KAD turbo problems

[targa31]

Not owned a boat for a couple of years now but keep checking in to this place to see whats going on and see what i am missing!

Often read the KAD engine issues having spent 8 years keeping mine (with regular help from Volvo Paul) running.

Often see threads on turbo problems.

Out of interest i made a turbo gauge which fitted my KAD 42's.



No use for it now so if anyone wants it please PM me. I am near the Hamble.

I had a few issues with air leaks on the cooler. (sheared bolts) that was a good way to lose pressure!

Not sure which KAD's (except 42 and 32) this would work with but pretty simple to make and cheap (ebay/amazon i think).

Need to use it under load though to get accurate reading.

disclaimer - i am no expert! an enthusiastic diyer

 

[DavidJ]

Hi targa
Have just sent you a PM. For some reason my iPad doesn't record sent messages so I hope you've got it.
Cheers
David

 

[targa31]

A forum member has bagsied my gauge.

I think this one on the link is very similar. about £10.
http://www.ebay.co.uk/itm/Universal...229582?hash=item2362ba43ce:g:pwUAAOSwpDdVeBwC

You also will need the adaptor which replaces the plug in the manifold. ( the blue item in the original post). Cant recall the size though so a bit of googling required!

 

[DavidJ]

A forum member has bagsied my gauge.

I think this one on the link is very similar. about £10.
http://www.ebay.co.uk/itm/Universal...229582?hash=item2362ba43ce:g:pwUAAOSwpDdVeBwC

You also will need the adaptor which replaces the plug in the manifold. ( the blue item in the original post). Cant recall the size though so a bit of googling required!

Can I trouble you to just put a rule on the OD of the blue thing and I can probably figure out the thread from there. alternatively if anyone has a link to the real item that would be great.

 

[targa31]

i found a link for 'the blue thing'

http://www.ebay.co.uk/itm/BOSCH-044...ITTING-BLUE-/121224447317?hash=item1c398a4555

this connects directly to the tube that comes with the gauge.

will also test your compressor pressure!

can't recall the pressures expected but goggle will have them.

good luck

 

[DavidJ]

Excellent, thank you

 

[BruceK]

Excuse the ignorance on my side here. Is this something you would / can leave permanently attached with the gauges mounted at the helm or used just for testing purposes?

 

[targa31]

Excuse the ignorance on my side here. Is this something you would / can leave permanently attached with the gauges mounted at the helm or used just for testing purposes?

yes you could leave it permanently connected but this would require a long length of pipe? I believe the volvo version is to use an electronic pressure sensor and an electrical gauge. This one is simply a cheap 'pressure meter'.

You would also be adding a potential weak point into the system?


again.....not an expert!!

 

[targa31]

Hi All,

I still have this gauge if anyone wants it. Free to a good home. I am based near the Hamble for collection.

 

[CLB]

Hi All,

I still have this gauge if anyone wants it. Free to a good home. I am based near the Hamble for collection.

PM sent

 

[Adethefridge]

Can you please confirm the correct place to attach the gauge is on the turbo itself
The reason I ask is when I had mine tested the engineer attached his gauge to a port on the edc unit ??
We then measured the gauge pressure at certain rpm''s on a sea trial
The pressures were lower throughout the whole rpm range including below 300 rpm ( compressor range )
I asked if we could replicate the test on the "good engine" and the pressures were the same ( lower than the chart pressures)
So I was no further forward ??
Any advise great fully received ...

 

[targa31]

Ade,

i think you have used an electronic version and i used a basic air pressure gauge. As i recall you unscrew a plug in one of the manifolds and replace it with the blue item in the pictures.

seem to recall aslo on the KADs the compressors kicked in at about 1500 up to 2500? others will confirm i am sure.

The pressure graphs are listed on the internet somewhere!

hope that helps

 

[Adethefridge]

thanks targa
It was definitely a compound gauge, same set up as you discribed removal of plug, screw in adaptor, connect flexible line and gauge, but it was fitted front Righthand side of engine above fuel cartridge filter from memory, the boat was in Portugal and the engineer didn't speak any English
Hopefully someone can explain...

 

[Colin K]

Hello,
I have TAMD 41b's which I think is the same block. I took a tapping from the inlet manifolds (one to each gauge) on mine there are two unused blanks towards the front. Another one was used to give boost to the diesel pump to give more fuel when the turbo boosts in my case this happens over 2700 rpm reaching max boost at about 3200rpm under load only not reving in neutral. I used simular take offs as the blue one in Targas pics but I got mine from Pirtek at great expence (for what they are) however they are tidy as they come off at 90 deg allowing the take off pipe to run flat straight away.
I have a picture of them somewhere.

Cheers, Colin

 

[targa31]

Ade

yes its a plug you unscrew on the inlet manifold and replace with the blue adapter. Just above the fuel pump.