-------------------- 1 --------------------
#1. Re: [E36M3] Valve Train Maintenance on club race car - from KLchmn@aol.com
Top
Date: Tue, 10 Feb 2004 15:29:48 -0500 From: KLchmn@aol.com Subject: Re: [E36M3] Valve Train Maintenance on club race car I forgot to mention that I am chasing an intermittent high coolant temperature issue. I've done the obvious cooling system stuff, but more and more indications are pointing towards the possibility of a slight leak in the head gasket or the dreaded crack between #4 spark plug and one of the exhaust valves. Long, full throttle pulls cause problems. I'm pretty sure that the valve retainers have been updated in the BMW parts system (i.e., old part number superceded). Should I do the VaNoS stuff just because or not? Kirk Lachman Sin City Chapter '95 M3 #21 I-stock
-------------------- 2 --------------------
#2. Re: Valve Train Maintenance on club race car - from Neil Maller
Top
Date: Tue, 10 Feb 2004 16:37:04 -0500 From: Neil Maller <neil.maller@gte.net> Subject: Re: Valve Train Maintenance on club race car on 2/10/04 3:44 PM, KLchmn@aol.com wrote: > The head is coming off my '95 M3 (4/95 production, 46k miles). > > Besides the valve spring retainers, what should I replace/maintain/do to the > valve train? Remember, I'm in stock class so no bigger > cams/valves/nitrous/solid rocket propellent type solutions please. > > Any "while you are in there" type things that I should take care of? At some point in the M3 3.2 production run BMW apparently made a running change to valves of a revised design (no part number change shown). I've never seen them, but they're supposed to have concentric rings machined into the top of the heads, and this does something beneficial for gas flow. Is that sufficiently vague? The 3.2 and 3.0 engines (as well as a whole slew of other BMW engines) use the same valves, so you could consider upgrading. No idea if it's worth the effort/expense if you weren't planning to renew the valves anyway. Depending on how hard a life the car has endured to date, and how badly you don't ever want to take the head off again, you could consider new valve springs and even lifters. All that stuff really adds up though. Enquiring minds want to know why your head has to come off... Neil 96 M3
-------------------- 3 --------------------
#3. E36 M3 track pad (front and rear) - from AVUSM3@aol.com
Top
Date: Tue, 10 Feb 2004 16:37:51 EST From: AVUSM3@aol.com Subject: E36 M3 track pad (front and rear) Alex - Per your question below - I have used PF90, PF97, Porterfield R4, Mintex, and Pagid Black RS14 track pads on the front of the M3. There is basically only one reason not to like the PF97s - that is when they dust significantly, and the dust is allowed to get wet and then dry on the wheel, it is literally almost impossible to get off. I have basically ruined the stock finish on a set of BBS RKs using these pads. The problem is not limited to those wheels either - I know several other people with similar results from PF97 usage with other wheels. Everything else about the PF97s is awesome; no fade, very long wearing, no hotspots on the rotors, etc. But if you like you wheels the way they look now, you need to use caution when using these pads in wet conditions. John Cloutier What happened to this lists's perennial favorites - PF 90/97 pads? I liked the old PF-90s, but moved one to Hawk Blues before trying PF-97s Has PF stopped offering the E36M3 list discount? People moved on to other exotic compounds? Went underground with the PF affection? alex f
-------------------- 4 --------------------
#4. RE: Valve Train Maintenance on club race car - from Bob Stommel
Top
Date: Tue, 10 Feb 2004 16:26:22 -0500 From: Bob Stommel <rstommel@iquest.net> Subject: RE: Valve Train Maintenance on club race car Kirk: I think you can put in the hardened (96-on) valve retainers and still be okay in Stock class, since they are factory OEM parts. In addition to the hardened retainers, since you will have the head off anyway, you might as well do the following at the same time: Check cylinder head for straightness and get it resurfaced if needed (this is extremely important on a race motor) Replace all valve guides Check all valves to make sure none are bent Get the valves and valve seats reground Check uninstalled height dimension of all valve springs -- replace any that are shorter than minimum spec height Replace the cam sprockets Replace the timing chain tensioner Check camshaft lobes for pits and scoring Also, while the head is off, take a look at these: Check all the head bolt holes and coolant passage holes on the block for micro-cracks (use Magnaflux or other dye penetrant) Check the valve relief pockets on the tops of the pistons for any signs of piston-to-valve contact (this is a sure sign of an over-rev) This is about all you can do and still be legal in Stock class. No porting or polishing allowed. HTH, Bob Stommel SPG Motorsports >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Date: Tue, 10 Feb 2004 14:50:59 -0500 From: KLchmn@aol.com Subject: Valve Train Maintenance on club race car Gruppe, The head is coming off my '95 M3 (4/95 production, 46k miles). Besides the valve spring retainers, what should I replace/maintain/do to the valve train? Remember, I'm in stock class so no bigger cams/valves/nitrous/solid rocket propellent type solutions please. Any "while you are in there" type things that I should take care of? Thank you. Kirk Lachman Sin City Chapter '95 M3 #21 I-stock
-------------------- 5 --------------------
#5. Re: E36 M3 track pad (front and rear) - from Neil Maller
Top
Date: Tue, 10 Feb 2004 16:44:33 -0500 From: Neil Maller <neil.maller@gte.net> Subject: Re: E36 M3 track pad (front and rear) on 2/10/04 3:44 PM, alex.fadeev@verizon.com wrote: > What happened to this lists's perennial favorites - PF 90/97 pads? I liked > the old PF-90s, but moved one to Hawk Blues before trying PF-97s I liked the old PF90 compound, and went through more than a few sets over the years. However the PF97 which superseded it acquired the same toxic/corrosive dust problem as the old Hawk Blue, but without the Blue's incredible temperature resistance. I've switched to the Hawk HT-10, but don't yet have enough track time with them to comment. Pricey though. Neil 96 M3
-------------------- 6 --------------------
#6. RE: [E36M3] E36 M3 track pad (front and rear) - from Tim Williams
Top
Date: Tue, 10 Feb 2004 18:56:54 -0500 From: "Tim Williams" <willtj@bellsouth.net> Subject: RE: [E36M3] E36 M3 track pad (front and rear) I warped my first set of front rotors - solid hub using stock pads - at my third school (Carolina Motorsports Park) as a C student. I took advantage of prevailing list wisdom and went with, simultaneously, eurosport - floating rotors in combination with PF90 track pads front and rear. I'm now an A student and have used variously the PF90, PF97, and R4 pads for the track. No more problems with brake warping. All these pads do generate dust that is very difficult to remove once it has been allowed to sit. FYI, the PF97 is an alternative compound to the NLA PF90. All these pads function well on the track. The PF90/97 seems to me a bit more aggressive than the R4, but note this is subjective. Andrew, I am curious, have you experience with these two pad types, and if so, how would you compare them to the DS3000? Also, I am considering going back to the solid hub rotors to save a little money since I suspect the change I made to the race pad had more to do with curing my warping issue than the eurosport rotor did. Comments? Tim 95M3 -----Original Message----- From: Andrew - Taylor Autosport [mailto:astaylor@taylorautosport.com] Sent: Tuesday, February 10, 2004 12:35 AM To: E36M3 Subject: RE: [E36M3] E36 M3 track pad (front and rear) Date: Tue, 10 Feb 2004 00:20:27 -0500 From: "Andrew - Taylor Autosport" <astaylor@taylorautosport.com> Subject: RE: [E36M3] E36 M3 track pad (front and rear) DS3000. Has it all. Flat torque curve, broad temp range, effective (high friction) at very low temps. Pretty much the highest mu in any pad available for saloon cars (i.e. not ultra high downforce prototypes and single-seaters). Not to be argumentative or anything, but I'm not alone in that I've never really been a fan of Hawks.
-------------------- 7 --------------------
#7. Valve Train Maintenance on club race car - from dhogg
Top
Date: Tue, 10 Feb 2004 19:09:42 -0500 From: "dhogg" <dhogg@suscom.net> Subject: Valve Train Maintenance on club race car Kirk, Lifters. Replace the lifters, and things will be quieter on startup. It's gotta help power too. Bimmerworld has good pricing. >I'm not an expert but is testing the flow of the head and smoothing/cleaning up the ports allowed? What about polishing?< Sorry, no port matching is allowed in IS class. :^( And if its been a club race car for awhile, 46K is NOT low mileage. My motor is completely apart at 32K, but it was pressed into service as a race car just after being retired as a dealer demonstrator in '95. Poor thing. These are very hard miles. Dave Hogg IS #20
-------------------- 8 --------------------
#8. windshield washer jet - from Bruce
Top
Date: Tue, 10 Feb 2004 18:20:00 -0600 From: "Bruce" <gobuffs93@comcast.net> Subject: windshield washer jet Both my windshield washer jets appear to be clogged. Does anybody know if they can be taken apart and cleaned? Or do I need to buy 2 new ones (cost?)? Or maybe there is another culprit? Thanks, Bruce 89 M3 2.5 95 330 CSi
-------------------- 9 --------------------
#9. Re: [E36M3] e39 brake pad info needed - from Carl Stern
Top
Date: Tue, 10 Feb 2004 17:36:16 -0700 From: Carl Stern <Carl.Stern@xilinx.com> Subject: Re: [E36M3] e39 brake pad info needed >All German OEM brake pads contain graphite (by regulation) I have asked for a reference to this claim before but never found one. Perhaps a German list member could help us out. I did a little research on this. (emphasis on little) The name TUV (can't do an umlaut) is usually stated as the German agency that specifies this law. Here is my take on it. If someone can prove me wrong and knows the real truth I'd like to hear it. TUV seems to be more of a testing lab or standards measuring company. It originated in Southern Germany but is now international. TUV approval is like an ISO rating, or an Underwriter's Laboratory (UL) seal. Perhaps German brake pads need a TUV approval, like we need DOT approved tires to be street legal. I found no evidence of any German law stating graphite must be used in brake pads, but I don't know how to search German law. Graphite seems to have some beneficial qualities in brake pads, which is why it is used. I found references to its use in SAE papers noting it as a solid lubricant. Apparently pad release characteristics, vibration and noise reduction and even as filler are some of its qualities. I hope I gave a little more insight as to why our wheels turn black. Carl Stern
-------------------- 10 --------------------
#10. RE: [E36M3] windshield washer jet - from Walter Jordan
Top
Date: Tue, 10 Feb 2004 19:36:01 -0500 From: "Walter Jordan" <walter@walterj.com> Subject: RE: [E36M3] windshield washer jet Someone please answer this - I have been cleaning mine with a dental pick every time I fill up. -----Original Message----- From: Bruce [mailto:gobuffs93@comcast.net] Sent: Tuesday, February 10, 2004 7:35 PM To: E36M3 Subject: [E36M3] windshield washer jet Date: Tue, 10 Feb 2004 18:20:00 -0600 From: "Bruce" <gobuffs93@comcast.net> Subject: windshield washer jet Both my windshield washer jets appear to be clogged. Does anybody know if they can be taken apart and cleaned? Or do I need to buy 2 new ones (cost?)? Or maybe there is another culprit? Thanks, Bruce 89 M3 2.5 95 330 CSi ************************************************* Please help support the E36M3 list by visiting our sponsors: Taylor Autosport http://www.taylorautosport.com Rogue Engineering http://www.rogueengineering.com BMW M3 Specialties http://www.jt-designs.com Bimmerworld http://www.bimmerworld.com Turner Motorsport http://www.turnermotorsport.com Eurosport High Performance http://www.eurosporthighperformance.com DIGEST INFORMATION: http://www.bmw-m.net/resources/digest_info.htm *************************************************