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Home > Help Needed / General Tech Chat > BMW K Head Cam Followers / Buckets | |||||||
211 Posts Member #: 10890 Senior Member Twin Cam Turbo Build In Progress Rothwell, Northants |
20th Sep, 2018 at 09:23:56pm
Hi All I’ll be setting my valve clearance next week and I’ve just had my valve seats re cut so I’m expecting to have to get some thinner followers. Do any of you have any spare that you would like to swap? If not where’s the best place to get them from?
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4619 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
20th Sep, 2018 at 10:01:09pm
Motor works sell them. They're not cheap by the time you've bought a few though.
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211 Posts Member #: 10890 Senior Member Twin Cam Turbo Build In Progress Rothwell, Northants |
20th Sep, 2018 at 10:32:22pm
On 20th Sep, 2018 Turbo Phil said:
Motor works sell them. They're not cheap by the time you've bought a few though. Phil. |
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4300 Posts Member #: 1321 Post Whore Wiltshire |
21st Sep, 2018 at 06:55:08am
The other option is taking a slither off the top of the valve stems and use the buckets you have. On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding |
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211 Posts Member #: 10890 Senior Member Twin Cam Turbo Build In Progress Rothwell, Northants |
21st Sep, 2018 at 05:02:47pm
I’ll get it all set up and measured when the head gets returned to me next week 👍🏻 |
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6962 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
21st Sep, 2018 at 09:57:50pm
On 21st Sep, 2018 minimole23 said:
The other option is taking a slither off the top of the valve stems and use the buckets you have. |
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211 Posts Member #: 10890 Senior Member Twin Cam Turbo Build In Progress Rothwell, Northants |
23rd Sep, 2018 at 11:20:39am
I’ve just dug put my box of bits and checked my cam followers. I have :
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Forum Mod 10979 Posts Member #: 17 ***16*** SouthPark, Colorado |
23rd Sep, 2018 at 11:42:19pm
On 23rd Sep, 2018 wayne miller said:
I wonder how many will still fit after having the valve seats recut From my experience, None. Just accept that this is going to take a while to get right, but that it will be worth it! Personally, I numbered every valve, Lapped them in, then one at a time I installed them, measured the gap between the lobe and valve stem, then removed it, measured the overall length, and calculated what the new overall length needed to be that put me right in the middle of the range of buckets I had on hand... I took them back to the shop and had him grind the stems to the length needed per the measurements I supplied. I initially tried it just holding the valve in place, but would get small variances in my measurements, so I just put the spring force tgere knowing I would get consistent readings! Yes it’s a pain, but it is worth it! Before you do put them back in, It is with installing your camshafts and making sure they turn freely! My head had obviously shifted ever so slightly (somehow) when being welded and both cams were tight. I simply spent 30 mins with a sharp Stanley blade shaving the offending area away, until they turned with just light resistance. Edited by TurboDave16V on 23rd Sep, 2018. On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY |
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211 Posts Member #: 10890 Senior Member Twin Cam Turbo Build In Progress Rothwell, Northants |
24th Sep, 2018 at 12:19:41am
Cheers Dave,
On 23rd Sep, 2018 TurboDave16V said:
On 23rd Sep, 2018 wayne miller said:
I wonder how many will still fit after having the valve seats recut From my experience, None. Just accept that this is going to take a while to get right, but that it will be worth it! Personally, I numbered every valve, Lapped them in, then one at a time I installed them, measured the gap between the lobe and valve stem, then removed it, measured the overall length, and calculated what the new overall length needed to be that put me right in the middle of the range of buckets I had on hand... I took them back to the shop and had him grind the stems to the length needed per the measurements I supplied. I initially tried it just holding the valve in place, but would get small variances in my measurements, so I just put the spring force tgere knowing I would get consistent readings! Yes it’s a pain, but it is worth it! Before you do put them back in, It is with installing your camshafts and making sure they turn freely! My head had obviously shifted ever so slightly (somehow) when being welded and both cams were tight. I simply spent 30 mins with a sharp Stanley blade shaving the offending area away, until they turned with just light resistance. |
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11046 Posts Member #: 965 Post Whore Preston On The Brook |
28th Sep, 2018 at 09:40:28am
On 23rd Sep, 2018 wayne miller said:
I’ve just dug put my box of bits and checked my cam followers. I have : 5 x 2-70 4 x 2.75 4 x 2.80 3 x 2.85 I wonder how many will still fit after having the valve seats recut I’d hazard a guess that the valves had previously been re ground in another life, as most of the heads I’ve had have used 2.95’s, 2.90’s, and 2.85’s. With the work I’vee had done over the years, I’m now getting down to mostly 2.85’s, 2.80’s, and 2.75’s. The 2.70’s are hard to find used. On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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211 Posts Member #: 10890 Senior Member Twin Cam Turbo Build In Progress Rothwell, Northants |
28th Sep, 2018 at 01:12:38pm
I pick the head up from Santa Pod tomorrow so I'll have a look at things tomorrow/afternoon or Sunday.
On 28th Sep, 2018 Sprocket said:
I’d hazard a guess that the valves had previously been re ground in another life, as most of the heads I’ve had have used 2.95’s, 2.90’s, and 2.85’s. With the work I’vee had done over the years, I’m now getting down to mostly 2.85’s, 2.80’s, and 2.75’s. The 2.70’s are hard to find used. |
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