Morris Minor 1098 Duplex Timing Chain

Installing a duplex timing chain on the 1098 engine which will be going in my Morris Minor.
Thanks to the helpful folks on these Morris Minor forums for their help!
www.morrismino...
www.morrismino...
Thanks also to Wayne for a great description of camshaft endfloat woes;
waynesminiprogr...

[@davidanderson8407]

Every body needs a Ken!!!!Another cracking and informative video Tim.

[@goingundersground]

Thanks David

[@seanpollard5254]

Hi Tim lovely the attention to detail very precise I am just about at the same point great video 👍

[@goingundersground]

Thanks Sean. Fitting a new core plug now and cleaning up the cylinder head. Getting there! Good luck with yours.

[@ramseywrinkles2485]

Hi mate great vid! Just a quick question, I also have changed my moggy to a duplex chain, I put the cover and crankshaft pulley back on after I was finished and decided to start it up for a bit to see how it was running without the coolant etc, after about 3 mins of running I turned it off but noticed white smoke coming from the top coolant inlet, if you have any answer for this I’d love to here it!

[@ramseywrinkles2485]

To add to that the exhaust manifold is a little bit hot aswell so could be that I was just running it for too long?

[@georgeyboyhowe1685]

need aaduplex for all that power lol the single chain lasted 40 years why duplex

[@montyzumazoom1337]

Interesting Tim. So why a duplex chain? The engines were made with a single timing chain as standard and to be honest they should last a very long time. I just wonder what benefit a duplex chain would provide. The kit cost was pretty reasonable and the single chain kit is only a couple of pounds or so cheaper. What was your reasoning to get a duplex one?

[@goingundersground]

Hi Monty - it really came down to recommendations from others; if you are going to change it anyway and the cost is not much different then why not fit one? Apparently the duplex one is less likely to stretch. At the end of the say there's probably not much in it, especially if the car is not going to be driven hard, which I can't imagine mine will be!

[@alanalmo5834]

The A series engine was good, but built to a budget. Oil leaks due to poor oil seals and... no tensioner on the timing chain which would be more effective than an untensioned duplex one IMHO.

[@prawny12009]

What diameter is the crank where the sprocket fits?

[@seanpollard5254]

Hello Tim just as a matter of interest what toque setting did you tighten your camshaft nut up . As nothing mentioned in the Haynes manual about it it has a locking tab so maybe just tight hope all going well with the engine 👍

[@goingundersground]

You are correct there is no setting given, so I used 60 lb ft. I found that in an MGB forum and guessed that a B series engine would be similar to the A series.

[@seanpollard5254]

@@goingundersground hi Tim thank you for your reply I’ll do the same. Look forward to your updates happy engine building 👍

[@charliechristianson]

just bought a 1960, the engine is in a 100 pieces. i am going to need you lol

[@goingundersground]

Let me know how I can help! I'm no expert though...

[@charliechristianson]

@@goingundersground hi tim, i bought it 3 weeks ago from the old guy across the street. it has sat there for 10 yrs it would not turn over. he gave it to his friend. that didnt end well. the body is in mint shape tires are cracked. its 20 below and 2ft of snow. i have all winter to learn and yr show looks the best for learning, come spring i will let you know tx

[@thor4318]

How do you get the nut off to get the timing chain off is there a special tool I have a Morris pickup and me and my dad are stuck at the nut we can’t get it off please if anyone can reply it would be appreciated

[@goingundersground]

I just used a big socket and leverage - I recall that I 'locked' the crankshaft with a long bar.

[@petepip]

Another job ticked off the list 👌

[@goingundersground]

Getting there...slowly