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| Pushrod not seating after head gasket replacement https://www.ausmini.com/forums/viewtopic.php?f=2&t=55232 |
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| Author: | Mearcat [ Sat Jul 18, 2009 2:30 pm ] |
| Post subject: | Pushrod not seating after head gasket replacement |
I have just replaced the head gasket and after torquing up the bolts, I noticed that one of the pushrods is not seating in the cup. The pushrod is sitting lower than it should be so when the engine turns over, it does even push up the rocker arm. Before I pull the rocker assembly (or more?) off again, what can be the cause of this and how do I fix it? 
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| Author: | sports850 [ Sat Jul 18, 2009 2:58 pm ] |
| Post subject: | |
As a guess I'd say the cam follower lifted off the cam with the pushrod andfell over sideways , now the pushrod is sitting directly on the cam . Unbolt the plate that covers the cam followers at the back of the block and you'll be able to stand it up properly again and put the pushrod back in it . You'll have to take the rocker gear off to have enough room to lift the pushrod high enough to get it back into the cam follower though . |
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| Author: | mattsmadmini [ Sat Jul 18, 2009 3:03 pm ] |
| Post subject: | |
usually happens when taking the rods out too quickly (sounds silly i know...) but the oil is pretty thick stuff and sort of creates a slick around the rod etc etc... if you have an extra long flat head screwie or a thin long magnet thingo you can get it up with the engine in situ... it can be a bi-atch to get to though... (ask Chong  )
good luck! |
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| Author: | mini_mad_matt [ Sat Jul 18, 2009 3:03 pm ] |
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And if its what sports850 said and you dont have sidecovers on your engine then your in for fun times |
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| Author: | sports850 [ Sat Jul 18, 2009 3:05 pm ] |
| Post subject: | |
mattsmadmini wrote: usually happens when taking the rods out too quickly (sounds silly i know...) but the oil is pretty thick stuff and sort of creates a slick around the rod etc etc... if you have an extra long flat head screwie or a thin long magnet thingo you can get it up with the engine in situ... it can be a bi-atch to get to though... (ask Chong
)good luck! Just to avoid panic , what Matt means is in an 1100S motor without the two plates at the back of the motor there is no easy way to get access to them . In small bore motors and cooper s type 1275's there are access plates fo this purpose . |
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| Author: | TheMiniMan [ Sat Jul 18, 2009 3:20 pm ] |
| Post subject: | |
That actually can`t happen in a "Non-Side plate" type block,,, there is no big area for them to fall "up" into like the side plate blocks have so, it can`t happen But you`re most probably right if it`s a side plate block,,, very common to happen to the "un-initiated" 
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| Author: | sports850 [ Sat Jul 18, 2009 3:25 pm ] |
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I didn't think it was possible to do in an 1100S type block but wasn't going to open myself up to argument 
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| Author: | 850man [ Sat Jul 18, 2009 4:01 pm ] |
| Post subject: | |
TheMiniMan wrote: That actually can`t happen in a "Non-Side plate" type block,,, there is no big area for them to fall "up" into like the side plate blocks have
so, it can`t happen But you`re most probably right if it`s a side plate block,,, very common to happen to the "un-initiated" What he said
if you tilt the push rod over to one side & give them a wiggle it breaks the seal and they pull out without pulling the lifter up with them. |
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| Author: | Mearcat [ Sat Jul 18, 2009 4:46 pm ] |
| Post subject: | |
850man - I will keep that in mind next I may have to do it. But for now, 10 minutes work and everything is back together and pushrods are where they are supposed to be (and yes the cam follower had come out of it's hole) Thanks! -Alan |
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| Author: | TheMiniMan [ Sat Jul 18, 2009 10:09 pm ] |
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When i was about 12-13 years old i built up a race engine for myself,,, had it all done really well,,, short motor, check,,,, gearbox complete, check,,,, bolt gearbox to block bolted up,check,,,,, oil pump in, check... primary case on, check,,, clutch & flywheel pack in & tight,check,,, ok, now set up the cyl head, check,,, lay it ontop with new head gasket underneath,check,,, start dropping push rods in,,,ooops 
guess what??? yeah well,,, i have never done that again hey??? yes it was a "Non-sideplate" motor
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