Jump to content

Can Crankshaft Bearings be replace on a 63 Riviera without removing the engine ???


fxrspjc
 Share

Recommended Posts

I have done this in the vehicle MANY times.  I have even installed rear main seals using these same procedures

Remove the distriibuer cap & just let it hang out somewhere where it won't get damaged while your jacking up the engine. Remove the trans. dust/dirt sheild.  Six bolts.

Before jacking up the car remove the top motor mount bolt. ONE on each side.

Remove the 2 lower motor mount bolts. one each side.

Remove the 2 bolts holding the idler arm to the frame. No need to dis-connecr the center link. Leave the idler arm & center link connected.

IF the wheels are hanging pull down the idler arm down & both wheels should now toe in. You may have to turn the wheel , if i remember correctly, to the right to help give more clarence for the pan to come out.

Remove as many pan bolts as possible. There will be one bolt on each side that you can access when the engine gets jacked up by using a 1/4" extensions a 1/4"universal & a 1/2" socket.

Get two 2x4's by about 4" long. Also get a couple paint sticks & break them to it over or under the 2x4's. These are going to hold the engine up once it's jacked in position. 

Next jack the engine up as far as you can.  Keep an eye on the lower hose to make sure you are not going to stretch it too much.  Most don't. You don't want to pull out the bottom neck out of the radiatar.

Jack up the engine using the harmonic balancer. You don't have to worry about harming the balancer as it won't hurt anything because as soon as you put in the blocks of wood between the engine & block mounts you will be lowering the jack.  So it should only be jacked up for about 5 minutes. 

If something does happen to the balancer it was N/G anyway & may have saved you $$$ after the balancer was going to fail & fly apart not knowing this was goinng to happen.

Remove the last 2 pan bolts.  You may have to turn the engine over to get the cranlk throws to clear the front lip of the pan.

Hope this helps.

  • Like 1
  • Thanks 1
Link to comment
Share on other sites

If the car needs bearings, what makes you think the crank is round? And not scored or damaged? Pulling a motor isn’t that hard, and there is no time or effort saved trying to do it in place.

  • Like 2
Link to comment
Share on other sites

In all reality I would say it's up to the individual & feeling this has been done before & feeling comfortable performing this fairly simple task.

As most know IF you start doing other things it can come back to you & bit you where you know where. I've done rear main seals on "Nails" many times in the past.   A memorial one, when I told the guy to stick around, I've been working on his cars for years.  About an hour later I went into the front office & told him I was done.  He couldn't believe what he was hearing. I of course had a helper cleaning etc.

 

Tom T.

Edited by telriv (see edit history)
  • Like 2
Link to comment
Share on other sites

  To reduce some of the frustration doing main bearings in chassis, after you get the oil pan removed, let the car drip dry for a few days. Over the course of my career I did many in chassis rebuilds (heavy duty trucks) and when it came to the mains I would arrange to remove the oil pan late on Friday afternoon and let the oil drip from the motor over the weekend...not pleasant, not perfect, but it reduced some of the frustration. Those in chassis rebuilds helped maintain my jet black head of hair...but that`s gone now...both the jet black and most of the hair!

Tom Mooney

  • Like 1
Link to comment
Share on other sites

I replaced the mains on my '56 Chevy in the car years ago.  The actual bearing installation went pretty quick once the pan was off.  Motor Manual showed how to modify a cotter pin so that the head fit into the crank oil hole and the tail of the pin (bent flush with the crank) was used to push the old upper bearing shell out and then install the new one as the crank was turned by hand.  It really comes down to: (1) how easy is it to remove the pan and gain access to the crank and (2) what other work (other than the seal) does the engine really need...?

Link to comment
Share on other sites

19 minutes ago, EmTee said:

(2) what other work (other than the seal) does the engine really need...?

My first question.

 

Too many times I have seen the all knowing guy blow off the problem with "All it needs is a set of bearings" or the like.

 

Always remember, "I thought" are the two most dangerous words in the English language. Just think what happened right before the last time you heard those words uttered.

Link to comment
Share on other sites

On 8/16/2021 at 10:31 AM, 60FlatTop said:

My first question.

 

Too many times I have seen the all knowing guy blow off the problem with "All it needs is a set of bearings" or the like.

 

Always remember, "I thought" are the two most dangerous words in the English language. Just think what happened right before the last time you heard those words uttered.

 

I always heard "watch this" were the two most dangerous words.  Especially when prefaced with "hold my beer".

 

 

  • Haha 1
Link to comment
Share on other sites

On 8/16/2021 at 9:31 AM, 60FlatTop said:

My first question.

 

Too many times I have seen the all knowing guy blow off the problem with "All it needs is a set of bearings" or the like.

 

Always remember, "I thought" are the two most dangerous words in the English language. Just think what happened right before the last time you heard those words uttered.

The three most dangerous words in the English language are "Hold my beer"!

  • Haha 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...