108 Refurbishment and Customisation

cj10jeeper

Lifer
 Lichfield, England
Those of you who know me well, know that I can’t stop doing little projects, so having got a set of 108’s on the Zed and really liked the look, I wondered if I could do something just a little different to the norm.

As luck would have it I grabbed a second set on Ebay, which were badly corroded, but almost no kerbing. They were displaying the advanced stages of the infamous lacquer failure, so they were the basis of the project.

Local tyre shop got rid of the old RFT’s for me and a 12 point spline set was sourced from http://www.toolmix.com
Pretty easy job to break them down using a rachet to ‘crack’ the bolts and then a power driver in low gear to spin them out. (with 80 bolts I didn’t fancy RSI) .

Well, just so you don’t think I started with a perfect set here’s the state of the rims..

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First step was lacquer off and I chose some good old Nitromors as it’s a thick gel and potent. It blistered the old lacquer off in minutes with a bit of agitation.
OMG – what was under that lacquer??

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The next step was to brighten up the rims with 400, 800 and then 1200 grade paper. These quickly removed tarnish creating a smooth, void of any minor grazes, but a dull surface.

To get a mirror shine I opted to buy a specialist buffing kit from the very helpful people at Merlin Abrasives They assembled me a whole series of polishing pads, polish, arbor and Vienna Lime (don’t ask me but it removes excess polish).

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As always I hate work, so I opted for a flexible drive off a bench stand drill, to create a powerful flexible buffer with the supplied 4” mop as the base tool
10 minutes per side of buffing and they turned to a mirror finish.
Advise from Merlin was to not lacquer, as for sure they would go again, as quite simply you can’t stop water getting under the lacquer from kerbing, even tyre fitting or a stone chip. On mine one major fault on one rim was a dented star point that had touched the rim. 3 coats of Poorboys now seal the rims so all they ever need is a once a month wipe around.

The inner faces were in good condition and just a few minor dings, but since these are ‘inside’ a couple of coats of steel wheel silver and then lacquer, had them pristine.

The stars I wanted different, so after Herminator did me a few photoshops which helped crystalise what I had in mind - a colour that was in harmony with Sterling grey, but not a flat paint finish. I tracked a local guy down who for £140, stripped back to bare, fixed minor imperfections, powder coated black and baked. That was followed by a transparent chrome wet paint and lacquered to create a wonderful smoked chrome look.
(Strangely he has in the last week purchased a 108 to do up in a similar way as a shop exhibit so I guess he liked the outcome)

So the exciting bit of putting them together. Matching the right casting to rim and bolting together with Locktite and torque up.

The end result I really like, but you’ll have to wait until the New Year when I’m allowed by Mrs CJ to get a set of Falkens and put them on. For now I’m putting them on the shelf and keeping the existing on as a Winter set.

I’ll try to get some better photos and substitute later, but for now you get the idea:

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The indoor photo does make them look darker than in reality where they are much more shiny and reflective bringing a depth through and a great shade to work with the Sterling Grey.
 
I like.

I am sure to follow this diy instruction in the new year.
I'm hunting some 108's over coming months.

Many thanks for the excellent write up and photos.

Scepte
 
Very nice indeed, like my SLK ones in shadow chrome, it is much darker but you can still see the curved and reflections.

If the lacquer fails so badly, why don't BMW just leave it off and have a polished rim instead?
 
Glad you guys like the outcome.

Mike - I can only offer my opinion that the lacquer is great when the car is launched and has tyres correcty fitted at the factory, however real world condition, kerbing soon breach it. Secondly no lacquer does mean it will need a wipe over with Poorboys, wax, etc, every so often and BMW/owners would never expect to do that.
 
awesome write up, looking forward to seeing them on the car. Mine are really knackered looking inside the rim, i will dig out the photos and post the piccies, would appreciate it if you could maybe give some advise as i am looking to do similar to you, but need to do something with the inner part fo the wheel.
 
After removing the bolts did you replace or reuse the originals? Have you torqued them up again or just done them 'Tight!' ?

Very smart looking they are. 10 out of 10 for effort. Stunning!
 
easty027 said:
awesome write up, looking forward to seeing them on the car. Mine are really knackered looking inside the rim, i will dig out the photos and post the piccies, would appreciate it if you could maybe give some advise as i am looking to do similar to you, but need to do something with the inner part fo the wheel.

easty - There were a few minor nicks on the inner faces of mine. I assume where the previous owner had hit them against the caliper or disk while fitting. I flattened those off with a file then keyed the surface with 600 grade and sprayed. If yours are serious marks I suggest normal car body filler, flatten it off prime and thne paint. Since its been so cold I preheated each rim with a rotary fan heater stood inside until warm to the touch (not hot) Just makes the paint work better.

Z4 monster yes I reused the bolts for couple reasons: They were all intact on removal, I had not got a readily available alternative of known quality and grade and the wheel shops reuse them all the time. Each was hand tightened in star sequence and then I 'felt' a torque I liked (I've been messing and building cars for 30+ yrs.). Checked it to be 30lb/ft, so then sequence set them all with a torque wrench. Each was fitted using Locktite. I will be checking them at 100 and 500 miles once on the car.
 
Superb job look really good :thumbsup:

What was the recomendation from the wheel boys on the bare metal outer rim to keep them tip top would a normal metal polish like autosol be OK.?
 
GAZA62 said:
Superb job look really good :thumbsup:

What was the recomendation from the wheel boys on the bare metal outer rim to keep them tip top would a normal metal polish like autosol be OK.?

Thanks for the compliment :)

The suppliers of the buffing kit recommended not lacquering and my own observation too showed it would break down again all too soon. Their suggestion was to use any good wax to protect it, so I chose Poorboys as it's supposed to be wheel specific. Autosol IIRC is a polish so would clean them but offer no protection.

When they have been on for 6 months I will be able to comment on how well they can be maintained
 
CJ

I presume your car is not a Daily Driver. I'm just wondering about the winter with all the crap on the roads and the protection from the wax especially from the joint.

Have you considered silicone, I know we discussed it before.
 
srhutch said:
CJ

I presume your car is not a Daily Driver. I'm just wondering about the winter with all the crap on the roads and the protection from the wax especially from the joint.

Have you considered silicone, I know we discussed it before.

The Zed is most certainly a daily driver and sees the road 6 out of 7 days from local runs to for instance a near 400 mile business trip on Tuesday. She has to earn her keep.

Having dismantled the 108's I now have a better feel for the structure and do not perceive the silicone to be a worthwhile idea as at would just make any subsequent break apart that much harder. My gamble is that a little wax each month will offer better protection that relying on lacquer that will certainly breach as soon as it gets a tap, scratch, set of tyres fitted, etc. and then give corrosion a perfect trap to work in.

Time will tell. For now I just sneak one of the 108's into the lounge to look at until I can get some 452's :rofl:
 
Well the project is finished!!! The Falken 452's arrived yesterday and had them fitted this morning, so a tantalising glimpse of the 'new' 108's finally on the car :)

I love the result and can't wait for this crap snow to move off so I can get out and about for some better shots when the car is clean and there is enough light to show them a bit better.

As an aside what a revelation the Falkens are. Only drove the mile from the fitter and on a mix of snow and ice, but it feels like a new car. No crashing and banging on the ///M suspension and felt so much smoother.

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Looking great :thumbsup:
A suprisingly close finish to the paint colour. I can't believe you've had runflats this long :poke:

Will you be keeping the new alloys on for the Feb meet?
 
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