Quality of New Mopar Timing chain/water pump Kit
I've been reading tons of posts on this site over the last few weeks and I've learned so much that I'm very confident working on my Dad's Intrepid. Thanks already for all your help!
This car was originally my company vehicle which I bought and gave to my dad about 7 years ago. It has always been well maintained and has been a good car. It is a 2000 Intrepid with the 2.7 and it only has 78K miles. I recently brought the car home to do the brakes and so far I've finished the brakes, I've replaced the hood and deck lid lifts, Inner and tie rod bushings and all four bushings on the rack and pinion. Now I'm doing the water pump, oil pump, timing chain, guides and tensioner. All of this stuff had normal wear, and not causing any problems yet but I thought it would be good to service before anything failed and caused bigger problems. The inside of the motor was clean and there was very little build up in the corners of the valve covers. I followed the advise of a few members on this site and I bought a factory service manual. Although its been a bit of work, I'm acutally enjoying myself and can't wait to fire it back up.
I'm waiting for a replacement water pump as kit I ordered was packed incorrectly and had the old style pump (big teeth) but the timing chain and gear set were the newer style (small teeth). The new pump should be here tomorrow, hope to have everything back together this weekend. All of the parts are factory Mopar that I ordered from Steve White Motors in North Carolina and are the new redesigned version for the 2.7.
Here's my question: The new chain is significantly lighter and smaller (in size, not length) than the orginal one, how can it be better by being so much less "beefy" than what I just took out? Also the left side chain guide is now all plastic instead of the aluminum body with the nylon chain guide. It this really a better set up than what was originally installed? The only thing I can think of is that perhaps there's less chain stretch since the pins are so much smaller...other than that I kind of like the original set better. Does anyone have the technical reason for the changes and how they are better? I'd be very interested to know, I really like understanding the rationale behind the way things are designed and how they work.
Great site, thanks for you input!