hessianben Posted February 23, 2009 Report Share Posted February 23, 2009 Well, when I bought this motor, the PO had already removed the valve cover, head bolts, camshaft bolt, cam gear, and head bolts- with the chain and gear just sitting in the cover. The PO had barely begun to attempt to replace the headgasket, and had given up. I pulled it all apart, and while cleaning, found what looked like a slice in the bottom of the timing cover! It took me a second, but then realized that the chain must have gotten wedged in the bottom of the tcover, and then they tried to turn the crank bolt. Congratulations. Chain slice. So, can I patch it with JBweld? Or, should I not risk it, and pull the cover from the working L16? Options? Thanks! Quote Link to comment
Skib Posted February 23, 2009 Report Share Posted February 23, 2009 if youve got another cover dont even risk it, itl just be alot more work and trouble in the long run if you dont. Quote Link to comment
banzai510(hainz) Posted February 23, 2009 Report Share Posted February 23, 2009 man theres alot of emission shit on there. Jeff Hino has a stack of front covers!!!!!!!!!!!ICEHOUSE Quote Link to comment
MikeRL411 Posted February 23, 2009 Report Share Posted February 23, 2009 "So, can I patch it with JBweld? Or, should I not risk it, and pull the cover from the working L16?" You are in Huntington Beach, there are many aerospace industry qualified welders there who can Aluminum weld that puppy to look better than new. Shouldn't cost more than $25 for a first class job. I had my R 1600 finned aluminum valve cover's cracks [between the retaining stud holes] rewelded and you really have to look hard to find the repair. Support your local businesses, they ned the work during this recession. Quote Link to comment
datzenmike Posted February 23, 2009 Report Share Posted February 23, 2009 If you can find a local place to do it while you wait may be cheaper than the time and trouble to cross town for a $10 one. Put a new seal in it too. Quote Link to comment
hessianben Posted February 23, 2009 Author Report Share Posted February 23, 2009 I just realized that I have been assuming that the L16, L18 and L20 all have the same cover- right or wrong? Quote Link to comment
datzenmike Posted February 23, 2009 Report Share Posted February 23, 2009 (edited) That is definitely an L20B cover and no, the L20B cover is 2cm taller than the L16/18 and the L24/26/28 Z car. To tell at a glance look at the top left and right sides. An L20B will have 2 bolts on each side one above the other. The L16/18 and the inline 6 L only have one bolt. Change that $5 rear tranny seal while it's out, easy and you have to change the timing cover one anyway. Could save you having a drippy one later. Edited February 23, 2009 by datzenmike Quote Link to comment
hessianben Posted February 26, 2009 Author Report Share Posted February 26, 2009 Yep you're right- i had to dig out a pic... L16: L20: Quote Link to comment
hessianben Posted February 27, 2009 Author Report Share Posted February 27, 2009 You are in Huntington Beach, there are many aerospace industry qualified welders there who can Aluminum weld that puppy to look better than new. Shouldn't cost more than $25 for a first class job. I had my R 1600 finned aluminum valve cover's cracks [between the retaining stud holes] rewelded and you really have to look hard to find the repair. Support your local businesses, they ned the work during this recession. Well, I took that hint and did some research- found a place close to my house called Sertec Precision Machining- they make prototypes of everything from performance/custom automotive to aircraft parts in house! rows of cnc machines and lathes.... their welder was in, and he busted this out within the hour for $20! deal!! So, thanks for those who replied with possible donor covers- but I'll give this a whirl first! thanks! Quote Link to comment
72240z Posted February 27, 2009 Report Share Posted February 27, 2009 Glad to see this worked out easily for you. I have a question since the thread is over and it's on topic. Has anyone ever tried braising alum with special rod? I seen some vids on youtube that were very convincing. Looks like something we could do at home for free in these instances. Opinions? Experiences? Quote Link to comment
yello620 Posted February 27, 2009 Report Share Posted February 27, 2009 I have a question since the thread is over and it's on topic. Has anyone ever tried braising alum with special rod? I seen some vids on youtube that were very convincing. Looks like something we could do at home for free in these instances. Opinions? Experiences? Co-worker does this occasionally with RC truck parts. I havent seen any end results that looked good to me yet though. I'm sure that there must be a technique to get it right. Quote Link to comment
72240z Posted February 27, 2009 Report Share Posted February 27, 2009 Ya what I see online is to get the 2 parts to be joined as hot as possible and then fil and wipe, fill and wipe, fill and wipe. I'm sure heat control makes all the dif like most all braising. It reminds me of old school pig iron working, pre bondo. Quote Link to comment
hang_510 Posted February 27, 2009 Report Share Posted February 27, 2009 their welder was in, and he busted this out within the hour for $20!deal!! So, thanks for those who replied with possible donor covers :thumbup: good to hear!!! local & $20 is cheaper than what most covers woulda cost ;) im going to have my Z24 cover modded to mate w/the L head, gonna call these guys to get an est :D Quote Link to comment
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