New Spec. Timing Chain Tensioners.

[Staghound]

Having purchased a full, new set of timing chains and all the accompanying parts I find the chain guides don't fit straight (had to modify them to fit) and the Tensioners don't have an oil hole through the center of them like the old ones do...do I drill a hole in it to allow oil thro' or leave it? Have any of you fine folk had these difficulties or have I bought a poor quality kit...

Thanks, Andrew.

[Goldstar]

Andrew, Edds Project thread had something on this I think 3-4 (maybe a few more) pages back IIRC

[dasadrew]

Try this for size:

http://www.stag.org.uk/forum/showthread.php?16144-Chain-Tensioners-a-couple-of-questions&p=169719&highlight=tensioner#post169719

Especially post 7.

Drew

[edd]

Hi Andrew , yes i looked into this and found lots of information but no complete answer. i slightly enlarged the hole as in my opinion the very slightest element would block the oil feed rendering it usless, my first thought was to go much bigger on size but in the end only went a couple of sizes up. Also ensure the dowel sits true with the plate on the bank near the engine. i like the idea of the feed going through the pad but after watching the you tube clip it seems to work fine. if you need any more pictures i can dig them out and post
Edd

[Staghound]

Thank you gents for those replies, I am of the opinion, the more oil, the better...

Regards,

Andrew.

[dasadrew]

Or... the bigger the hole, the less the pressure and coverage.

[edd]

This is the problem no real answer,i see it as the oil passage leads to a tapered slot that forces the oil behind the piston , perhapes to give it deadening properties also like a dampener even though the spring is tensioned high also , the clearance of the piston is small so basically the pressure will be built up by the resistance of the cavity within the actuall tensioner not the really tiny hole. i still have a tiny hole it,s just bigger than was drill in the rolon one ie not even drill through. When you think the big end has a great big hole in it but the bearing then stops the pressure just falling off in the same way the piston on the tensioner is acting the same way.
Edd

[edd]

I also think if the hoke was originally in the foot of the pad this would require pressure so maybe now the foot is closed it results in more pressure than before as we now have no clear passage we have interference.
Now I must get on with rendering this house in the rain lucky me ehh
Edd

[V Mad]

This is the problem no real answer,..........
Edd

Universal problem with forums; sorting the wheat from the chaff. There are some very experienced people on here; trust them.

[edd]

Universal problem with forums; sorting the wheat from the chaff. There are some very experienced people on here; trust them.

Ok Chris I class myself as experienced so hopefully people listen to me too I find common sense is a very handy tool, all we do on here is put out our version and its up to individuals to make there mind up. Sometimes there are two ways of doing a task and both a right
Edd

[edd]

ok i wanted to show what my tensioners looks like now . I think having the hole in the heel of the tensioner moved to the tiny hole on the side meant we now have two tiny holes . My thinking is if the tiny hole in the block of the tensioner get blocked your chains are running dry hence i enlarged it but very slightly as the picture shows. As you can see the exit hole is still the same size.If this hole gets blocked then oil will still seep from the piston down onto the chain therefor still lubricating the chain.
Like many threads on here i,m so suprised at no definative answers after all these years. It comes across as guess work. So can anyone gaurantee this really tiny hole will never be blocked as every engine has tiny ammounts of silt floating about.
I am trying to find answers myself and thus helping others along the way and seeing as one has blocked before the oil hole is a thing to think about this is why marshman did his test you have watched .
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Join Date:Mar 2009
Location:Romney Marsh, Kent. 1971 White BW35 TV8, , United Kingdom
Posts:824 Originally Posted by alan_thomas
marshman,

My observation with the later type of tensioner with the oil hole on the side is the oil flow is very good - my only concern is the very small size of the feed hole which can block easily - this had in fact happened to one of mine. I did try to drill the hole out to make it bigger but the steel is hardened so my drills wouldn't touch it and I don't have access to a spark eroder so I left it as it was.

Roger

Anyway this is mine ,
Edd IMG_2747.jpgIMG_2749.jpg

[V Mad]

Ok Chris I class myself as experienced so hopefully people listen to me too I find common sense is a very handy tool, all we do on here is put out our version and its up to individuals to make there mind up. Sometimes there are two ways of doing a task and both a right
Edd

Sorry Edd, I wasn't suggesting you were inexperienced. But since you were asking I assume you were not sure on this particular aspect.

Also I have been caught out so many times by common sense though so I am wary of that.

There are many topics that continue to be controversial, and we never seem to get 'the answer'. Maybe thats what makes it all so irresistable eh?

[edd]

Sorry Edd, I wasn't suggesting you were inexperienced. But since you were asking I assume you were not sure on this particular aspect.

Also I have been caught out so many times by common sense though so I am wary of that.

There are many topics that continue to be controversial, and we never seem to get 'the answer'. Maybe thats what makes it all so irresistable eh?

I totally agree Chris and i have been helped by just about everyone on here , only a couple of days ago i thanked Niel flying farmer for a great timing cover tip .
If things were simple they would be boring and a stag is never simple but i do love a challenge
Edd

[Staghound]

I have just seen the titchy hole on the under side of the plunger...oil really comes thro' that???

Andrew.

[dasadrew]

I have just seen the titchy hole on the under side of the plunger...oil really comes thro' that???

Andrew.

Did you actually read the link I posted and watch the Youtube film of the lubrication with the later type of tensioner foot?