Volvo Heat Exchanger Housing leaking

[JAL51974]

This is on my AQ125A and is the hard plastic housing on the top of the heat exchanger. The old one had a crack in it so I picked up the same part no. on ebay. Easy to replace. But the base of the new (used part) does not mate up completely with the metal H/E so water leaks out.

Looks like I have two choices:
try to sand or grind the base of the housing to fit flush or find a permatex or some other sealing compound and seal up the joining surface.

What would you suggest?
What product can I use to seal the surface, which would be the easiest solution , I think.

thanks,

Joe

 

[captmello]

Re: Volvo Heat Exchanger Housing leaking

http://www.volvopentastore.com/Heat-Exchanger-With-Installation-Components-Aq125a/dm/*******.670351693--**********.721270531--store_id.366--view_id.325859

are you referring to #12? the strainer housing? I've only worked on one of those once but I recall it was an odd fitting part. Did you replace the seals with new?

 

[JAL51974]

Re: Volvo Heat Exchanger Housing leaking

Yes #12 and I did replace the seal. It is a tough fit too but the seal does not seem to work right and I get a steady stream from two places. I am thinking about using a Permatex product to create a good seal. Do you think that would work? Something that will seal plastic and aluminum?


I think the base of the plastic housing is warped, someone on another forum suggested this part might have come off an engine that overheated and warped. Could be since it was an ebay purchase.
Joe

 

[captmello]

Re: Volvo Heat Exchanger Housing leaking

Yes #12 and I did replace the seal. It is a tough fit too but the seal does not seem to work right and I get a steady stream from two places. I am thinking about using a Permatex product to create a good seal. Do you think that would work? Something that will seal plastic and aluminum?


I think the base of the plastic housing is warped, someone on another forum suggested this part might have come off an engine that overheated and warped. Could be since it was an ebay purchase.
Joe

I use permatex #3 aircraft gasket sealent on everything. If the part is warped than who knows. Might be worth try.

 

[JAL51974]

Re: Volvo Heat Exchanger Housing leaking

Thanks I will give #3 a try I have nothing to lose I guess.

Joe