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by Merlyn
Thu Mar 21, 2019 2:34 am
Forum: The Workshop
Topic: Cat 3508 JW pressure issues
Replies: 1
Views: 46

Re: Cat 3508 JW pressure issues

I reckon it's yet again another case for the pressure tester on the header tank ( and for testing the correct cap lift psi ) together with the temp. Ray gun temp. measuring device. Again like the Volvo write up re shut down over pressuring the coolant system seems a bit weird it's had a rebuild and ...
by Merlyn
Sun Mar 17, 2019 5:52 am
Forum: The Workshop
Topic: Piston Ring Gap
Replies: 1
Views: 72

Re: Piston Ring Gap

Years ago whe I started out we were shown how to manufacture piston rings, not only for internal combustion engines but reciprocating engines and Weir pumps and all general service steam driven pumps etc.As with older engines ( back in the early sixties on ) spares were not always available straight...
by Merlyn
Sat Feb 23, 2019 9:32 am
Forum: The Workshop
Topic: Schottky diode
Replies: 2
Views: 312

Re: Schottky diode

It's left handed?
by Merlyn
Sun Feb 10, 2019 3:53 am
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 23
Views: 659

Re: Dirty/brown/orange colour cooling water

The smokemeter used for checking diesel exhaust emissions would appear to be an entirely different machine as used by heating engineers and as such you could well have a problem here methinks. However should you be able to obtain a diesel smokemeter there could exist an opportunity for your Chief to...
by Merlyn
Sat Feb 09, 2019 5:26 am
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 23
Views: 659

Re: Dirty/brown/orange colour cooling water

Yes, I have sniffed header tanks before, it's certainly not a weekly or even monthly happening but provided the smokemeter is calibrated correctly and it's not a Mickey Mouse one ( looking on the net I see loads of them out there ) you should be able to detect any HC's present in the coolant system....
by Merlyn
Fri Feb 08, 2019 8:43 am
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 23
Views: 659

Re: Dirty/brown/orange colour cooling water

Ref. your remark concerning combustion products if you have access to a decent 4 or 5 gas analyzer machine another quick easy check is to ensure it's set to the HC mode and waft the sensor across the top of the header tank with the cap off having just run it up for a while and it will "sniff&qu...
by Merlyn
Fri Feb 08, 2019 12:50 am
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 23
Views: 659

Re: Dirty/brown/orange colour cooling water

In what year would these engines be and what do you mean by " full overhaul " carried out?
Piston/ liners/ bottom end/ crank grind / heads / new oil pump etc?
Interesting one.
by Merlyn
Thu Feb 07, 2019 12:44 am
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 23
Views: 659

Re: Dirty/brown/orange colour cooling water

Might be an idea to test the stats. too. We got a machine like a giant kettle, round holes in the top plate for the stat. to sit in, large electric element in the water container side of things to provide the heat and a built in temperature gauge to indicate water temps. Turn the stat. over, read th...
by Merlyn
Wed Feb 06, 2019 10:26 am
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 23
Views: 659

Re: Dirty/brown/orange colour cooling water

Pump up the coolant system at varying temps and see if there is a psi drop.
And run it with the psi gauge attached
by Merlyn
Tue Feb 05, 2019 10:19 am
Forum: The Workshop
Topic: wartsila 4WL20
Replies: 4
Views: 160

Re: wartsila 4WL20

Hmmm?
by Merlyn
Sat Feb 02, 2019 11:59 pm
Forum: The Workshop
Topic: Engine cannot start
Replies: 28
Views: 1252

Re: Engine cannot start

What like opening isolater shut off valves maybe? I always reckoned that air was good for supporting aircraft etc but never did fit in very well with fuel systems. Bit like being offered water really when out on the ale. My take on that stuff is it's best used for supporting fishes and the like. Can...
by Merlyn
Sat Feb 02, 2019 1:27 pm
Forum: The Workshop
Topic: Engine cannot start
Replies: 28
Views: 1252

Re: Engine cannot start

Looks like another one DITWJ.
( Dead In The Water Jobby)
Now we will never know.
Unable to further ones career yet again.
by Merlyn
Thu Jan 31, 2019 12:39 pm
Forum: Crew Mess
Topic: the battle against corrosion
Replies: 1
Views: 130

Re: the battle against corrosion

Wonder if they do a humanoid version
by Merlyn
Fri Jan 25, 2019 11:21 am
Forum: Crew Mess
Topic: Stellar Daisy Arrest Warrants
Replies: 2
Views: 237

Re: Stellar Daisy Arrest Warrants

Never seen a drop forged document
by Merlyn
Thu Jan 24, 2019 9:56 am
Forum: The Workshop
Topic: Engine cannot start
Replies: 28
Views: 1252

Re: Engine cannot start

I well remember from school days concerning the Dutch boy who saved his town by plugging the leaking dam with his finger but I suppose its to much to ask if that was how the journal oil hole was plugged in this case

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