Reply
 
Thread Tools Search this Thread
 
Old 09 April 2007, 16:10   #1
alt
Member
 
Country: Ireland
Town: Galway, West Eire
Make: Cranchi
Length: 5m +
Engine: 2 x Volvo KAD300
Join Date: May 2006
Posts: 644
Send a message via MSN to alt
Squeak from KAD32 supercharger

Calling all Volvo guru's...

Just noticed today, about 10 seconds after the supercharger engages there is a squeaking noise coming from the area.

It sounds like a bird tweeting, tweeting for a half second, then stops for a half second, squeaks for a half second and so on....

I inspected the belt, all of them infact and they look quite new and healthy and not too loose or tight. I thought that maybe the belt was squeaking under pressure, or could this be the supercharger clutch slipping?
__________________

__________________
alt is offline   Reply With Quote
Old 09 April 2007, 17:05   #2
Member
 
Country: UK - Scotland
Town: Isle of Skye
Boat name: Seafari - VHF CH 71
Make: Humbers+Catamaran
Length: 6m +
Engine: Volvo/Iveco/Suzuki
Join Date: Feb 2002
Posts: 196
If it is when the engine is under load, eg when the power is on, then i would say check the tension of your main drive belt - sounds like it is coming from the comp, but might not be - mine was quite fond of shredding the main drive belt now and again, so remem a spare.

tension is pretty high on these belts, so dont be to shy with your 15 ml spanner and 14ml socket - takes about a minute to tighten, and is a cheap 1st check.

pete
__________________

__________________
seafariskye is offline   Reply With Quote
Old 09 April 2007, 17:09   #3
alt
Member
 
Country: Ireland
Town: Galway, West Eire
Make: Cranchi
Length: 5m +
Engine: 2 x Volvo KAD300
Join Date: May 2006
Posts: 644
Send a message via MSN to alt
Hi Pete,
Happens both when engine is under load, and revving high in neutral.

Do you recommend that I check the comp belt? I haven't have a good look, is it tightened with a spanner/socket? If so, how tight? Or just 'damn tight'?
__________________
alt is offline   Reply With Quote
Old 09 April 2007, 18:02   #4
Member
 
Country: UK - England
Town: Dorset
Boat name: Pending
Make: Pending
Length: no boat
Join Date: Jan 2007
Posts: 198
Clutch

Quote:
Originally Posted by alt View Post
Calling all Volvo guru's...

Just noticed today, about 10 seconds after the supercharger engages there is a squeaking noise coming from the area.

It sounds like a bird tweeting, tweeting for a half second, then stops for a half second, squeaks for a half second and so on....

I inspected the belt, all of them infact and they look quite new and healthy and not too loose or tight. I thought that maybe the belt was squeaking under pressure, or could this be the supercharger clutch slipping?
Hi Alt,
I have had 6 KAD32's in various boats all of which have needed belt's tweeking but i would say if the noise is on off all the time then change the clutch assembly complete (not to bigger cost 65 approx) Just a thought the charger does make a phut noise when it go's off boost @ 1500rpm ish but that is the norm or has been with all of mine. Also make sure you dont have any air leak's on the supercharger as that could also be a problem. It is always a good idea to carry spare belts & a complete clutch kit if you use the boat on any long distance trips as 'can go wrong will go wrong' applys but if you buy the gear it probably wont that's my expirence.
Regards Mike.
__________________
Mike...

The Titanic was built by professionals - The Ark was built by one man!
www.aqua-care.co.uk
Spike is offline   Reply With Quote
Old 09 April 2007, 18:19   #5
alt
Member
 
Country: Ireland
Town: Galway, West Eire
Make: Cranchi
Length: 5m +
Engine: 2 x Volvo KAD300
Join Date: May 2006
Posts: 644
Send a message via MSN to alt
Mike - My thoughts are to change all the belts and the clutch for peace of mind
__________________
alt is offline   Reply With Quote
Old 09 April 2007, 18:35   #6
Member
 
Country: UK - Scotland
Town: Isle of Skye
Boat name: Seafari - VHF CH 71
Make: Humbers+Catamaran
Length: 6m +
Engine: Volvo/Iveco/Suzuki
Join Date: Feb 2002
Posts: 196
ref to mikes answer - try replacing the clutch, i have had 5 KAD engines, and never come across this - as yet - but is worth a try, and is not to expensive as mike has had a few 32's then he will know.

belt i was referring to mind was the main drive belt, not the comp belt squeeking - when i got my 1st kad 44 i thought it was the cluth/bearing/alternator - all it was was the tension on the belt - they do tend to stretch, and have changed many that look fine, but are stretched, over time to their limit and need a new one-
You should be able to tell, by seeiing how close the tension pulley is to the actual 'flywheel' (not right word)
my sad test was that if you did not have enough room to get your 15mm ring spanner off, once you tensioned it up, then time to change....

Pete
__________________
seafariskye is offline   Reply With Quote
Old 15 April 2007, 17:34   #7
Member
 
Country: UK - England
Town: Dorset
Boat name: Pending
Make: Pending
Length: no boat
Join Date: Jan 2007
Posts: 198
Service kit

Quote:
Originally Posted by alt View Post
Mike - My thoughts are to change all the belts and the clutch for peace of mind
Hi Alt,
Volvo do a service kit complete for the KAD32 includes all belt filters ect but not the clutch, worth getting & carrying on board at all times. When i ran 2 KAD42 in a 40 footer for 18 months i carried one & it helped me out on lots of occasions (usually mid channel-middle of the night-rough) Supercharger belts used to go for a past time!(big boat for outdrives,14ton so a bit over stressed). Small box easy to store cant remember how much though.
Cheers Mike.
__________________
Mike...

The Titanic was built by professionals - The Ark was built by one man!
www.aqua-care.co.uk
Spike is offline   Reply With Quote
Old 15 April 2007, 19:10   #8
alt
Member
 
Country: Ireland
Town: Galway, West Eire
Make: Cranchi
Length: 5m +
Engine: 2 x Volvo KAD300
Join Date: May 2006
Posts: 644
Send a message via MSN to alt
Quote:
Originally Posted by Spike View Post
Hi Alt,
Volvo do a service kit complete for the KAD32 includes all belt filters ect but not the clutch, worth getting & carrying on board at all times. When i ran 2 KAD42 in a 40 footer for 18 months i carried one & it helped me out on lots of occasions (usually mid channel-middle of the night-rough) Supercharger belts used to go for a past time!(big boat for outdrives,14ton so a bit over stressed). Small box easy to store cant remember how much though.
Cheers Mike.
Hi Mike, thank's for the comment. I spotted a bit of black 'dust' on top of the engine today, I reckon a belt is on it's way out, so going to order a complete belt kit this week.
__________________
alt is offline   Reply With Quote
Old 17 April 2007, 18:00   #9
Member
 
Country: UK - England
Town: sheffield
Boat name: blue marlin
Make: avon 620 adventura
Length: 6m +
Engine: 150 hp suzuki
Join Date: Aug 2004
Posts: 146
re supercharger

i had a kad32 serviced by a main dealer Ex lesure(went bust last lear)
they forgot to check/replace the oil in the supercharger and it squealed and stoped working at high revs,
worth checking the access for the dipstick is a bolt on top of the charger. if you did not know its there youd miss it

just thought it would be worth checking
thanks
stephen
now gone back to a outboard as do a lot of beach launching.
__________________
stepheneyre is offline   Reply With Quote
Old 17 April 2007, 18:15   #10
alt
Member
 
Country: Ireland
Town: Galway, West Eire
Make: Cranchi
Length: 5m +
Engine: 2 x Volvo KAD300
Join Date: May 2006
Posts: 644
Send a message via MSN to alt
I changed the oil only 2 weeks ago but will check the levels next time im at the boat, thanks for the suggestion
__________________

__________________
alt is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 21:44.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.