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Coolant Line Sizes

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Coolant Line Sizes
#1
  This topic is about my 1978 Triumph Spitfire 1500
GriffinNC Dennis D
Greenville, SC, USA   USA
I'm working on replacing all the coolants lines and could use a sanity check on the dimensions before I run to the FLAPS to find some.

Heater lines - I'm looking at 1/2' in most locations.
Manifold lines - It seems closer to 5/8" running from the thermostat housing to the manifold and then out the manifold to the t-pipe looks like it's 5/8" on one end and 1/2" on the other. Am I wrong?
Water Choke - The line around the water choke seem a bit smaller. 3/8" or 7/16" maybe. Thoughts on this size.

I know I tried to put a 15/32 spare hose on the thermostat housing and wouldn't fit with no amount of persuasion....

Thanks

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Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, NV, USA   USA
That 5/8 to 1/2 transition hose can be stretched with old school battery post pliers.

GriffinNC Dennis D
Greenville, SC, USA   USA
Do those seem to be the right sizes? They are so old and stretched it’s hard to really judge them anymore.

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Herald948 Avatar
Herald948 Andrew Mace
East Nassau, upstate NY, USA   USA
Keep in mind that typical "basic" heater hose might kink if the bends are too sharp, as opposed to a preformed hose that would hold shape.



http://www.fairpoint.net/~herald948/database/

Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, NV, USA   USA
An old trick is to use springs (like screen door spring) inside the hose to prevent the walls from collapsing.

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