Replying to Thread:

valve tapping

Created On Thursday 29, June, 2017 8:48 AM by stonefly

Please enter your login information to post.
Username:
Password:
I want to stay logged in.

Message Title:

Message Text:

http

https

ftp

mail

hr

highlight

LI Quote

HTML code is not permitted. Special symbols permit some HTML functionality.

stonefly

Posts: 286
Joined: Feb 2008

Thursday June 29, 2017 08:48
3406b If it turns out to be a cam lobe, requiring the replacement of the cam, what is involved with removing the cam on this engine?

Quote

Top

Bottom

westcoast

Posts: 982
Joined: Dec 2008

Friday October 27, 2017 06:09
Bonnet off radiator out regards david ------------------------- detroit

Quote

Top

Bottom

stonefly

Posts: 286
Joined: Feb 2008

Thursday September 27, 2018 06:40

The tapping stopped on its own, not likely for a valve, correct? It stopped for a few months - no noise at all. Before it stopped, I checked the engine with a stethoscope. I pinned the noise down to number 3, inside the valve cover.

Recently the noise started again, but this time it was more of a clatter. It was intermittent. The engine started running rough at times, especially at idle. It would be idling smooth and then suddenly pick up a miss. Then the miss would disappear.

This leads me to believe that the problem must be an injector nozzle. Now I notice that when I run it with the pedal to the floor, I get a continuous trail of heavy dark gray smoke from the exhaust, even when the clattering sound has subsided to zero. That is new. Ordinarily the smoke was only mildly apparent on continued hard pull.

I think now that this must be a faulty injector nozzle. I am very cautious about bringing this truck into Caterpillar. I have heard horror stories about how seemingly minor problems can turn into million dollar repair bills. I ain't rich.

A bum injector could behave intermittently, couldn't it, clattering and then quieting down, and then suddenly clattering again? A malfunctioning injector could cause a lot of smoke on hard pull, correct? Even if it's not missing at the time?

Quote

Top

Bottom

fullman

Posts: 4
Joined: Jul 2011

Friday July 26, 2019 07:19
Hello. I think this should help.caterpillar manuals online

Quote

Top

Bottom

[ CATEGORY LISTINGS : THREADS ]

Customer Testimonials

'It took at least 4 weeks before we got our first inquiries for the 28 engines we listed - 3 months on we are making 3 to 4 sales per month! We're really pleased and I like the feature that shows how many views our engines get.'

Pete Melhuish, Northwest Diesel Parts, Portland, Oregon, USA

'Just sold a Deutz engine via DieselEngineTrader.com. Great!'

Johny Stauffer, Stauffer Group, New Holland, USA

'Had a Mack 7427 in my shop for 2 years and couldn't sell it! Within a month of advertising on DieselEngineTrader.com I sold the engine to a guy in Oklahoma - was glad to get rid of it!'

Stan iles, Aqua Fria Aggregates, Arizona, USA

valve tapping

Customer Testimonials

Newsletter