Lee H
13-05-12, 10:30 PM
Hi all,
Not a Vauxhall but figured it was worth asking as there are knowledgable people on here and an engine is an engine after all. Its a Toyota engine I have stripped to fit forged pistons.
Stripped it over weekend and was a little disappointed to find a score down one of the bores. Can feel it with my nail but not sure if it warrents a rebore or not. Picture below.
Also the bores are a funny colour in places, not sure if this is normal.
http://i192.photobucket.com/albums/z163/Lee_H25/ff3885ee.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/dd4bd5f3.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/c4cef18d.jpg
Then moved on to looking at the crank and big ends. Crank looks ok but the big ends have some really funny marks on the upper bearing of each rod.
http://i192.photobucket.com/albums/z163/Lee_H25/dc09ab1e.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/7025c88b.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/2dff6870.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/d9b161ac.jpg
Anyone have any ideas what would have caused this? Don't want to repace them for the same to happen again. Funnily enough number 4 was in the best shape and this is the furthest from the oil pump so if it was an oil issue i'd expect the opposite.
Not a Vauxhall but figured it was worth asking as there are knowledgable people on here and an engine is an engine after all. Its a Toyota engine I have stripped to fit forged pistons.
Stripped it over weekend and was a little disappointed to find a score down one of the bores. Can feel it with my nail but not sure if it warrents a rebore or not. Picture below.
Also the bores are a funny colour in places, not sure if this is normal.
http://i192.photobucket.com/albums/z163/Lee_H25/ff3885ee.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/dd4bd5f3.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/c4cef18d.jpg
Then moved on to looking at the crank and big ends. Crank looks ok but the big ends have some really funny marks on the upper bearing of each rod.
http://i192.photobucket.com/albums/z163/Lee_H25/dc09ab1e.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/7025c88b.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/2dff6870.jpg
http://i192.photobucket.com/albums/z163/Lee_H25/d9b161ac.jpg
Anyone have any ideas what would have caused this? Don't want to repace them for the same to happen again. Funnily enough number 4 was in the best shape and this is the furthest from the oil pump so if it was an oil issue i'd expect the opposite.