O ring replacement on hymer655 rooflight (1 Viewer)

gwyntaxi

LIFE MEMBER
Jun 9, 2009
1,138
1,032
,Swansea
Funster No
7,041
MH
hymer starline 655
Exp
42yearscaravanning&motorhoming
I think i need to replace the O ring on the winder of the large roof light on my Hymer655, it tends to drip slightly in torrential rain when the van is level, Has any funsters changed this O ring and how difficult/easy is it to access please.
 
Feb 22, 2011
9,126
17,797
Newcastle under Lyme
Funster No
15,397
MH
Hymer B544 A Class
Exp
Since 2015
I have the same problem but putting up with it for now as all I do if rain is predicted is make sure I'm not perfectly level and that solves the problem.
There have been threads before on this if you do a search.
I think there was a solution described but I can't remember what it was now :rofl:
 
Feb 24, 2013
12,769
99,515
Bolsover, Derbyshire
Funster No
24,833
MH
Hymer S800
Exp
not long enough
I also have the issue and don’t think there is an o ring

What a stupid design it is though 🤔🤬 I have bought a new winder mechanism as ours got really stiff, now resolved that with silicon spray 👍

This is what you are dealing with, this spindle has its own hole through the roof and the bracket is screwed down to the roof

image.jpg


image.jpg


I am working on the leak being standing water overflowing the centre welded top of spindle then coming down to the winder. I have packed that area with Vaseline two weeks ago and am waiting for enough rain to see if that fixes it

Much more likely I fear is that water is getting under the bracket then finding the easiest way out, the spindle / handle being the lowest point. To access that the roof light has got to be removed, just the plastic top bit, then hoping all the screws holding the bracket come out it can then be cleaned and resealed

There are 8 screws in total

image.jpg

Subscribers  do not see these advertisements

 
Aug 25, 2016
1,047
5,275
Taynuilt, UK
Funster No
44,797
MH
Hymer 655 Starline
Exp
Village idiot
On my 655 starline. I thought the same but in the end I took it off the van cleaned up well and reapplied good mastic. Sorted my leak and with the mechanical parts all cleaned and lubed up all is well.
So your better doing the above 👆 it will sort it out. 👍🌟🥃

Subscribers  do not see these advertisements

 
Dec 17, 2016
927
931
Malvern
Funster No
46,488
MH
Hymer B525 2006 A cl
Exp
2012
The vertical spindle withe the cog at the top does have an O ring in it but it's only coming in that way if overflowing as Figaro said. When mine went I took the whole mechanism out and cleaned an greased the spindle but the O ring was fine. I also resealed the metal frame on the roof.
It's been fine since
 
Feb 22, 2008
12,181
44,263
Norfolk
Funster No
1,575
MH
Hymer B544
Exp
Since 2004
A shame that these vans are built with a perfectly flat roof which if the van is parked level water can pool and find weak seals.
The American RVs I had all had a slight side to side convex to the roof which made pooling of water impossible.
 
Feb 24, 2013
12,769
99,515
Bolsover, Derbyshire
Funster No
24,833
MH
Hymer S800
Exp
not long enough
When mine went I took the whole mechanism out and cleaned an greased the spindle but the O ring was fine. I also resealed the metal frame on the roof.

Update on my leak, post Vaseline addition 🤔 , light rain minimal pooling, still had several drops off handle

Now going to get mechanism off and resealed , although it might still be leaking round the skylight. Job is above my abilities so am considering booking into a new facility my daughter found locally

Www.habcheck.co.uk she was very pleased with their premises and customer support, look to be a franchise set up so may vary across the country

Definitely not doing it myself 🤔👍

Subscribers  do not see these advertisements

 
Nov 21, 2017
23
9
Kent
Funster No
51,431
MH
A Class
I had a leak last autumn & assumed the water was getting in between the frame & roof then down the spindle tube. I ran mastic right across the front of the frame which has been watertight since. Proper repair in better weather.
 
Nov 13, 2011
1,452
3,301
Lincolnshire
Funster No
18,889
MH
PVC
Exp
30 years
Wait until the leak is apparent, then using tissues dry the area and look carefully at where the leak is coming from.
If it is from the spindle and the outer casing is dry, then it is coming down the shaft.
If it is wet around the outer casing, then it is leaking from poor sealing of the assembly.

Geoff
 
Apr 27, 2008
11,703
13,629
Eastbourne East Sussex
Funster No
2,327
MH
Hymer low profile
Exp
Since 1972
Mine only seems to do it if the vent is open even if only a whisker. Mechanism is stiff so silicone sprayed and it seems to have freed up a bit. Next step is to liberally splurge silicone grease over the plastic gear.

Subscribers  do not see these advertisements

 
Feb 24, 2013
12,769
99,515
Bolsover, Derbyshire
Funster No
24,833
MH
Hymer S800
Exp
not long enough
Wait until the leak is apparent, then using tissues dry the area and look carefully at where the leak is coming from.
If it is from the spindle and the outer casing is dry, then it is coming down the shaft.
If it is wet around the outer casing, then it is leaking from poor sealing of the assembly.

Geoff
Sadly the underside is all covered in a plastic and wood frame with built in lighting. I am sure there must be a way to remove this , but way too risky for me 🤔🙄

Even getting access to reseal needs the plastic cover removing as the skylight rises horizontally rather than lifting at one end as most seem to do
 

Join us or log in to post a reply.

To join in you must be a member of MotorhomeFun

Join MotorhomeFun

Join us, it quick and easy!

Log in

Already a member? Log in here.

Latest journal entries

Funsters who are viewing this thread

Back
Top