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CATEGORY LISTINGS > CATERPILLAR > pinging sound around exhaust manifold [ REFRESH ]
Thread Title:

pinging sound around exhaust manifold


Created On Tuesday March 12, 2013 14:32 Diesel Talk
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ricky
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Note Tuesday March 12, 2013 14:32 View thread in raw text format
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i have a 3406e model 2ws, 2000, i hear a pinging sound coming from around the exhaust manifold or turbo area. almost sound's like detonation in a gas engine... i think i do have another weak injector, i have replaced 2 since i bought it new in 2000, 770,000 miles.....would a weak injector make that sound... i don't know what else it could be....

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 ricky.......
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JoeZ
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Note Tuesday March 12, 2013 21:45 View thread in raw text format
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If you have detirmined it not to be an exhaust leak, it could be an injector....or the turbo going bad. I have seen overfueling cause more of a knock than a ping...... I haven't seen this problem in the 3406E but have in others. I think it could be time to have the injectors gone through...at least with all those miles it is a good investment....If the turbo is going bad, it will start putting metal in your engine. Take off the intake side and check for loseness....

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 One of the last 2 Stroke mechanics left.
44 years in the business and worked on everything from 53 series to 149 series. Winding it down now...time to move on.
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westcoast
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Note Saturday March 16, 2013 08:03 View users profile View thread in raw text format
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As joe said definitely check the hot wheel as one of your manifold diffuser rings could be failing ( if still fitted ) Regards David

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 detroit
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ricky
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Note Thursday March 21, 2013 16:42 View thread in raw text format
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i did reseal the exhaust manifold and new studs last year....as a preventitive maintenance.....i didn't under stand why the metal sleeve that seems to reduce the size of the port was part of it....what is the reason for it ? ....

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 ricky.......
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westcoast
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Note Friday March 22, 2013 02:51 View users profile View thread in raw text format
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flow and heat transfer Regards David

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 detroit
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ricky
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Note Saturday March 23, 2013 18:57 View thread in raw text format
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thanx for the reply.........

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 ricky.......
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ricky
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Note Saturday March 23, 2013 19:05 View thread in raw text format
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i replaced the turbo with a cat reman at 500,000 just for piece of mind, was running great at the time, and run great after up untill now. a little down on power and a rough ness at idle. i pulled the piping back today just to have a look and all was fine. i think i just need some new injectors. probably will put injector cup o-ring's in at that time...... i need to buy or borrow the removal and install tool's to do the injector cup's.

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 ricky.......

Edited: Saturday March 23, 2013 at 19:08 by ricky
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ricky
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Note Wednesday March 27, 2013 13:58 View thread in raw text format
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i found the tool... it's 188.00 made by monaco.... never heard of them but the quality look's ok.....should i replace the whole injector cup and o-rings, or just the o-rings.....i've heard there is an updated cup..... are they worth replacing?

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 ricky.......
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westcoast
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Note Friday March 29, 2013 06:01 View users profile View thread in raw text format
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Only if the cups are burnt or leaking Regards David

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 detroit
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ricky
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Note Friday March 29, 2013 18:58 View thread in raw text format
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thanx for the reply........

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 ricky.......
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TDcrash63
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Note Friday March 29, 2013 19:01 View thread in raw text format
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I have purchased a few things from Monaco tool, very high quality
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ricky
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Note Sunday March 31, 2013 12:31 View thread in raw text format
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good to hear.... i just ordered what i needed......

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 ricky.......
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ricky
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Note Thursday December 18, 2014 14:59 View thread in raw text format
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850,000 miles and that sound is still there.......

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 ricky.......
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