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3500 Questions

Posted by djdavies

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3500 Questions #1
djdavies David D Ca, USA 1973 MG MGB	Posted: March 12, 2012 10:37PM Registered: 3 years ago Posts: 559

Just closed a deal on a 06 Malibu 3500- 60K $349, very clean. 3 things I would like to get clarity on at the moment.

Is the CW vs CCW timing cover/ water pump difference relevant? Do I need one NOT the other?

In relation to the above, do I need to have the AC bracket mounted so that my water pump spins the right way, assuming there is a right way? (See above)

Could this FI be return-less? I read somewhere that modern FI can be return-less. If it is , how do it do it?

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Re: 3500 Questions #2
garylum Gary Lum Nor Cal, USA	Posted: March 12, 2012 11:49PM Registered: 1 year ago Posts: 190

congrats on the 3500!!! I'm jealous smiling smiley

Did you score the whole engine ( harness,ecu, alternator, starter, injectors ) or just the block?

All I have to add is that I don't think you even need the AC bracket

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Re: 3500 Questions #3
djdavies David D Ca, USA 1973 MG MGB	Posted: March 13, 2012 09:42AM Registered: 3 years ago Posts: 559

Just the block, with intake/exhaust, injectors etc. This was from a wrecker, and I don't know if you can get any of the ancillaries that way. Theyd be "extras" anyway. Going megasquirt so no need for the ECU or harness. Alternator would need to be replaced as I understand, so that leaves the starter.

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Re: 3500 Questions #4
MG-Maxx Charles Waugh Hamden, Ct, USA 1979 MG MGB MkIII "Rumpelstiltskin"	Posted: March 13, 2012 10:59AM Registered: 3 years ago Posts: 336

First, I am no expert so you can stop reading now. If you continue, I nor any of my Aviators take any responsibility in any damage or cost associated in utilizing any of the following information.

Now that my lawyer is finished.... moon

Quote: Is the CW vs CCW timing cover/ water pump difference relevant? Do I need one NOT the other?

I never got the exact answer if both can be used, the CCW cover is more common since it was used on all RWD versions of the 60degree family. The CW cover I believe only came on early 2.8 motors and are of course harder to find.

Looking at the kits sold for both versions, it looked like the CW unit would be less expensive for under drive pulleys to get more hp. Not sure mechanically if one is better then the other.

Scott has a mount he builds to keep the CCW version cost down, but it has a small contact patch on the water-pump pulley which may or may not be of concern to you. You can do a search.

I went with the CCW version but have yet to build the front of the motor yet.

Quote: In relation to the above, do I need to have the AC bracket mounted so that my water pump spins the right way, assuming there is a right way? (See above)

You will be basically putting on a 3.4l RWD front end on the 3500. The major difference is that the right Head on the 3500 is set back which changes the mount needed for the alternator. Dann and Marc from Killer B's have a bracket that will work for under $100. I plan to use the belt tensioner from BMC to delete the AC an bracket. The belt length will be slightly different then the complete kit that Brian sells, so I plan to get the belt locally.

Quote: Could this FI be return-less? I read somewhere that modern FI can be return-less. If it is , how do it do it?

Answer Yes you can. How, not sure. Call Marc.

The last answer is the only one I will stand behind! smileys with beer

Now when they say return-less, as normal they are not being truthful. Instead of being returned at the end of the fuel rail, it is returned at the fuel regulator. All it does is keep the front of then engine a little less cluttered. It also always use of the 3500 fuel rail and injectors. If not you have to use the 3400 set up.

Chuck
Hamden, CT

79 MGB - Rumpelstiltskin
Just awakened after a 10 year slumber.
Weber 32/36 DGV, a Stuck 45d Dizzy (stuck at 10 BTDC), Bad Vacuum advance disconnected n plugged. (refer to stuck dizzy) , Peco Exhast.

Edited 1 time(s). Last edit at 03/13/2012 07:35PM by MG-Maxx.

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Re: 3500 Questions #5
garylum Gary Lum Nor Cal, USA	Posted: March 13, 2012 12:05PM Registered: 1 year ago Posts: 190

I may be wrong but don't you have to rotate the intake manifold 180 degrees because of clearance issues? I thought that was the reason one has to change the front timing cover to a 3100/3400 cover

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Re: 3500 Questions #6
MG-Maxx Charles Waugh Hamden, Ct, USA 1979 MG MGB MkIII "Rumpelstiltskin"	Posted: March 13, 2012 07:17PM Registered: 3 years ago Posts: 336

Yes the reason why you have to change the front pulley assembly is due to rotating the UIM 180 degrees. The standard timing cover is very tall an keeps the intake from being turned around.

If you did not need the heater, you might look at leaving the UIM in the stock position and seeing if you could use the fresh air cowl intake as your intake to the engine.

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Re: 3500 Questions #7
TRIKER john fenner BFE, Miami Fl / ( Cuba), USA 1972 MG MGB "Red Barchetta"	Posted: March 13, 2012 11:58PM Registered: 3 years ago Posts: 1,549

3495 answers to go grinning smiley

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Re: 3500 Questions #8
djdavies David D Ca, USA 1973 MG MGB	Posted: March 14, 2012 01:07AM Registered: 3 years ago Posts: 559

In reply to # 2010926 by TRIKER 3495 answers to go grinning smiley

Amen to that brother!!

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