Early Chimaera heater link pipe - is it necessary ?

[srdtvr]

Hi I'm just replacing some of the heater pipes on my 93 Chimaera and under the dash on the passenger side where the water pipes run to the shut off valve there's a "H" link pipe - does anyone know if I could leave this off and do away with 4 potentially leaky jubilee clips and just run the pipes direct?
Thanks
Steve

[Zener]

No because that is the thermostat bypass circuit and with the heater valve closed/cold setting, if you cap that you will boil up the motor due to no essential circulation near the stat circulation zero lots of localised boiling well in the cyl heads anyway

[Hedgehopper]

But later 500’s don’t have this fitting. I have always wondered if it might cause a problem with the heater closed but it doesn’t seem to.

[srdtvr]

Thanks I’ll wack it back in not worth taking a risk
Cheers guys

[Kitchski]

Hedgehopper said:

But later 500’s don’t have this fitting. I have always wondered if it might cause a problem with the heater closed but it doesn’t seem to.

The heater plumbing takes a totally different route on serp-engines.