iNGALLS ETD lower engine block bolt gone- is that bolt critical the engine
#1
Thread Starter
iNGALLS ETD lower engine block bolt gone- is that bolt critical to the engine
I was working the s2000 today- oil change, defouler, rear brake pads- and noticed that the lower 10mm bolt on the front of the engine mounting the ETD was gone- the 2 top hex head bolts were fine. I took a closer look and it appears the original threads closer to the outer side have stripped at some point and the bolt was gone- odd as I always torque to spec correctly.
At any rate, i found a replacement bolt (about 100mm long) that would thread deeper into the hole.
My question is, what does that bolt hole do otherwise- when installing an Ingalls ETD, you remove that lower bolt and replace it with the long bolt. Is that a critical bolt to engine performance/longevity? What does that bolt do? I'll post a photo when i'm at home for clarification but your help is always appreciated.
I can't figure why the bolt unthreaded itself? I suppose I could retap the hole and do with a larger bolt if needed.
thanks
darcy
At any rate, i found a replacement bolt (about 100mm long) that would thread deeper into the hole.
My question is, what does that bolt hole do otherwise- when installing an Ingalls ETD, you remove that lower bolt and replace it with the long bolt. Is that a critical bolt to engine performance/longevity? What does that bolt do? I'll post a photo when i'm at home for clarification but your help is always appreciated.
I can't figure why the bolt unthreaded itself? I suppose I could retap the hole and do with a larger bolt if needed.
thanks
darcy
Last edited by darcyw; 10-07-2017 at 08:08 PM.
#2
Community Organizer
The bolt is one of many in the timing chain cover but it is one of 2 large bolts at the top of the cover. No sure why they have 2 large bolts in the cover but there must be a reason. The threaded hole is close ended so you have a limit on bolt length and hopefully the ETD spacer is still in place between the cover and the bracket. Good luck, I'm sure you will resolve the issue.
#3
Thread Starter
yes…thankfully the large inch long spacer is still in place- I always keep extra bolts around and was able to resecure it. I don't know how long the bolt has been missing- I was just down at the dragon- maybe lost it there? Upon researching a little more, the bolt is threaded at the end and the threads closest to the outside are the ones that capture the OEM bolt. The ETD has a bolt that threads inside the block. I try and post up a photo, but as we all know, photo bucket is not happy with us.
darcy
darcy
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08-01-2018 01:08 PM