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EJ251 SOHC Timing
I went to do a timing belt change for the first time since conversion and got to setting TDC before removing the old belt. I noticed that the timing mark on the crank sprocket appears to be off by one tooth while the cams seem to be perfectly aligned. The van was running well. How is this possible?? Another observation I made was that the belt guide is not in place. This conversion was done by RMW so I was surprised to not see the guide. Donor car VIN lists MT so it should have been there, no?
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Thanks in advance for any insight.??
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tooh off - install error? skipped due to no guard? no guard?- install error? running well - guess you'll see if it runs better exactly on target!? possibly one tooth isn't enough to bend things.? you could always do a leak down test to?verify integrity. Let us know?what you find and how it runs! Andy Vanis USA and Whatsapp +1(505) 304-5306 On Thu, Mar 6, 2025 at 6:11?PM Ryan C via <candagrm=[email protected]> wrote:
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Way back I changed the timing belt in our 98 Forester 2.5 DOHC and previously someone had installed the belt one tooth off. Now I can't exactly recall whether it was off on one of the cam gears or the crank gear, bit fwiw the car had been running fine and ran even better after the new belt was correctly installed. I later mentioned to a mechanic friend about the trouble I had keeping all four cam gears in position while installing the new belt, as two or more really didn't want to sit still. He said he uses zip ties to hold the belt to the gears while installing - seems like a good idea. Jim On Thu, Mar 6, 2025, 8:11 p.m. Ryan C via <candagrm=[email protected]> wrote:
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I use clamps? Andy Vanis? 505-304-5306 USA and WhatsApp On Thu, Mar 6, 2025, 7:31?PM wallaces_21 via <grandfatherjim=[email protected]> wrote:
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I had the same issue when I installed a timing belt on my EJ22. I ended up prioritizing the crank position and my cams were a bit off. It wasn’t one whole tooth though, it was like 1/2 a tooth distance. So I shrugged my shoulders and ran with it (non-interference 1990 variant) and everything was fine. I’m not sure if this is typical, or helpful to you, but that was my experience.
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A new guide can't be too expensive; I like the peace of mind it gives. Terry A Shaw On Thu, 6 Mar 2025 at 20:11, Ryan C via <candagrm=[email protected]> wrote:
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I got this thing all timed up and running again. Close call! Compression checked out on all cylinders. Everything lined up perfectly with the new belt.
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Just a tip for anyone trying to prime a new oil pump. I took the filter off and gave it a good 20 seconds of constant cranking with the spark plugs removed and fuel cut off to get oil to start flowing from the filter housing.?
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