3 Attachment(s)
Scary Random Engine Clank/Tap
So I just bought a 1973.5 coupe with 118k miles or original miles. After a good clean up of tank and lines, fresh oil I got it started, but it makes an intermittent sound like a small hammer tap/clank on the case, but only on deceleration and idle. At a steady rpm it sounds perfect, its only when I let off or at idle it makes the random loud clank sound every 2-10 seconds.I am looking forward to doing a rebuild, but was also kind of hoping that it's something to do with cam chains so I can upgrade and drive in the spring when roads are salt-free and get to know the old tired engine before rebuilding. I took the cam chain covers off hoping to see an obvious explanation. I have read all threads but can't say for sure what I see. I think the left side looks stretched because of the smallish gap between idler arm and housing? It does not take a lot of force to deflect the chain 1/4". Also left tensioner piston looks more extended and possibly near end of travel. Any input from experienced eyes would be greatly appreciated!! thanks
ps. I have video of first start and clank but its 4 min long and figured too long
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Upgrading Tensioners For Sure
Quote:
Originally Posted by
gled49
Let me be the first to say, replace chain ramps. Just to get going if you want, update idler arms and tensioners, confirm cam timing, if noises are gone drive it.
I was going To do the OEM Carrera upgrade even though it was more expensive Because I have been punished by not using OEM parts in engines before. But if the experts here say that the Pelican upgrade kit that is SEBRO brand is good enough I just might do that instead And save 800 bucks. Also it looks like the OEM option does not have a link chain so could not be done with the engine in place. Any opinions appreciated. thank you