4.5L 32v infiniti q45 v8 engine questions
4.5L 32v infiniti q45 v8 engine questions
Hello guys im new to this forum. (I am an audi guy) I have been given a 4.5L 32v infiniti q45 v8 engine. It has some damage, something to do with plastic getting in the intake or something. I was wondering if it would be cost effective to rebuild this engine. I was thinking that I could put it in a 240x or something. Where do you source parts for these engines? Has this engine been swapped into other cars before? Thanks, if you guys have any audi questions ill be happy to answer.
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Q451990
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The damage is probably the plastic timing chain guide failuere. Click the red "search" button in the upper right corner and try "Chain guides" "timing chain" etc.
Sometimes the guide debris is sucked up into the oil pickup tube on the oil pan and can cause even more internal damage or oil starvation. In most cases the guide failure causes the chain to slip and then the valves and piston heads hit and bend or break.
In any case, I'd think your new engine is probably toast. I had the dreaded guide failuere and was lucky enough to only slightly bend one valve. They were able to pull the head on that one side, replace the four valves on that cylinder, and then reassemble - but that's not the norm!
You might be able to make some $$ on eBay or in our Buy, sell, trade forum selling the injectors, throttle body, etc.
The last Audi I rode in was my parent's 1973 Audi Fox. Bright orange with green interior. No A/C, manual transmission, maybe only an AM radio, etc. Car had 37,000 miles on it when we sold it in 1983 or 84. I guess they didn't drive much... dad had a company car.
Good luck!
Heath
Sometimes the guide debris is sucked up into the oil pickup tube on the oil pan and can cause even more internal damage or oil starvation. In most cases the guide failure causes the chain to slip and then the valves and piston heads hit and bend or break.
In any case, I'd think your new engine is probably toast. I had the dreaded guide failuere and was lucky enough to only slightly bend one valve. They were able to pull the head on that one side, replace the four valves on that cylinder, and then reassemble - but that's not the norm!
You might be able to make some $$ on eBay or in our Buy, sell, trade forum selling the injectors, throttle body, etc.
The last Audi I rode in was my parent's 1973 Audi Fox. Bright orange with green interior. No A/C, manual transmission, maybe only an AM radio, etc. Car had 37,000 miles on it when we sold it in 1983 or 84. I guess they didn't drive much... dad had a company car.
Good luck!
Heath
We get parts from a few wholesalers, including Scottsdale Infiniti http://www.infinitipartsusa.com. If you were industrious you could probably rebuild the heads in 2-3 full weekends, but the parts are expensive. Q45tech, our resident guru, recently posted general prices of all the components. Assuming you didn't have to replace too much, it might be worth it. I think one member (Sopdadope?) recently did a dry fit of the 4.5 in a 240.
