I have a 1980 38' with 671's and just went through this. I obtained new exhaust risers through Tim at Sea Cure Technology (his rapid response and concern that the parts were made properly and arrived quickly to me here in Alaska was wonderful!) I decided that since the old system had lasted for almost 30 years I should stay with that exhaust design.
From: [email protected] [mailto:[email protected]] On Behalf Of Ross Robertson Sent: Tuesday, June 30, 2009 8:57 AM To: [email protected] Subject: [UnifliteWorld] Subject. Exhaust risers.. 38 sf 6/71 TI s ( 325 SHP) I have vertical cylindrical exhaust risers., comprising 2 (vertical) tubes, one inside the other. Exhaust gases enter the inner tube and cooling seawater enters the top outside tube, both exit through a 6" pipe to a fiberglass expansion chamber. Both risers are currently OK but have already had weld repairs , so logically their days are numbered. A friend's boat with 3208TI V8 Cats has different risers. They are inverted U's with exhaust gases fed in at the forward end and cooling water injected at the apex of the U; water and gasses exit at the aft of the U. It is likely my risers will need replacing within 6 months... and I would really welcome information as to whether I should just replace the existing risers ( quite expensive to make ) , or fit the inverted U's which seem much simpler/cheaper... can anyone give me advice? _____ Windows LiveT: Keep your life in sync. Check it out! <http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_allup_explore_012009> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/UnifliteWorld?hl=en -~----------~----~----~----~------~----~------~--~---
