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by Merlyn
Fri May 24, 2019 12:23 am
Forum: Crew Mess
Topic: New engine
Replies: 403
Views: 128308

Re: New engine

Concerning the draw I mentioned Andrew I actually referred to the inches of Mercury drawn by the vacuum created. The scale commences at 0 at atmospheric pressure ( i.e. 14-7 ) going up to a perfect vacuum of 29-92HG, It's the pressure of a column of Mercury exerts one inch high at atmospheric pressu...
by Merlyn
Sun May 19, 2019 12:21 am
Forum: Crew Mess
Topic: New engine
Replies: 403
Views: 128308

Re: New engine

But will it draw 29-92 HG Andrew?
by Merlyn
Wed May 08, 2019 9:18 am
Forum: The Workshop
Topic: De Salination
Replies: 1
Views: 102

Re: De Salination

Well it's certainly different
by Merlyn
Thu Apr 25, 2019 6:24 am
Forum: The Workshop
Topic: Cat 3508 JW pressure issues
Replies: 8
Views: 365

Re: Cat 3508 JW pressure issues

Wonder what model engine that was JK? Pre CR I bet? Was the rod fitted the wrong way round or did the design of that particular engine not allow the bottom cap to be fitted ass about face? Splined that is. IE was the oil hole in the top part of the rod not facing the camshaft. Still dont understand ...
by Merlyn
Mon Apr 22, 2019 1:31 am
Forum: The Workshop
Topic: Cat 3508 JW pressure issues
Replies: 8
Views: 365

Re: Cat 3508 JW pressure issues

Interesting one. Wonder why the temp. operating range change? Reckon the infra red ray gun for measuring temps. each side of the stat may well have spotted that one? Cheap as chips to buy and I find it invaluable for tracing faults such as this. Nice and easy to use, in writing it's also nice to see...
by Merlyn
Sat Apr 20, 2019 2:48 am
Forum: Crew Mess
Topic: New engine
Replies: 403
Views: 128308

Re: New engine

Hereby it would appear to me that we have a Felix ( Andrew ) look a like character. Could it be a relation, has Felix moved or has he resurfaced incognito? On reflection however the writing style would appear different and the article is not supported by in depth " working " diagrams. This...
by Merlyn
Wed Apr 10, 2019 11:55 pm
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 27
Views: 1242

Re: Dirty/brown/orange colour cooling water

PPS,

Also had success with that lower O ring.

The liner one that is.
by Merlyn
Wed Apr 10, 2019 12:40 am
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 27
Views: 1242

Re: Dirty/brown/orange colour cooling water

Concerning the now absence of air in the system apon start up without any obvious defects cleared I will stick my neck out here and venture thus; Someone on board has slipped two bottles of "steel seal " into the header tanks under the cover of darkness into each engine being in the pay of...
by Merlyn
Thu Apr 04, 2019 11:52 pm
Forum: The Workshop
Topic: Dirty/brown/orange colour cooling water
Replies: 27
Views: 1242

Re: Dirty/brown/orange colour cooling water

1 Mosley, Have you joined up the sniffers club yet? Been waiting with baited breath here, Or have you drawn out and bought yourself a million adapter pressure tester kit? What's the answer? Don't tell me you have drilled and tapped the top hose and screwed in one of those vent only air bleeders? Or ...
by Merlyn
Thu Mar 21, 2019 2:34 am
Forum: The Workshop
Topic: Cat 3508 JW pressure issues
Replies: 8
Views: 365

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: 168

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: 423

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: 27
Views: 1242

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: 27
Views: 1242

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: 27
Views: 1242

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...

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