[MR2] MKII Cooling System Pressure Tester

[Kurt Krueger]

On 2/3/2012 12:59 PM, bsdavies at q.com wrote:
> I got one from Checker Auto, it was a loaner I decided to keep. Didnt have the adapter for the MR2 though so I improvised by connecting it to the tube that leads to the overflow bottle. Works fine this way as long as cap holds pressure (tests the cap at the same time!)
> Any thoughts as to why I shouldnt do this and go and find the right adapter?
> cheers
> Barry
When I had a leakage problem I pressurized the system with a bicycle 
pump through the heater bleed.    Had the advantage likewise of testing 
the cap and pressurizing the system to the actual running pressure 
(which was necessary, since it only leaked under pressure).

Short answer:  I see no reason why your solution isn't an excellent 
solution.

I also bought one of the Harbor Freight testers.  It's still shrink 
wrapped so I can't say if it has the right MR2 adapter.  It was on sale 
cheap enough that I bought in preparation for the next time I have a 
cooling system problem.