Timing chain tensioners

[minormonkey]

A rare picture of where the Morris Minor chain tensioners go...just saying.[frame][/frame]

[bmcecosse]

These rubber ring tensioners are useless... Far far better to convert to the Mini system with a proper tensioner. It IS the route to chain silence.....

[philthehill]

This is the list of parts you will need to convert:
Pad tensioner.................12G2621
Pin tensioner..................12G2629
Screw...........................SH605061
Locker washer.................LWZ305
Washer plain...................PWZ105
Gear.............................12G4337
Chain timing...................3H2127
Cover timing chain...........CAM4641 / CAM4904.
Oil seal.........................88G561
Gasket timing cover.........GUG705550GM

You will have to drill a hole in the engine front plate to accommodate the head of the pin Pt No 12G2629 though some have used a different arrangement to hold the pin place (various posts regarding the alternatives can be found on this site) but drilling the hole is in my opinion the best solution. All can be done without removing the front engine plate if care is taken not to allow swarf/drill cuttings to fall into the sump. Use of a high powered vac to pick up the bits as they appear is a good idea.
The covers are usually for sale on 'e' Bay for between £12/£20 pound.
I personally have gone the whole hog and fitted a duplex set up with the tensioner set up as well.
All the above are available from the usual Mini parts suppliers.

[bmcecosse]

The holes are all there - except for a blind hole to take the rivet head - and someone (sorry - can't remember now who it was) came up with clever way to do without even the rivet-head hole.

[minormonkey]

So i bought a single chain kit with rubber tensioners and it all went back together smoothly and runs nice and quiet.
Happy days

[bmcecosse]

Not for long....

[minormonkey]

Lifes like a box o' chocolates,you never know what you're gonna get.

[bmcecosse]

You can learn from others with more experience ..... But -each to their own....

[minormonkey]

I had to fix the car for the coming weekend so a like for like replacement was the easier option.
I posted the picture above as i couldnt find an image of the tensioners so thought it helpful to others,no other reason.

Thankyou both for your advice.

[bmcecosse]

If driven gently they will last for many thousands of miles.

[dalgrae]

As said in the posts on this subject above I recently fitted a tensioner kit to my car the timing cover took some finding also I was told that the pin is no longer made so I machined my own , it is also a lot easier to check the timing on the tensioner cover than the old version

[philthehill]

The pin Pt No: 12G2629 is still available from Somerford Mini Ltd @ £5.39 inc VAT and from Mini Spares @ £3.90 inc VAT.
The complete single chain with tensioner kit which includes:- tensioner plate/tensioner pad/pivot pin/timing chain/cover gasket/oil and crank shaft seal is available from Mini Spares Pt No: MSSK051 @ £18.32 inc VAT
So there is no need to make your own pin unless you have the time and inclination
Someone must have bought all the S/H timing covers as currently non for sale on 'e' bay.
All variants of the timing cover are available from Somerford Mini Ltd and Mini Spares but they are not cheap so it may be better to wait for one to come up on 'e' bay.

[Declan_Burns]

You reverse the pin after drilling a 4mm hole in the end of it and countersink the hole on the retaining bracket-see photos.
Regards
Declan[frame][/frame]
File flush
[frame][/frame]
Redundant hole[frame][/frame]

[philthehill]

Declan
I am surprised that you have a redundant hole as it allows the possibility of oil seepage.
Not sure what block you have but on my conversion (1275cc Marina block) there is room at the back of the front engine plate to fit a nut/washer to a bolt through the timing cover/gasket and front engine plate.

[Declan_Burns]

Phil,
It's a 1098 block. We did the same conversion on my mate's car about three weeks ago and it was the same with the redundant hole-hence plenty of sealant which is easily wiped away afterwards. There have been no leaks.
Regards
Declan

You can see it better here:[frame][/frame]

[philthehill]

Declan
Thanks for your reply but if there was room for a bolt nut and washer I would certainly fit them even if the likelihood of an oil weep was extremely low without them.