Author Topic: Timing cases? (Read 3583 times)

oliwally · « **on:** January 21, 2009, 05:15:17 PM »

Hi,just bought a cheap E30 with the dreaded profile gasket failure.
Stripped it down at the weekend to find about a million breather hoses and water pipes split or falling apart.
The profile gasket was toast,but it looks like the timing case has been eaten away with corrosion too,the grove that the gasket sit in has gone or is it ment to look like that?
can any timing case be used or is the later E36 different and not suitable?

nicknikolovski · « **Reply #1 on:** January 22, 2009, 04:06:18 PM »

The E30 M42 shares the same part no. for the lower timing case as the E36 M42 up to 9/93. After 9/93 the part no. for E36 M42 changes - I think because the deflection wheel is replaced with a small deflection guide. This is the part no. 11141727191.

oliwally · « **Reply #2 on:** January 24, 2009, 10:41:30 AM »

Quote from: nicknikolovski;65190

The E30 M42 shares the same part no. for the lower timing case as the E36 M42 up to 9/93. After 9/93 the part no. for E36 M42 changes - I think because the deflection wheel is replaced with a small deflection guide. This is the part no. 11141727191.

How do you tell the difference between these? can they be made to work with the older engines?

peerless · « **Reply #3 on:** January 24, 2009, 12:43:12 PM »

Just suck it up, they are $265 new from the dealer. Welcome to the wonderful world of M42's. Expensive little shits aren't they?

Used one?, They all look like the one you got. If your lucky the water hasn't gone behind the cover, soaked into the gasket, and rusted out the face of the engine block itself. If you replace the cover you will want to replace the oil pump and oil pressure relief valves as well. The oil pressure relief valve was originally steel and is known to seize. When it does you lose oil pressure then then the engine grenades. The old one is steel in a aluminum bore, the superseded part is nylon/composite.

Case Cover:

Block Side, After machining. You can only take about .010" off max, other wise you get a bind with the crank and oil pump.

New timing case. Oh ya, make sure you order the upgraded oil pressure relief valve too. Might as well get a oil pump while you replacing the front cover.

oliwally · « **Reply #4 on:** January 25, 2009, 06:46:14 PM »

oh dear,looks like i'm in for some wallet bashing. my M42 is certianly going to live up to Broke My Wallet

RED IS 91 · « **Reply #5 on:** January 26, 2009, 08:45:19 AM »

Quote from: oliwally;65351

oh dear,looks like i'm in for some wallet bashing. my M42 is certianly going to live up to Broke My Wallet

How many miles on your car? It's rare to hear of a car that the profile gasket hasn't been fixed on.
Usually they don't last more than 70,000 miles before the original gasket fails.