I will be driving the vette a little less in the next few weeks so i need a list of things to do to my car fkr maintenance it has 78k miles and i dont know the history of the care past july so what should i do now? Spark plugs,wires, any regular c5 vette things that should b replaced round 70-80k miles? Thanks for the help

 

If you have no codes coming up on the DIC and your car is running well, I would just change all the fluids plus the serpentine belt(s). Should give you a decent starting point. Your mileage is about at the new plugs point tho'.

 

Thanks!

 

If you plan to replace the plugs, it appears the present recommended plug is one with a .040 gap in lieu of .060. I have a link at home if you want to review it and make your own decision.

I will PM Evil-Twin and see what he thinks since he was on the design team for the engine.

 

Thanks yea im going to buy them nxt week and wires and i fig ill replace valve cover gaskets and rear end fluid (herd they dry out) and clutch fluid

 

Here is the link on plugs. I am going to ask Evil-Twin what he thinks and will respond. Also, I forgot to mention you should check all the coolant hoses.

https://www.corvetteforum.com/forums...post1588452023

 

I spoke to Evil-Twin and here is what he sent to me. Remember he was on the engine design team.

Like many things I find on the Corvette Forum.. too much thought goes in to the finite discussion on things like spark plug gap. Back in the 60 and 70's spark plug gap was much more critical because of the ignition system.

Todays Plugs are designed with much better materials and design. Reach and heat range are dialed in at the manufacturing process. These plugs are designed to go 100,000 miles. Ive seen factory plugs at 100,000 miles with the gap at 0.070 in. without issue. 40 years ago a couple f thousandths could effect performance in a negative way. But Not today. The controversial range in plug gap from 0.040 to 0.060 is the range the plug could see during its life time. I tell people all the time to gap at 0.050 and they can successfully operate within the design even at 0.060. This overthinking is a waste of thought process. I understand everyone want the best. But the plug will properly deliver an Ideal spark and a much wider range than a single gap number.

I hope this helps . there are much bigger fish to fry then debating plug gap. Over kill ( or over thinking ) is a waste of time and money in this case.

There is no concern in a normal wear scenario over the life of the plug. Think of it this way.. if plug gap was critical, the manufacturer would have you chance the plug when the plug gap changed over normal use. Plugs can be successfully use for 100K, GM did testing to insure this when they were testing for 200,000 mile benchmark compliance. That's why Plug scheduled maintenance was set at 100K in the owners manual. IN 100K the plug gap does change, with little to no effect in performance.

Not sure if this helps, but that my thoughts. Bottom line.. too much sweat over a very small issue,.


Also, here is the link on hoses I spoke of before:

https://www.corvetteforum.com/forums...ant-hoses.html