Jump to content

Project: Bucket Of Rusty Excrement 78' 620 KC


Recommended Posts

So long story Short, Here is my baby. my 78' 620 King Cab. His name is Sebastien, and (excuse my french) he is a P.O.S. he has been in my Family since April of 08', and it may not be too long compared to some of you but in that time he has made a Lasting Impression.

 

SDC11209.jpg

 

The truck used to be my dads, and he only bought it for parts for his 73' 620. well he drove it for a little while, and then parted it. but while he drove it, i got the chance to ride along, and i fell in love. so here is where my journey with him begins.

 

As of right this moment, this is how he sits, Motorless, rotting, but hopefully within the year working again.

 

023.jpg

 

 

So plans consist of(at this moment):

 

-Fix 5speed Trans I have (missing 2nd &5th)

-Rebuild and drop in L16

-Upgrade to Saturn Alternator

-Wire up Power Leather Mercedes Seats out of an 81' 300SD

-Wire up Mercedes headlights and Fogs out of the same 81' 300SD

-Fix floors (as of now I can Flintstone it)

-Get it Legal again

-DRIVE THE PISS OUT OF IT!

 

Later Plans Include a Street Port Carbed 13B Wankel

Link to post
  • Replies 37
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

So I got this L16 from Tristan Yesterday, and so  today I decided to get it degreased and start the Teardown.

 

temporary_zps531ce0b0.jpg

 

temporary_zpsc5f454fb.jpg

 

temporary_zpsb1ffcfe4.jpg

 

temporary_zpse845f6c4.jpg

 

temporary_zps553d3316.jpg

 

^LOOK AT HOW SMOOTH THOSE CYLINDERS ARE!!!!!^

 

temporary_zps4153f2ae.jpg

 

After the Degeasing

 

temporary_zps79d92fab.jpg

 

and the beginning of the Teatdown

 

temporary_zps45e60de1.jpg

 

temporary_zpsa25e2719.jpg

 

temporary_zps44944251.jpg

 

temporary_zpsfd086e77.jpg

 

Plan for tomorrow is to flip it over, Pull the pan and start the complete teardown.

 

OH! on a side note, anyone willing to trade (from what i understand is) a 510 L20B oil Pan for an L16 620 Oil pan?

Link to post

620's never came with an L16. Just a heads up on that.

 

Someone could have put that 620 pan on there.  Actually. It looks like it came off the motor I sold him.  Which, would fit any L series. 

Link to post

620's never came with an L16. Just a heads up on that.

 

Someone could have put that 620 pan on there.  Actually. It looks like it came off the motor I sold him.  Which, would fit any L series. 

 

possible it is, just from what i Heard it is not the right Pan. He said he got this one From DatWifey and Brody.

 

620's did get the L16, for 72' and 73' both my dads 73's came with them factory.

  • Like 1
Link to post

OH! on a side note, anyone willing to trade (from what i understand is) a 510 L20B oil Pan for an L16 620 Oil pan?

 

Probably a 510 L16 oil pan on an L20B, possibly another car L20B oil pan but not a 510 L20B.

 

 

620's never came with an L16. Just a heads up on that.

'Fraid they did grasshopper. The 620 came out around Jan/April '71 (as a '72 model year) through Sept '73 and used an L16 standard or automatic. First automatic truck.

 

There would have been some variances between L16/18 and the L20B 620 oil pans because of engine height differences and motor mounts but all will interchange and should work or be easily made to fit. (BFH)

Link to post

 

Probably a 510 L16 oil pan on an L20B, possibly another car L20B oil pan but not a 510 L20B.

 

 

Figured somthin like that. The motor IS completely an L16 though, unless they mis-stamped the block. i'll figure out this oil pan situation hopefully soon. 

Link to post

Made more progress on the Teardown today.

 

Was able to get it down to the block

temporary_zps5cafbb2d.jpg

 

Bearings out and Labeled

 

temporary_zpsa75f815e.jpg

 

temporary_zpsa1163705.jpg

 

temporary_zps8eda6100.jpg

 

temporary_zpsd6e1d81f.jpg

 

Noticed some scorch marks on both Main and Con rod Bearings so my wild guess is that it was having Lubing problems. looks like I am goin to need a new Oil Pump :sneaky:

 

temporary_zps26e92de3.jpg

 

temporary_zpsfd9630f8.jpg

 

temporary_zps974f73f1.jpg

 

temporary_zpsb43210ab.jpg

 

 

 

Since we were able to tear it apart more, i was able to start a list on some things i need

 

- Oil Pump (goin to run a KA24E oil pump, from what I understand Has A higher flow rate)

- New Oil Pickup (didn't have one in the motor)

- New Timing Set

- Both Upper and lower Gasket Sets

- New waterpump(going L20B cause I have the space for the Fan Clutch)

 

 

 

Now i do have a few questions.

 

- Can I run ARP L20B Head studs? not entirely sure on the differences between the actual size of the L20B compared to the L16 :blush:

-Connecting rod bolts, can L20B bolts be used?

 

 

Anyway, thats what I have for today. hope to be able to start lookin at the Head that is goin on it within the next few days

  • Like 1
Link to post

I cant remember what pan is on there... I vaguely remember Jenn telling me I would need to use my own 510 pan when I swapped it in, but I cant be certain. I would PM her and ask... see if she can recall. 

 

 

Do you know how different the 521 pan is compared to the 620 pan? I have a 521 pan and pickup from the motor Izzo sold me. 

Link to post

Made more progress on the Teardown today.

 

Was able to get it down to the block

temporary_zps5cafbb2d.jpg

 

Bearings out and Labeled

 

temporary_zpsa75f815e.jpg

 

temporary_zpsa1163705.jpg

 

temporary_zps8eda6100.jpg

 

temporary_zpsd6e1d81f.jpg

 

Noticed some scorch marks on both Main and Con rod Bearings so my wild guess is that it was having Lubing problems. looks like I am goin to need a new Oil Pump :sneaky:

 

temporary_zps26e92de3.jpg

 

temporary_zpsfd9630f8.jpg

 

temporary_zps974f73f1.jpg

 

temporary_zpsb43210ab.jpg

 

 

 

Since we were able to tear it apart more, i was able to start a list on some things i need

 

- Oil Pump (goin to run a KA24E oil pump, from what I understand Has A higher flow rate)

- New Oil Pickup (didn't have one in the motor)

- New Timing Set

- Both Upper and lower Gasket Sets

- New waterpump(going L20B cause I have the space for the Fan Clutch)

 

 

 

Now i do have a few questions.

 

- Can I run ARP L20B Head studs? not entirely sure on the differences between the actual size of the L20B compared to the L16 :blush:

-Connecting rod bolts, can L20B bolts be used?

 

 

Anyway, thats what I have for today. hope to be able to start lookin at the Head that is goin on it within the next few days

.

 

That 'scoring' is nothing. It's the other side of those bearing shells that need to be looked at.... the sides that the crank mains and rod journals ride against. They are covered with layers of soft metal and will show wear often right down to the copper backing material. Nothing in these pictures looks abby normal.

 

MartyFeldman.jpg

 

Flip those bearing shells over and show pictures of them and the crank.

 

Posting to prove this thread is NOT boring

  • Like 1
Link to post

Oil Pump I.D.:

 

http://community.ratsun.net/topic/57443-oil-pump-suggestions/

 

When you post a WTB ad for your oil pan, just post it as "620 oil pan needed".  It doesn't matter what engine it's from, as long as it fits your 620.  You will get less confusing responses that way.  Also, see if you can get the oil pick-up tube with the pan.  If you can't get a matched set, it's not a huge deal.  I was able to heat my L20B tube up and bend it into the correct position for my 510 pan....  Just make sure you measure everything first.

Link to post

can you scrape up $400?

 

 

for that '79 KC up around the corner from me; it has a lot less rust than yours

 

 

Yeah bu, l20, 5 speed (i think) discs, and stepside (If thats your thing)

Where is this rust free KC for $400 that you speak of? I am interested. :)

  • Like 2
Link to post

I cant remember what pan is on there... I vaguely remember Jenn telling me I would need to use my own 510 pan when I swapped it in, but I cant be certain. I would PM her and ask... see if she can recall. 

 

 

Do you know how different the 521 pan is compared to the 620 pan? I have a 521 pan and pickup from the motor Izzo sold me. 

 

i'm not sure, i just looked at the L20 pan my dad on his, and it seemed a bit thinner, other than that they loook the same so I think it will work, but when i test fit the engine i will find out.

 

What head you plan on using?

 

just a round port A87

 

temporary_zps034791ca.jpg

 

temporary_zpscd964029.jpg

 

temporary_zps4feed13e.jpg

 

Needs some clean up but will do the Job

Link to post

.

Flip those bearing shells over and show pictures of them and the crank.

 

Posting to prove this thread is NOT boring

 Thank you :D

 

and as requested here they are.

 

temporary_zps68944171.jpg

 

temporary_zps4b28e7ca.jpg

 

temporary_zps01b69a9c.jpg

 

temporary_zpsb2c8dd10.jpg

 

temporary_zps5a515a8f.jpg

 

temporary_zps06304d62.jpg

 

temporary_zps90183afc.jpg

 

THey all basically look as such. Just to be safe i think i will just get the new pump anyway, and i can use the old one as a bartering chip. :P

Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.