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Better options/choices?
Hirnbeiss, thanks for your helpful tip in your last post. Any other type of metal plastic bond/seals for threads out there as well that would work, specifically on the head thread issue?
ejboyd5, thanks for responding:
"Search the parts diagram for your engine to determine how many bolts of each length are required and the exact location for each length in the head. You may be dealing with a simple misassembly issue."
According to the parts diagram, it shows the length of each of the 2 bolts is the same size: M6 x 65 with washer (15 is the number showing the bolts and its location on the valve cover diagram). See the attachment image below under the section bolt diagram :
See attached photos below of the 2 bolts with helicoils that were removed. Notice the 2 bolts are the same size M6 x 65 with washer:
Rick76, thanks for responding in your last post. A longer Helicoils might work to replace the shorter helicoil I have on both bolts as indicated in the photos in the attachment. I am just keeping my options open as to what would be best to resolve this issue.
Rick76, "Even with those 2 bolts not tightening fully you should not have the large amount of oil leaking that is shown in your pictures on another post. Maybe you should start over and pressure wash and degrease the engine and try to track down the source."
Response. When I first started on this issue, I removed the plate cover over the spark plugs on top of the valve cover and there was a lot of oil inside. I cleaned up the oil in the surrounding areas near the wire packs, spark plugs,etcs., and replaced with a new valve cover gasket, including the spark plugs seals along with the half moon gaskets that goes back in the rear engine. Also, I replaced the fuel injector located in the front driver's side because the older fuel injector was missing its o ring and had a lot of oil on it.
I already cleaned up the engine area using the degreaser prior to tracking down the source of leaking oil.
in regards to the type of form a thread inside the hole on top of the head. Should I use Loctite 442-28654 4.80ml Form-A-Thread Stripped Repair Kit or Bondo® Plastic Metal, 5 ounce, Plastic Metal seals? Does it make any difference? Any other brand of form a thread that would work on repairing these particular threaded holes on top of the head?
What about replacing with a longer Helicoils with the same size that will fit on the bolt?
How about using a longer bolt than the current size M6 x 65 to replace using a longer or shorter helicoils without fracturing the top head hole thread? Can that be done and if so how much longer of the bolt size M6 x 65 that could possibly work?
if using a form a thread, where should the application goes? Inside the hole? On the bolt? Would putting on form a thread on the outside or inside of helicoils would work?
How about using a longer bolt size to replace the current size bolt? Would that work without damaging/fracturing the area around the bottom/top hole of the thread? If a longer bolt is advisable, what length should it be? Would using a longer helicoils or the same helicoils that I have now would work better with a longer bolt size? Sorry about repeating myself. Just to explore what are my best options at this point.
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