busy. We are buying a new home, so I have been busy fixing up the old one to sell. Good news is the new house has a much larger garage in which to pamper the mechanical mistress.
Anyway, I have not driven the car in about two weeks. Decided to fire her up for a quick spin and to give her a bath. On start up, there was a very loud groaning, grinding sound under the hood. Only about 2 or 3 seconds worth, but it got my attention to be sure. Car started normally and continued to idle fine after the noise abruptly stopped. Checked under the hood and everything looked fine. No belt problems, no new noises and no death smoke. Went ahead with the quick spin and had no problems at all.
My first thought was air pump. Don't know why I think this but I thought I would check with the esteemed members of the list for an opinion. Is this something that I should be concerned about and investigate further? If so, what do I look for?
TIA
Regards,
Bill
Haven't done much on the list or with my shark lately, just been too busy. We are buying a new home, so I have been busy fixing up the old one to sell. Good news is the new house has a much larger garage in which to pamper the mechanical mistress.
Anyway, I have not driven the car in about two weeks. Decided to fire her up for a quick spin and to give her a bath. On start up, there was a very loud groaning, grinding sound under the hood. Only about 2 or 3 seconds worth, but it got my attention to be sure. Car started normally and continued to idle fine after the noise abruptly stopped. Checked under the hood and everything looked fine. No belt problems, no new noises and no death smoke. Went ahead with the quick spin and had no problems at all.
My first thought was air pump. Don't know why I think this but I thought I would check with the esteemed members of the list for an opinion. Is this something that I should be concerned about and investigate further? If so, what do I look for?
TIA
Regards,
Bill
#2
Rennlist Member
Pull off the air pump hose up near the valve cover and look inside. It should be pretty clean. If there is loose junk in there, address the problem or you may junk up your diverter valve or worse, your check valve. If the check valve doesn't seat properly it will hasten the demise of the diverter valve and pump. There are some pics on my site in the "Shark Attack" section, round 6 if you want to see where the parts live. Round 9 shows the check valve R&R though it's for an early car.
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#9
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As it turns out all is well... just a minor booboo with the only thing damaged being my pride!
Upon further inspection in the light of day today, I found that the 17mm front mounting bolt for the A/C compressor had come loose. It had come completely unthreaded and was able to ride up against the A/C drive belt. Tightened the offending bolt back up. Checked to make sure the belt was okay and I am good to go... I recently refurbished the A/C system and must of forgotten to snug this difficult to reach bolt.
No harm, no foul I guess you can say. Anyway, thanks for the input. Nice web site David btw.
Regards,
Bill
Upon further inspection in the light of day today, I found that the 17mm front mounting bolt for the A/C compressor had come loose. It had come completely unthreaded and was able to ride up against the A/C drive belt. Tightened the offending bolt back up. Checked to make sure the belt was okay and I am good to go... I recently refurbished the A/C system and must of forgotten to snug this difficult to reach bolt.
No harm, no foul I guess you can say. Anyway, thanks for the input. Nice web site David btw.
Regards,
Bill
#12
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Dave, again thanks. It's people like you who go out of their way to share that makes the enjoyment of these cars all the better. Wish I was html savy and I would share some of my mechanical exploits... loose bolts omitted of course!
Normy, dude, you crack me up! But thanks for sharing in your own special way.
Regards,
Bill
Normy, dude, you crack me up! But thanks for sharing in your own special way.
Regards,
Bill
#13
Rennlist Member
Originally Posted by Wild Bill
Dave, again thanks. It's people like you who go out of their way to share that makes the enjoyment of these cars all the better. Wish I was html savy and I would share some of my mechanical exploits... loose bolts omitted of course!
Normy, dude, you crack me up! But thanks for sharing in your own special way.
Regards,
Bill
Normy, dude, you crack me up! But thanks for sharing in your own special way.
Regards,
Bill
As for HTML, it's really easy. The code for a basic page is just a text file with an .htm or .html file extension and the following contents as a minimum(plus example text and image).
Code:
<!doctype html public "-//w3c//dtd html 3.2 fINAL//en"> <html> <head> <title></title> </head> <body bgcolor="#ffffff" text="#000000" link="#ff0000" vlink="#800000" alink="#ff00ff" background="?"> Note: html method of creating line breaks<br> requires a special tag. Here is <a href="http://members.rennlist.com/sharkskin">an example of a regular link</a> and the next one <a href="http://members.rennlist.com/sharkskin" target="_blank"> opens in a new window.</a> Try not to over-use the second type. <img src="http://members.rennlist.com/sharkskin/Smiley_Smile-JumpCrazy.gif"> </body> </html>