[Healeys] 100 lifters

[i erbs]

Typically it's brass not ferrous. So no metal at all in the filter?

Ira Erbs
1959 AH 100-6
1967 MGB
Milwaukie, OR

On Thu, Aug 5, 2021, 9:09 PM Steven Kingsbury via Healeys <
healeys at autox.team.net> wrote:

> Thanks for the feedback. My tappets have never been silent. They have
> always made noise and though not as loud as my '68 MGB/GT that I had,
> they're not quiet. And after having adjusted them when I retorqued the head
> at 500 mile mark, they still weren't silent. They sound like my old BN1
> did. And because I have louvered bonnet on this car, they seem even a bit
> louder, but with the bonnet up and running in the garage, they sound almost
> exactly like my old car. Now when I'm out driving they seem pretty silent
> and the engine runs very smooth.
>    As for "fir" in the oil. When I drained my engine at the 500 mile mark,
> I ran all of the oil through a fine, paint filter and then used a magnet in
> the filter. Nothing appeared on the magnet. I also took the magnet and ran
> it through the oil before I poured it through the filter, and again
> nothing. I even ran the magnet through the empty drain pan after
> transferring the oil, and again, nothing.
>    Sorry to hear about your troubles and thank you for the tips on what to
> listen for and what to look for. Good luck with whatever you decide to do.
> And just to be clear, these lifters you used are not the new "new" ones
> available through AH Spares. Rather they are New Old Stock ones that have
> been in you possession for quite a while now, right?
>    Again, good luck and hopefully the cam isn't completely destroyed and
> you caught it in time.
> Thanks!
> Steven
>
> On August 5, 2021 at 5:39 AM, Michael Salter <michaelsalter at gmail.com>
> wrote:
>
> The first sign of problems was having to adjust the tappets which had
> initially been silent after 2000 miles and then again at 4500.
> After adjusting they were still audible and had previously been silent.
> Then at the 2000 and 4000 mile oil changes there was "fir" in the drain
> plug magnet.
> I'm very disappointed to have destroyed a very low mileage "M" cam and a
> set of NOS lifters that I had been saving for decades.
> I'm seriously considering having silicon nitride lifters manufactured but
> at over $1000 a set its a serious investment.
>
> M
>
> On Wed., Aug. 4, 2021, 10:47 a.m. Steven Kingsbury, <
> airtightproductions at icloud.com> wrote:
>
>> I just rebuilt my 100 engine and purchased my lifters from AH Spares in
>> the UK. These were their new design for better oil flow. I now have 1000
>> miles or so on the new engine and once I got my problems figured out with
>> my distributor, the car is running well and smooth.
>>    Now I'm wondering when the other shoe is going to drop! What problems
>> did you have pointing you to the lifters as the source of those problems?
>> When I retorqued the head, I readjusted the rockers and found no problems.
>> They were a little off, but I expected a little.
>>    What should I be looking for? I used Driven Break In oil and then I
>> switched to VR1 like you after 500 miles. I have been driving the car to
>> build up some trust in it and it's turning in to a joy to drive. I've got M
>> mods on this engine, cam, H6 carbs, M pistons and these new lifters. So
>> far, so good.
>>    Thanks for your help,
>> Steven Kingsbury
>> BN1
>>
>> On August 3, 2021 at 5:19 PM, Michael Salter via Healeys <
>> healeys at autox.team.net> wrote:
>>
>> After only 6000 miles the NOS BMC lifters that I installed in my engine
>> with a very low mileage "M" cam have started to deteriorate.
>> This engine has had a steady diet of VR1 non synthetic and it has had 4
>> changes in 6K miles.
>> Very disappointing.
>> I'm  considering trying bucket type Buick lifters with longer push rods
>> and a new cam.
>> Does anyone have experience with the durability of the old Buick lifters
>> ... getting a little desperate here.
>> Fortunately I caught this issue before it ruined the engine.
>>
>> M
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