Search for "8 point" sockets.
eg. http://www.uktools.com/index.php?cPath=147_1381
It is close to 3/4" so you might be able to adapt standard 3/4" socket
set parts. eg.
http://www.justoffbase.co.uk/Adaptor-1-2Sq-Drive-Female-to-3-8Sq-Drive-Male-Sealey-S12F-38M
Insufficient grip, reach or leverage. The plug is very tight (immovable so
far).
--
Duncan Heenan
>"Goofball_star_dot_etal" <w...@needs.email.anyhow> wrote in message
>news:1shfr4dnkffi23jkm...@4ax.com...
>> On Sat, 28 Feb 2009 20:57:06 -0000, "Duncan Heenan"
>> <duncan...@tiscali.co.uk> wrote:
>>
>>>I have a Volvo 2030 in my Bavaria 34, and want to drain the fresh
>>>water/coolant to change it. However the engine block doesn't have the
>>>drain
>>>cock on it which is shown in the manuals, instead it has a square ended
>>>blanking plug, which is almost inaccessible, and seems to be an18 mm
>>>raised
>>>square external end, for which tools do not seem to exist (it needs a
>>>fairly
>>>short box spanner to get at it). Does anyone know of a solution?
>>
>> Use pliers.
>
>Insufficient grip, reach or leverage. The plug is very tight (immovable so
>far).
I use my teeth, but it is not for everyone.
Perhaps you missed my previous post..
http://groups.google.co.uk/groups/search?as_umsgid=ip7lq41crd62d349t...@4ax.com&hl=en&ie=UTF-8
19mm. or 3/4" should be ok for 18mm. square, provided you can avoid
tilting it.
http://www.uktools.com/product_info.php?cPath=147_1381&products_id=8907&osCsid=b5a973b2b74a188155c4678f513224d9
At last I got around to doing this job, and your advice worked, so you
are Man of the Month!
I used an 19mm 8 point (1/2" drive) socket (a 16 point would not do
it, so be warned!), bought from your website reference (a very good
firm for tooling). I had to use a torque wrench with an 18" handle to
shift it as it was so tight, but it came out OK in the end. It needed
a 6" extension bar to reach the plug head, and some courage to apply
the force needed as it felt as if something was sure to break.
I ordered a proper drain cock fitting from the local Volvo Penta agent
(£9.89 - part no. VOP861 824), but when it came, it had a 13mm
diameter base, but the hole in the block was 26mm. So they ordered an
adapter for me (£6.32 part no VOP 3850290, which did the job. I can
now drain the coolant without flooding the bilge with the damned
stuff, using a thin rubber tube in the cock outlet, and no other
tooling needed.
Volvo are very naughty for supplying engines without the proper cock
on as shown in the manual, as it makes changing the coolant difficult
to the point where people don't do it. Still, with enough patience,
perseverence and money it can be altered as above. So take heart Volvo
MD2030 -D owners, all is not lost. If you are ordering parts though,
give the full engine details from the plate on the top of the engine,
as different marks of the 2030 have subtel differences which can be
important.
Regards
Bob
"Brownie" <duncan...@tiscali.co.uk> wrote in message
news:844e5681-21e0-4a3d...@v35g2000pro.googlegroups.com...