so what'cha doing september 10th? I gotta pull the engine out of my 98 ford ranger and replace. blown head gasket and rumored a popped piston. cheaper to just buy a donor motor and swap. 4cyl and easy as pie, just kind of lazy right now...:rolleyes:
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so what'cha doing september 10th? I gotta pull the engine out of my 98 ford ranger and replace. blown head gasket and rumored a popped piston. cheaper to just buy a donor motor and swap. 4cyl and easy as pie, just kind of lazy right now...:rolleyes:
Doc - I admire the can-do attitude. Post a pic of the whole sled with the rebuilt engine installed. - Deerfield
More than likely the rave valve is worn and traveling too far,thats what grabed the rings and caused the piston failure.
Wow Doc, nice work. can you do rebuild pics too? Love to see how-to's like like this.
bump for DOC
Last night I went in to the shop manual then poked around the engine and found that the TB throttle body to intake manifold rubber boot clamp was not even secured. I could rotate it around the port on the PTO (power take off) cylinder ( the one fried) . On the MAG cylinder (closest to the magneto) the clamp was not tight as well. I bought the doo 3 years ago so I have to think it was like this all the time and I was lucky to have it last this long. So I think with the air leaking in thru this could definitely caused a lean condition and destruction of this cylinder. Contrary to mike above the rave valve cant travel further into the cylinder as it wears imo as there is a definte stop.
The Doo
http://farm7.static.flickr.com/6193/...c8fc56e4_z.jpgDSC04966 by docdrs, on Flickr
loose clamp between TB and Intake manifold
http://farm7.static.flickr.com/6198/...fa7a223b_z.jpgDSC04974 by docdrs, on Flickr
Jugs back from resizing .020 over
http://farm7.static.flickr.com/6207/...1599b461_z.jpg
DSC04967 by docdrs, on Flickr
Rave valves were ground back at shop for oversizing of cylinders. I think I'm going to take a little more off the middle of the pto cylinder rave as the clearance does not look as much as the rest of the valve.
http://farm7.static.flickr.com/6064/...44d934ff_z.jpg
DSC04970 by docdrs, on Flickr
http://farm7.static.flickr.com/6201/...4acddca2_z.jpg
DSC04973 by docdrs, on Flickr
pick of inside of doo
http://farm7.static.flickr.com/6185/...eec4e213_z.jpg
DSC04976 by docdrs, on Flickr
new rebuild kit
http://farm7.static.flickr.com/6085/...e0e305b1_z.jpg
DSC04977 by docdrs, on Flickr
trial fit of piston, rings wrist pin and bearings
http://farm7.static.flickr.com/6071/...3b2cf92b_z.jpg
DSC04980 by docdrs, on Flickr