How difficult could it be!!!!!!

I have got my 1974 r90s up on the ramp to do a bit of tidying and recommission work and yesterday I took the front cover off the engine to change the points . I just happened to touch the tachometer cable and it separated from its housing . So I thought I would be able to remove the housing with a pair of pliers and then remove the helical gear and the metal sleeve and oil seal .So I remove the timing cover yesterday evening to try and sort the situation. Silly me !!!

I soaked it in WD-40 overnight and with some heat I managed to remove the aluminium cable cover this morning However try as I might I could not remove the sleeve to get to the inner oil seal . In the end I thought it was better to try and save camshaft drive gear itself and the sleeve and to forfeit the cover. Very sad time !!
I managed to cut a sleeve out relatively easily using my Dremel and little grinding disc but the oil seal proved very difficult i was clearly bonded with corrosion. In its previous life there must have been problems in this area as there is an 8-mm chip on the end of one of the spiral teeth and the spacing washer is missing.

So I'm now in the hunt for a new timing cover and was wondering if any members might consider selling one to help me out. And will be 8 mm chip at the end of one of the spoil teeth be a problem or not what. Also how thick is that missing washer? Thanks guys

mikeyboy said:

https://www.motorworks.co.uk/vlive/Shop/Parts.php?T=5&NU=10&M=20&Ct=BA&SbCt=BA_10_20_BA_60

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Thanks

Don't waste your time soaking things in WD40 use Plus Gas.....far far better

Byron, I have one you might like. Really good condition, if not new. As ever, cheaper than MW!! Give me a shout?

Gelandestrasse said:

Byron, I have one you might like. Really good condition, if not new. As ever, cheaper than MW!! Give me a shout?

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You are such a gent Tim , I will Text you .

Unfortunately Tim's timing cover was not for the smaller diameter cam shaft, so still on the hunt for one .

Spot the difference

Apart from the damage, spot the difference between the pre-09/75 and the post-

Gelandestrasse said:

Apart from the damage, spot the difference between the pre-09/75 and the post-

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dunno give up . please tell me before bedtime or I won't sleep

peepingtom said:

dunno give up . please tell me before bedtime or I won't sleep

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Size of the camshaft seal opening....I also have dAmage on the helical Baer for the Rev counter, should I try and replace it? But how do you remove it and it doesn’t make any noise......


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chasbmw said:

Size of the camshaft seal opening....I also have dAmage on the helical Baer for the Rev counter, should I try and replace it? But how do you remove it and it doesn’t make any noise......


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If it works still, don't mess with it!!

PS. you were right about the camshaft hole size!!

And on the early bikes the casting for the alternator location is 105mm not 107mm