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Old 12-01-2019, 12:22 PM   #24
pheengurs
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Join Date: Jul 2006
Location: Calgary, Alberta, Canada
Posts: 134
Re: 5/8" heater core hose blowing off!!!

Quote:
Originally Posted by luvbowties View Post
Thanks for showing us what you did. Looks quite nice! BUT, did it solve your hose-blowing dilemna? Appreciate your following up.

Sam

... fyi for posterity ...

anyway, in answer to your question Sam, in a word yes. But actually the solution, I posted much earlier in this thread.

when I was breaking in the new engine it was without a thermostat. When I put the back thermostat in, no more hose issues.

so three things to note as to why I had the hose problems... ok well four, well actually five, that made the perfect set of conditions to have hoses blasting off:

1: my ignition timing was retarded during initial engine break-in period
2: my spark plugs were of the wrong type and heat range
3: my water pump pulley is under-driven, added a little extra pressure
4: adapter fittings on those flex hoses are not fool proof like a normal hose
5: I was not running a thermostat during the initial engine break-in period


so 4/5ths fault on my rookie mistakes, 1/5th fault on those flex hoses...
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