Nissan repair questions? Ask a mechanic for answers ASAP
What was the original customer complaint and condition?
Has anything improved or changed with any of those new parts that were installed?
you shouldn't have chain problems unless there is an oil problem...Is there?
and i mean like 10,000 mile oil changes.
How many miles do we have on her now?
Well give me as much info as you can.
When starting you say it hangs up? like timing too advanced thing?
These engine are famous for bad intake gaskets, but you have bigger problems then that. Lets do a compression test to test for timing and mechanical trouble. With the miles you have on this I would bet a chain guide broke or worn out causing chain to slip a tooth. So thats your next procedure, Lets check compression. and then if thats off lets pull the chain cover and inspect timing.