Funny you should say that...morgan wrote: ↑Tue Jul 16, 19 3:58 pm
....So within 6 mins she is at 220. TOOO hot. I am just about to get her moving to drive some cool when smoke starts to billow out. Uh-oh.
Pop bonnet - but - get this - it AINT the car - its the power steering pump. Fluid is boiling out from under the cap and this is the smoke.
So I still dont know what temp car will boil - but I do know there is a new problem I have not seen before...
So chaps - I throw it out there - boiling power steering pump ?
Edit - adjustment still possibility...( https://board.moparts.org/ubbthreads/ub ... iling.html)
When we were on the way back from American Speedfest last month, the only heavy traffic we got stuck in was joining the M25 at the last junction before the tunnel and after about 15 mins of not going very far, with the in-dash temp gauge getting ever closer to the right hand side, I noticed the steering was feeling very 'notchy' as i steered slowly to change lanes.
At the time i thought it felt like it did a few years ago when our power steering emptied itself, due to a leaking o-ring (or to be precise, an incorrect o-ring fitted by the people we got to rebuild it). Thankfully, this was only a short distance before joining the M25 and after picking up speed and the temp getting back to normal, the steering felt ok. I don't remember any smoke tho, like you had.
I checked the p/s level when we got home and it was still normal, so hadn't leaked. so I did think the high temps underhood had affected the p/s fluid.
The only plan we have at present to prevent this in the future is to improve the engine cooling which should help to reduce the overall under-hood temps (which can get unbearably high). I've just bought a Flowkooler water pump which we'll fit within the next few weeks. The shroud we've got could fit better (there's gaps where it fits around the rad so isn't as efficient as it should be) so we'll replace that if we can find a better one.
Cos we've got a 22" rad - which is deeper than a 26" - we can't fit a clutch fan in there. And as we're trying to stay 'stock appearing' I'd rather not have to fit an electric fan. So we're hoping the uprated water pump will help!
There is another tip we've been told might help tho - from Scott Koffel who built the engine:
"If you want to improve cooling, take the water neck off the housing, there is a big drilled bypass hole in the housing. If you tap that 1/4 npt and put a plug with a .125 drilled hole in it will help cooling."
I've read about this on other forums but we'll see if the new water pump helps first.