Read the "400 love my Lagoon" thread for a few pointers.
How long things last on a 400 depends on how the boat is used. If the boat has crossed a couple of oceans or otherwise has put lots of miles under keels, look out for mechanical wear on steering cables
bearings, boom gooseneck, rigging
(particularly where rigging crosses). Sails
will also have wear, UV damage to stitching as well as stretch, particularly the furling genoa
. Look for stretch along leech. Running rigging will show wear.
If the boat has been used as a marina ornament, or more correctly, not used, then most of the issues listed above will be OK. However, you may find that when you actually use the boat that all sorts of things go wrong. Fuel
blockages from diesel
gunk, electronic breakdowns, pump impellers self destructing, etc.
So IMHO, the best boat is always one that has been regularly used, but not abused.
Obviously get a survey
and check the "big items" such as hull
in saildrives, engine
Other "problem areas" of L400s that should be checked out are; clutch
function if SD50 Yanmar
gearboxes are fitted; water
damage from fridge condensate to bottom of ply panel on end of bench, beside saloon
entry; rotten ply base of water tanks
; wet bilges that can't stay dry; galley
bench tops, especially around sink cut outs; deterioration and separation of sealant
in various places, particularly at deck
joins below cabin
windows; battery storage
capability may be waning as they age and finally, flickering LED lights
Many of these issues are not deal breakers and can be fixed, but go in with your eyes open and try to keep your budget
on track. The L400 is a fine boat, it is well designed as a safe, sea kindly live aboard cat that has the ability to carry heaps of gear
and do it in comfort. It sails well enough as a cruiser and is as spacious as many 50 footers of other cat designs. Don't let my list of issues to check out in any way be construed as a put down of the make or model. Many other cats that I looked had more or worse issues. Good luck.