RootesRooter
Donation Time
Scotty - Well, like you said, you've been paying more attention to the temp gauge until recently. Fresh results from Hartmandm's tests are needed to see if you've got a sticking PRV.
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Enjoy.
Dan.. Speak with Jartid and also Steve S... This was discussed a couple years back, iirc maybe jarrid had a first pass at it? @RootesRacer ??I'm tempted to try a Ball in place of the Piston.
DW
Series V with the brass oil pressure relief valve?
What oil pressure are you seeing just after starting when the engine is cold?
40-45
What oil pressure are you seeing shortly after starting when the engine drops to the usual idle speed (at or less than 1k rpms)?
Stays at 40 when warmed up and at rest and drops and stays at 25 after driving it for a mile, mile and a half.
What oil pressure are you seeing when the engine is normal temperature (85C) at idle?
Will lower to 25 and fluctuate between 25 and 30 after driving and then parking and let idle.
What oil pressure are you seeing when the engine is normal temperature at 2k rpms or greater?
So far it’s stayed at 25. It wasn’t a long trip, 2 miles total. Temp stayed at 190. Running 15-40 in her if that makes any difference with straight 30W in the all synchro trans.
Mike
Sorry this took awhile. I took it on a long drive.
Scotty,
sV with 1725 came standard with an oil cooler. You realize that Rootes wouldn't have installed an oil cooler system if they thought it was unnecessary.
This brings up a topic we discussed years ago. I think when @RootesRacer (iirc) adapted a ford oil to water cooler base.
Jarrid had done some research into oil temps and implication for the psi and degradation.. Iirc " the 1725 really hammers the oil"
What is interesting is they fitted the coolers to the alloy head " series" alpine 1725 .. The fastback alpine alloy head used an allpy sump instead.. Yet the alloy head 1725 in scepters, gazelle and similar saloon cars didnt have coolers or alloy sumps..
Always found that strange. Maybe tbey edpectes the sporty models to get driven harder?
This brings up a topic we discussed years ago. I think when @RootesRacer (iirc) adapted a ford oil to water cooler base.
Jarrid had done some research into oil temps and implication for the psi and degradation.. Iirc " the 1725 really hammers the oil"
What is interesting is they fitted the coolers to the alloy head " series" alpine 1725 .. The fastback alpine alloy head used an allpy sump instead.. Yet the alloy head 1725 in scepters, gazelle and similar saloon cars didnt have coolers or alloy sumps..
Always found that strange. Maybe tbey edpectes the sporty models to get driven harder?
This brings up a topic we discussed years ago. I think when @RootesRacer (iirc) adapted a ford oil to water cooler base.
Jarrid had done some research into oil temps and implication for the psi and degradation.. Iirc " the 1725 really hammers the oil"
What is interesting is they fitted the coolers to the alloy head " series" alpine 1725 .. The fastback alpine alloy head used an allpy sump instead.. Yet the alloy head 1725 in scepters, gazelle and similar saloon cars didnt have coolers or alloy sumps..
Always found that strange. Maybe tbey edpectes the sporty models to get driven harder?
We run a thermostatically controlled oil cooler on our Alpine. It opens only when the oil is hot. Tim R
Tim, I have a couple questions about the thermostatically controlled oil cooler. I assume that on a 1725 one can easily remover the original oil copper adapter that is under the filter attachment and simply remount the original filter mount directly onto the block. Is that true? If so that means:
1) Scotty, the original poster, should be able to find and install the original factory oil cooler adapter (and then find an original cooler and find a way to mount it.)
2) Also, it means one could remove the original cooler adapter on a 1725 engine (as noted above) and instead install the new thermostatically controlled one on top of the filter mount and maybe connect the original cooler hose to the new adapter. Do you know if the original hose connectors will mate to the threads of the new adapter?
Thanks, Tom
Tim, I have a couple questions about the thermostatically controlled oil cooler. I assume that on a 1725 one can easily remover the original oil cooler adapter that is under the filter attachment and simply remount the original filter mount directly onto the block. Is that true? Yes the cooler adapter is easily removable.
If so that means:
1) Scotty, the original poster, should be able to find and install the original factory oil cooler adapter (and then find an original cooler and find a way to mount it.) Yes, that might be the simplest.
2) Also, it means one could remove the original cooler adapter on a 1725 engine (as noted above) and instead install the new thermostatically controlled one on top of the filter mount and maybe connect the original cooler hose to the new adapter. If the new adapter is ordered with the matching fittings, several types are offered. Do you know if the original hose connectors will mate to the threads of the new adapter?
Thanks, Tom