Timing chain tensioners again. A question.

[Sundowner]

Hi,
Sorry to bring up the subject yet again, but.....
I need your input here please.
On the advice of several folk on this forum I bought a genuine Jaguar tensioner to replace the defective Rolon rubbish I recently installed in my Sprint.
Now, all the holes line up nicely, the rubber pad's ramp is the same profile and it looks like it'll just bolt up fine. I am however, concerned about the size of the oil inlet hole in the side of the thing.
The Rolon has a pinhole size inlet, but the Jaguar item is a huge 8mm in comparison.
Will this cause me a problem? Lower oil pressure, or will the extra oil capacity of the item be an advantage.
Cheers,
Rob

[Sundowner]

FYI.
Like the French made Renold I was trying to buy, this genuine Jaguar one is also made in France.
Cheers,
Rob

[tony g]

Ultimately the smallest hole is the biggest restriction so in the block face that the tensioner bolts to,that hole will be all it can give. A larger hole after that (in the tensioner body in this case) wont lose or create any pressure. The extra volume in the tensioner may simply add a "puddle) in there to keep a good supply of lube to leach out when pressure is low.

HTH

Tony

[Sundowner]

Beauty!
Thanks Tony.

[trackerjack]

Yes the only thing I would add.
Check the back plate to ensure the oil gets to that hole, as one plate that I have seen had no hole!

Its probably a good idea to run the car for a few thousand miles to generate those shallow chain grooves and then take the timing cover off and reset the tensioner so its not out too far.
I hasten to add this is just my idea and I can be wrong but I did it on my Stag and despite doing hillclimbs, sprints and track days I never had any engine problems. (I was younger then and drove like I stole it )